taxonID	type	description	language	source
DF6287DEBC275A5BFEEAFD9EB12FF8DB.taxon	description	(Figs. 1 – 5)	en	Yousuf, Farzana, Kazmi, Si. B. (2005): First record of Sergestes belonging to edwardsii species group (Sergestidae, Crustacea) from the Indian Ocean. Zootaxa 1092 (1): 47-63, DOI: 10.11646/zootaxa.1092.1.5, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1092.1.5
DF6287DEBC275A5BFEEAFD9EB12FF8DB.taxon	diagnosis	Diagnosis Body long, slender, fragile (Fig. 1 A). Carapace (Fig. 1 B) with short acute hepatic and supraorbital spines, hepatic and anterior ridges. Rostrum short (Fig. 1 C) hardly elevated, apically acute, anterior margin vertically armed with single terminal tooth. No supra­orbital ridge, Cervical groove welldeveloped with small hepatic spine at its base. Strong suprabranchial ridge present. Eyes well developed, eyestalks lacking occular tubercle. Telson distally rounded (Figs. 1 A, 1 D). Antennular peduncle (Figs. 1 A, 2 A) about three­fourths as long as carapace, outer margin of segment 1 longer than that of segment 2. Armed with distolateral tooth on basal segment. Antennal flagellum more than twice length of body, divided into proximal and distal parts by short section of annuli forming double band. Inner flagellum in male clasping organ with deep proxmomesial notch whereas in female short, simple and straight spine. Third maxilliped (Figs. 2 B, 2 C) dactylii with single mesial spine on outer margin of subsegments 1 and 2. Outer distal spine on subsegment 1 seldom reaching beyond subsegment 2; outer distal spine on subsegment 2 seldom reaching beyond subsegment 4; outer distal spine on subsegment 4 very short; outer terminal spine on subsegment 6 usually less than length of inner terminal spine. Distal spines on outer margin of subsegments 1, 2 and 4 and outer terminal spine on subsegment 6 tending to be relatively shorter, and inner margin spines more numerous in females. All pereiopods slender (Figs. 3 A – 3 I); first pereiopod small (Figs. 3 A, 3 B, 3 C), First pereiopod about two thirds as long as second pereiopod (Figs. 3 D, 3 E). Third pereiopod longer than second pereiopod (Figs. 3 F, 3 G); first pereiopod armed with numerous barbed spines at carpopropodal articulation (Fig. 3 B). First. pereiopod and second pereiopod armed with curved tooth on lateral margin of ischium. Chelae with dactylus slightly longer than palm, both dactylus and palm bearing terminal tufts of long setae (Figs. 3 C, 3 E, 3 G), fourth pereiopod and fifth pereiopod laterally flattened, bearing natatory setae on all but leading margin of distal two segments (Figs. 3 H, 3 I), fifth pereiopod shorter than of fourth (Figs. 3 H, 3 I). Petasma of male (Figs. 4 A, 4 B) very similar to S. edwardsii but differing in lobus inermis (LI) proximally more rounded and seldom expanded distally; lobus terminalis (LT) posterior lobe usually slightly longer than anterior lobe; lobus connectens (LC) inner lobe armed with hooks posteriorly and distally, but not anteriorly; pars lobus armatus (LA) outer lobe armed with six to eleven hooks along proximoanterior margin; lobus inermis (LI) and lobus terminalis (LT) anterior lobe tending to be longer relative to carapace length. Appendix masculina single (Fig. 4 C) paddle­shaped lobe bearing spines on distal margin. Thelycum of female (Fig. 5 A) with third coxa and sixth thoracic sternite. Sixth thoracic sternite anteriorly forming operculum (OP) projecting posteriorly over common slit­like aperture of sperm receptacles; posterior half of sternite with low transverse ridge terminating beneath proximal projections (PP) on coxa in two low, anteriorly directed sternal protuberances (PB) and with shallow groove extending along midline between transverse ridge and receptacle aperture. Genital cavity (GC) relatively narrow in ventral view, extending distally. Distribution Sergestes brevispinatus. appears to prefer oceanic waters close to continental margin of Central and South America, eastern tropical Pacific and now from Indian Ocean. Remarks According to Judkins (1978) the shortness of the outer distal and outer terminal spines on the maxilliped third dactylus and are relatively similar spