PENAEOID SHRIMPS (BENTHESICYMIDAE, ARISTEIDAE, SOLENOCERIDAE, SICYONHDAE) COLLECTED IN INDONESIA DURING THE CORINDON II AND IV EXPEDITIONS by

During the CORINDON II and IV expeditions, the former in the Makassar Strait and the latter in Piru Bay and Ambon Bay, Molluccas, 47 species of penaeoid shrimps were collected. They include 2 species belonging to the Benthesicymidae, 5 to the Aristeidae, 19 to the Solenoceridae, 2 to the Sicyoniidae and 19 to the Penaeidae. The twenty eight species of the first four families are considered in this study; the Penaeidae will be presented in a separate publication. Most of the species treated in this work occur in deep water, with only a few samples taken in shallow water. Two species Cryptopenaeus clevai and Solenocera moosai are new; eight others have not been recorded previously in the waters of Indonesia. Several specimens of Solencera innectens (Wood Mason, 1891) have been collected; this species has not been reported since its description and additional figures, particularly of genitalia, are included in this paper. One species of the genus Pseudaristeits and one of the genus Solenocera both probably new, are recorded but not named as only a single specimen of each was collected. In addition to the description of Solenocera moosai, the original drawings of two closely related, but little known species, S. faxoni De Man, 1907 and S. spinajugo Hall, 1961, are published. The bibliography is restricted to literature on Indonesian material. For each species, one or two references, each with comprehensive bibliographies, are provided. For station lists and expedition details, see Moosa.


INTRODUCTION
During the CORINDON II and IV expeditions, the former in the Makassar Strait and the latter in Piru Bay and Ambon Bay, Molluccas, 47 species of penaeoid shrimps were collected.They include 2 species belonging to the Benthesicymidae, 5 to the Aristeidae, 19 to the Solenoceridae, 2 to the Sicyoniidae and 19 to the Penaeidae.
The twenty eight species of the first four families are considered in this study; the Penaeidae will be presented in a separate publication.
Most of the species treated in this work occur in deep water, with only a few samples taken in shallow water.Two species Cryptopenaeus clevai and Solenocera moosai are new; eight others have not been recorded previously in the waters of Indonesia.Several specimens of Solencera innectens (Wood Mason, 1891) have been collected; this species has not been reported since its description and additional figures, particularly of genitalia, are included in this paper.One species of the genus Pseudaristeits and one of the genus Solenocera both probably new, are recorded but not named as only a single specimen of each was collected.
In addition to the description of Solenocera moosai, the original drawings of two closely related, but little known species, S. faxoni De Man, 1907 andS. spinajugo Hall, 1961, are published.The bibliography is restricted to literature on Indonesian material.For each species, one or two references, each with comprehensive bibliographies, are provided.
For station lists and expedition details, see Moosa.

PENAEGID SHRIMPS
Material: CORINDON II -St.286, 1710 m: 1 ♂ 6 mm.This widespread species occurs in the Atlantic, Indian and Pacific oceans.It has been recorded from Indonesia by De Man as G. claviowrpus.Specimens were probably collected during the ascent of the trawl.
In the 12 specimens examined the fifth pereopods bear several photophores, their number varying from 11 to 14 on the carpus, 12 to 15 on the propodus and 6 to 8 on the dactyl.In this respect the Indonesian specimens are similar to those from Japan and not much different from the Madagascar specimens (see CROSNIER 1978, p. 65).
This species has a very wide distribution in the Indo-West Pacific; it has been found off Madagascar, Japan and New Caledonia; and has been reported previously from Indonesia.Specimens heve been collected at depths between 238 and 900 m, but the species seems to occur mostly between 450 and 700 m.
The fifth pereopods bear 9 photophores on the propodus, 11 or 12 on the carpus and from 4 to 6 on the dactyl.
This species is known from off Madagascar, Maldives, Indonesia and New Caledonia, at depths between 366 and 1097 m.
All the specimens are small and damaged.They are identified as sendentatus from the arrangement of photophores on the remaining pereopods.
This species has been reported off Indonesia, Madagascar, India, Kermadec Islands and Hawaii, and has been found at depths between 350 and 1100 m.
This specimen seems to be different from crassipes (Wood Mason, 1891) and from sibogae (De Man, 1911).It can be distinguished by the following characters: -body without setae (this is unlikely to have been caused by rubbing in the trawl during sampling); -median plate of sternite XIII without setae and narrower than those of crassipes and sibogae; -pereopods without setae.Ocular peduncles robust, closer to those of crassipes.This specimen probably belongs to a new species.The genus Pseudaristeus needs to be revised; it is necessary, for example, to define the status of P. gracilis (Bate, 1888) and to check, as KEMP & SEWELL (1912) have suggested, if the material from the Indian Museum, identified as crassipes, contains two different forms.Dr. I. Perez Farfante has begun working on a revision of this genus and the Corindon specimen will be sent to her.
CORINDON IV -St.IIII 1: 1 ♂ 34.2 mm.To date, this species has been collected in the south of India at depths between 700 and 1200 m, off Madagascar between 700 and 1200 m and Natal (as Hymenopenaeus kannemeyeri).
-St.V 2, 250 -244 m: 4 ♂ 14.3 to 26.1 mm; 5 ♀ 25.0 to 29.6 mm.This species has a very wide distribution in the Indo-West Pacific; it has been reported from off Madagascar to Japan, Hawaii and Indonesia, and collected at depths between 180 and 600 m.
This species is known from the Philippines, Indonesia and India (Bay of Bengal) at depths between 1463 and 3197 m.
H. propinquus has been previously recorded from Indonesia.It was collected off the Maldives, in the Gulf of Aden, off Zanzibar, Madagascar and Reunion Island, at depths between 510 and 1200 m.
Hymenopenaeus aequalis, Crosnier & Forest, 1973, fig. 86c -d, 87h This species has been previously reported from Indonesia; it is also known from the Arabian Sea, Shri Lanka, the Andaman Sea, Hawaii and Japan, at depths between 200 and 1367 m.

Figures la -b, 2a -e, 3a
Material: CORINDON IV -St.IV 1, 400 -300 m: 1 ♀ 53.8 mm holotype.Description: Carapace apparently smooth but showing some small widely separated depressions near the dorsal margin of rostrum and orbital border, the pterygostomian area and the anterior part of branchial area; these depressions correspond with the insertion of short setae, most of which have been torn out, probably during trawling.
Rostrum rather short, not quite reaching end of second antennular segment; dorsal margin strongly concave with 3 teeth; 4 teeth situated at regular intervals behind orbit; ventral margin strongly convex.
Postorbital carina high and conspicuous, almost reaching posterior border of carapace; without any notch behind last postrostral tooth, and dorsal border without any depression, longitudinal sulcus or bifurcation.
Carapace with antenna!, postorbital, hepatic and pterygostomian spines.Antennal spine small; the three others longer, subequal.Cervical sulcus accompanied by sharp carina posteriorly, ending far before dorsal border of carapace.Hepatic carina interrupted by broad hepatic sulcus, with anterior end strongly curved, forming a prominent lobe on anterior part of pterygostomian area.No vertical sulcus, nor carina, behind hepatic sulcus, except a short branchiocardiac carina.
Eyes well developed with peduncles slightly wider than long when seen from above.
Antennular peduncle almost as long as the scaphocerite.Antennular flagella cylindrical; only one superior flagellum undamaged, its length equal to 1.25 that of carapace and 2.75 that of antennular peduncle.
Stylocerite not reaching to distal margin of eye.Mouth parts (fig.2ae) typical for Solenoceridae.Endopodite of third maxilliped longer than scaphocerite by length of last segment.
Distribution of branchiae, epipodites and exopodites summarized in Table l ; same as for the genera Haliporoicles, Hadropenaeus and Hymenopenaeus.First pereopod reaching slightly beyond first segment of antennular peduncle; basis and ischium armed with a long subterminal spine on ventral border.Second pereopod with only one shorter spine on basis, not quite reaching extremity of scaphocerite.Third pereopod incomplete, without spines on basis or ischium; no spines on these segments in pereopods 4 and 5. Fourth pereopod reaching about middle of scaphocerite.Fifth pereopod not complete.
Third through sixth abdominal segments with a well marked dorsal carina along the entire length, except on third segment where the carina is 0.80 of the length.Carina or sixth segment ending posteriorly in a spine, and on the other segments with a notch.Second segment with a rounded dorsal elevation along posterior 0.66 of its length, that can be considered a forerunner of carina.Ventral border of sixth segment armed with a small spine distally.Abdominal sternites with a tooth situated between paired pleopods; this tooth is very strong on the first sternite, considerably smaller but very sharp on the second, becoming progressively smaller and rounded on the posterior sternites.
Telson broken.Thelycum (fig.3a) with pentagonal elongated plate, on major part of sternite XIV, with two double protuberances covered with setae situated on each side of median axis.Behind these, a smooth, median raised tubercle present.Posterior part of pentagonal plate with two transverse ridges, raised vertically and separated from each other by a semicircular depression.Proximal to pentagon ah plate, there are two protuberances covered with setae, transversely elongated on extreme anterior part of sternite XIV.They are situated just next to the two double protuberances on the penagonal plate, separated from them by a simple split.
General coloration more or less deep pink; some parts whitish (especially rostrum, scaphocerite, and proximal parts of pereopods and pleopods).Remarks: Until now the genus Cryptopenaeus was represented by just one species catherinae de Freitas, 1979.Only 5 males and 1 female were recorded, all of them collected off Mozambique, at depths between 310 and 500 m.We were able to compare our specimen with the female allotype of catherinae.
Cryptopenaeus clevai may be distinguished from catherinae by the anterior part of the hepatic carina.which is relatively straight in catherinae (fig.Id), strongly curved in clevai (fig. 1b).
There are other differences that separate these two species, but to confirm them it would be necessary to examine many more specimens.These additional characters are as follows:   3a-b ) .
This species is dedicated to Mr. R. Cleva, a technician at the Laboratory of Zoology, at the Museum National d'Histoire Naturelle, who, in the course of his laboratory duties, undertakes with great devotion and competence, much essential but often tedious work.
This species has been reported off Madagascar, in the south of China Sea and off Japan, at depths between 55 -97 m and 348 -360 m.It does not seem to have been recorded previously in Indonesia.
Specimens cited 'above are very similar to those reported by Hall (1962, fig. 75) from the Malacca Strait; their postrostral carina is not very high and the posterior border of sternite XIV is slightly sinuous in females (see CROSNIER, 1978, pp. 143-144).
STAROBOGATOV (1972, pp. 363, 384, pi. 2, fig.6a -c) described S. vietnamiensis, a species closely related to choprai.Dr. B.G. Ivanov from VNIRO loaned us three of the type specimens to examine (Pelamida St. 33,n°53241;St. 34,n°53241).These 3 specimens are, in our opinion, S. koelbeli De Man, 1911.The postrostral carina is divided into two branches, not joining posteriorly as described by Starobogatov for vietnamiensis in figure 6a.It would appear that either Starobogatov has two species present in his type collection, or vietnamiensis is a synonym of koelbeli.The holotype would need to be examined in order to resolve this question, but we believe the latter explanation is correct.

Solenocera melantho
The specimens of S. prominentis Kubo (1949) from Japan can be distinguished from those of typical by the shorter pereopods and smooth dorsolateral lobules of the petasma, Prof. Hoon Soo Kim, University of'Seoul, kindly allowed us to examine one male and one female of prominentis collected in Korea, which confirmed these differences.It is interesting to notice that all the lobules of the petasma in the Korean male are less spiny than that of the Indonesian male: the Korean male have 13 and 14 spines on the ventromedian lobules while the Indonesian specimen has 16 and 17, 9 and 11 spines on the ventrolateral lobules instead of 13.The antennulae are damaged and, therefore, it is impossible to make my comparisons.
The Korean and Indonesian specimens are alike in all other respects and I consider the cited differences may characterize geographically separated populations, but that they do not correspond to different new species or subspecies.I agree with STAROBOGATOV (1972, p. 361) on the synonymy of promiiientis and melantho.
It should be noted that specimens of S. halli Starobogatov, 1972, collected in the Malacca Strait, were misidentified by HALL (1962, fig. 74) as S. melantho.S. halli is closely related to melantho 9 koelbeli De Man, 1911, andaustraliana Perez Farfante &Grey, 1980.Taking into account the confusion between these species, it is difficult to define the geographical distribution of melantho.This species is definitely known from off Korea, Japan and Taiwan (as prominentis), Philippines and Indonesia, occurring at depths between 150 and 400 m.
All the collected specimens are damaged, all having lost their antennulae and most of their legs.They are also very small.
We have compared these specimens with those from Madagascar identified as waltairensis (CROSNIER, 1978, p. 165, fig. 49f, 52g, 55g, 57d, 59c, j, 62d-f, 63e-f).They are similar but show some small differences; the following characters are found in the Indonesian specimens : -anterior part of hepatic carina slightly more vertical; -6 to 8 spines on accessory lobules of petasma (9 to 11 in Mada gascan specimens), 19 to 21 on dorsolateral lobules (instead of 13 to 17).In the Indonesian specimens the spines are spread over a wider area, reaching to below apex of ventrolateral uobules (not in Madagascan specimens).Ventromedian lobules less angular (more curved); one male with 15 spines; another with 24.In the Indonesian specimens the spines on the accessory and dorsolateral lobules are more like those in the types of waltairensis (GEORGES & MUTHU, 1970, p. 292, fig. 1 -4 ) , than the Madagascan specimens although they are stronger and spread over a wider area on the dorsolateral lobules; -sternite XIV in the female is produced posteriorly to form two large protuberances, and anteriorly forms four transverse ele vations.There does not appear to be a median elevation anterior to the large protuberances as is found in the Madagascan speci mens and the waltairensis holotype (this character, however is difficult to ascertain in our small specimens).The Indonesian specimens have 7.8 or 9 rostral and postrostral teeth.The second pereopod surpasses the scaphocerite by the entire length of the dactyl.Starobogatov, 1972 Figures 3c, 4b.Material: CORINDON II -St.208, 149-154 m: 1 ♀ 11.6 mm.This specimen is close to bedokemis HALL (1962, pi. 3, fig.78,  78a -c) and phuongi STAROBOGATOV (1972, p. 366, pi. 3, fig.12a-b) by the possession of 7 rostral and postrostral teeth and also the hepatic carina which runs in an almost straight line with the inferior part of hepatic sulcus.It seems to be closer to phuongi by the arrangement of protuberances and tubercles on the thelycum, but the pereopod lengths Mar. Res. Indonesia Vol.24, 1984: 19-47 are different: the first extends as far as 0.68 the length of the scaphocerite compared to 0.33 in phuongi.The second pereopod extends beyond the scaphocerite by the length of the dactyl (unlike that in phuongi where it reaches only to the end of the scaphocerite).The third pereopod also extends beyond the scaphocerite by a little more than twice the length of the propodus, instead of 2.5 times in phuongL

Solenocera cf. phuongi
The inferior antennular flagellum is composed of 78 segments.The superior antennular flagellum is 1.8 times the length of the carapace.Only the basis and ischium of the first pereopod are armed with a spine.
S. bedokensis and S. phonngi were both described from single, damaged, females (without antennulae) and the illustrations for both were poor.It is therefore difficult to identify specimens until the two species have been adequately redescribed.This is also the case for gurjamovae Starobogatov, 1972, andzarenkovi Starobogatov, 1972, two species closely related to the preceding ones.A total revision of the Solenocera group from the Indo-West Pacific, characterized by the presence of the postorbital, antennal and hepatic spines, and an hepatic carina that is straight anteriorly, would be ideal.This group also includes rathbuni Ramadan, 1938, andwaltairensis Georges &Muthu, 1970.For specific identification the range of variation must be compared and geographical localities taken into consideration.
These specimens posses all the diagnostic characters described by BATE (1888).Two specimens have 63-65 segments in the inferior antennular flagella and the ratio of antennular flagella/carapace length is 1: 1.58 (in male 10 mm cl) and 1: 1.5 (in female 11.8 mm cl).

Solenocera pectinulata
The thelycum was figured by CROSNIER in 1978 (fig.60a) and it should be noted that the two protuberances on the trapezoid plate of sternite XIV often have a larger longitudinal extention than shown in the illustration.This species has been reported from off Japan, Indonesia, west coast of India, Kenya, Mauritius Island and Madagascar, from depths between 75 and 350 m, but usually seems to occur mostly above 175 m.Solenocera sp.Figures 4c, 7b.
Material:  This species falls within the pectinata-pectinulata group.It is probably a new species but with only one male specimens this cannot be confirmed.
The rostrum of this specimen suggests it is close to pectinulata, but the elongate antennular flagella (length equal to 1.65 that of the carapace), the 66 segments in the inferior antennular flagella and the shape of the branchiostegal lobe, place it close to pectinata.The third pereopod is longer than the scaphocerite by 0.33 of the length of the carpus, unlike that of pectinulata in which it is a little more than 0.25, or that of pectinata in which it is 0.20 of the length of the carpus.
The petasma is similar to that of pectinulata in the shape of the ventromedian lobes, length of setae on the dorsolateral lobes and number of spines (10 to 12) on the accessory lobes; but the'ventrolateral lobes have just one tooth on the distal border of their curved extremity as in pectinata; the remaining length of the curved end is pectinated, a character not present in pectinata or pectinulata.Solenocera moosai sp.nov.Figures 5a, 6a, 7c, d, h, i, Material: CORINDON II -St.273, 120 -200 m: 2 ♂ 15.1 and 17.0 mm; 1 5 21.8 mm.The male specimen 17.0 mm cl is the holotype.The other specimens are paratypes.Description: Carapace glabrous, lacking setae except for some setae close to the superior margin of the rostrum.Rostrum well developed and rather high, with a subhorizontal dorsal margin and a convex ventral margin that is sometimes slightly sinuous at end.Extremity of rostrum very distinct, reaching about 0.80 the length of the cornea.Six rostral and postrostral teeth.First, epigastric, tooth separated from preceding one and situated farther from it than from he cervical sulcus at 0.33 of the distance between the cervical sulcus and orbit.Three teeth behind the orbit, fourth tooth above the orbit.Postrostral carina only slightly overreaching the dorsal extremity of the cervical sulcus that extends to the dorsal border but does not interrupt the postrostral carina which is only barely depressed at ist level.
Carapace with antennal, hepatic and postrostral spines.Hepatic carina ending anteriorly in a very sharp lobe projecting beyond the carapace border.Hepatic sulcus clearly distinct and hepatic area above sulcus and behind spine strongly elevated, posteriorly defined by a conspicuous transverse sulcus.Eyes large.
Antennulae with prosarteraa almost reaching the apex of the rostrum; antennular peduncle slightly shorter than scaphocerite.Superior antennular flagella ending as a filament, with the last 12 segments not flattened but cylindrical, and little longer than the inferior flagella.Ratio of superior flagella/carapace length 1 :1.65 in male 15.1 mm cl, and 1 :1.60 in male 17,0 mm cl; 1: 1.42 in female 21.8 m mcl.These specimens have 92.80 and 77 segments respectivtly the inferior flagellum.
External border of scaphocerite with distal spine reaching the distal margin of lamella.
Third maxilliped surpassing the scaphocerite by the length of the dactyl which is equal to 0.75 the length of the male propodus and 0.66 the length of the female propodus.
First pereopod overreaching the base of scaphocerite by entire length of propodus; basis and ischium armed with a rather long subdistal spine on inferior border.Second pereopod with a spine on basis only, extending to end of scaphocerite.Third, fourth and fifth pereopods without spine.Third pereopod surpassing scaphocerite by entire length of propodus and 0.25 that of carpus.Fourth pereopod exceeding scaphocerite by 0.33 length of dactyl in male (the end of the female).Fifth pereopod very long( length close to 2.85 that of carapace).
Coxae of the five pairs of pereopods each armed with tooth that is well developed on the fifth coxa only.
First two abdominal segments without dorsal carina; third segment with a well marked carina on 0.80 to 0.90 of its posterior length.Last three segments with a carina along their entire length.Carina of third, fourth and fifth segments ending posteriorly in a notch; carina of sixth segment ending in a spine.Abdominal sternites with a tooth between pleopods.Inferior borders of sixth segment armed with a small posterior spine.
Telson length equivalent to 1.3 that of sixth abdominal segment, barely longer than internal uropodal rami and barely shorter than external uropodal rami.External border of external uropodal rami ending in an indistinct tooth.Telson dorsally depressed to form a groove anteriorly, then convex, and armed with a pair of strong, fixed, lateral spines at posterior .0.70 of its length.
Thelycum (fig.6a) with a pair of small elevations covered with setae on the anterior part of sternite XIV.Posterior part of sternite XIV trapezoid, entirely smooth with a central protuberance flanked posteriorly by broad, rounded ridges separated caudaly by a longitudinal median sulcus.Petasma (fig.7c -d) with ventromedian, dorsolateral and ventrolateral lobules deeply pectinated.Ventromedian lobules bilobed with 11 to 16 spines on part adjacent to dorsomedian lobules, and 15 to 18 on opposite part.Dorsolateral lobules with 22 to 25 spines and ventrolateral lobules with about 40.Accessory lobules not well developed, consisting of a membranous fold and unarmed.
Appendix masculina represented on figure 7h -i.
I was able to examine the type specimen of faxoni as well as a male and female from Tosa Bay, Japan, and a male misidentified as S. spinajugo Hall, 1961, collected at 19° 02'N -112° 49'E in the collections of the British Museum (Natural History), registration number 1969-862.

S. moosai and S. faxoni have the following characters in common:
-anterior part of hepatic carina forming a sharp branchiostegal lobe with apex extending beyond carapace border; -hepatic area elevated and limited, apart from hepatic sulcus, by a more or less vertical sulcus starting close to posterior end of hepatic sulcus; -six rostral and postrostral spines, the last situated far behind the others; -pereopodal lengths; -extremity of superior antennular flagellum ending in a cylindrical filament composed of about 12 segments (De Man's figure 13c represents a superior antennular flagellum with a broken end as observed in a faxoni specimen from the British Museum which had one entire superior antennular flagellum).S. moosai differs from S. faxoni by the following characters: -distinct dorsal carina on third abdominal segment (totally lacking in faxoni) ; -antennular flagella much longer.is difficult to measure preci sely the total length of the antennula because of the damaged flagella in most specimens.However it seems probable that in faxoni the ratio of superior antennular flagella/carapace length is about 1: 15 to 1: 1.30 and in moosai to about 1: 1.40 to 1: 1.65, this ratio decreasing with the size of the specimens.So it is 1: 1.3 in a male faxoni, 11.8 mm cl, and 1: 1.65 in a male moosai, 15.1 mm cl.There are 52 to 64 segments on inferior antennular flagella in faxoni, and 77 to 82 in moosai.-eyes normal in size (rather small in faxoni); -petasma armed with more developed spines and bilobed ventromedian lobules (entire in faxoni, fig.7e); accessory lobules not separated and without rounded tips but forming a simple mem branous fold.
Detailed comparison of thelyca is not possible with the material available (the faxoni type specimen is partially damaged) but they appear very similar in the two species: both exhibit paired protuberances covered with setae on anterior part of sternite XIV.
The rostrum exhibit some differences (fig.5a, 5d) ; in faxoni the tip is not raised as high and the inferior margin is more sinuous at the extremity.But considering individual variations.
Finally moosai seems to occur at slightly shallower depths than faxoni (120-200 m compared with 250-310 m).HALL (1961, p. 81, pi. 17, fig. 1-3) is also closely related to moosai (and so to faxoni).To date this species is known from the type specimen, a female collected in the north Malacca Strait, at a depth of 75 m.A second female specimen from a depth between 100 and 180 m was collected during the Musorstom I expedition in the Philippines.S. spinajugo is distinguished by the following characters:

S. spinajugo
-• ■ : ' ■ -branchiostegal lobe ending in a distinct spine just reaching the anterior border of carapace (fig.5b) ; -7 rostral and postrostral spines, rostrum not sharply pointed and with inferior margin convex along its entire length; -well developed antennular f lagella: ratio of superior flagella/cara pace length is 1: in female 12.1 mm cl.Flagella with 77 segments in our specimens and filamentous distally on a short distance only (fig.6b) ; -no spine on basis of second pereopod; -dorsal carina on third abdominal segment (less marked than in moosai); -thelycum (fig.6b) with two conspicuous protuberances on anterior part of sternite XIV covered with setae and partially subdivided; trapezoid posterior part of sternite XIV showing posteriorly two large protuberances covered with setae and anteriorly a very small median elevation also covered with setae.Finally this species has normal sized eyes and the cervical sulcus, unlike HALL 'S observation (1961, p. 82) does not continue from one side of the carapace to the other, but is interrupted near the dorsal line as in the other species described in this study.Postrostral crest is indistinct and therefore does not constitute, a distinguishing character.This species was described from a single female collected in the Andaman Sea at a depth of 823 m.It does not seem to have been reported since and the male was previously unknown.For these reasons we have figured our material.
In our specimens the rostrum is more or less raised upward.The length of the antennular flagella is equal or slightly longer than that of the carapace; the inferior flagellum is composed of 55 to 62 segments.The second abdominal segment bears an indistinct carina.
There is great similarity between the petasma of this species and that of faxoni De Man, 1907.However these two species clearly differ in the rostral shape, length of antennular flagella, presence of an orbital spine in anmectens (absent in faxoni), a very sharp carina on third abdomnial segment in annectens (lacking in faxoni).

Family SICYONIIDAE Genus Sicyonia H. Milne Edwards, 1830
Sicyonia lancifer (Olivier, 1811) Sicyonia lancifer, Bate 1888, p. 297, pl. 43, fig. 4. -De Man, 1911, p. 123. -Hall, 1962, p. 37, fig. 124, 124a -b.Number and size of spines on abdominal pleura rather variable.Usually their distribution from the first to the fifth abdominal segment is 1, 1, 3, 3 and 3, but two of our specimens have two spines on the pleuron of the second abdominal segment (making them close to cristata de Haan), and another one has only two spines on the pleuron of the fifth abdominal segment.It should be noted that on BATE'S figure (1888, pl. 43, fig. 4) the third abdominal pleuron has only two spines which, according to DE MAN (1911), is also true for the specimen examined by him.This species was previously reported from Indonesia; it has a very wide distribution in the Indo-West Pacific, occurring at shallow depths.
S. fallax was described from a single female collected in Indonesia, and S. longicauda from many specimens from off Hawaii.S. inflexa , described from 8 females does not seem to have been reported elsewhere except off Japan.
All these species occur in rather deep waters (inflexa at about 300 -450 m; longicauda at 450 to 550 m; fallax at 275 m).
PENAEOID SHRIMPS-distinct notch on postrostral carina behind the last tooth in catherinae, absent in clevai.However this notch is pronounced in catherinae males, according to de Freitas' figure, but feeble in the female (fig.lc) ; -dorsal carina pronounced on second abdominal segment in cathe rinae, just visible (weak and rounded) in clevai;-thelyca very similar in both species; however that of catherinae differs from that of clevai in bearing a longitudinal crest with rounded tip on pentagonal plate (instead of a raised tubercle); smaller setose protuberances in front of pentagonal plate; anteriormost protuberances of sternite XIV larger and rounder; vertical lateral elevations ion posterior border of trapezoid plate bearing a tooth in the internal angle (fig.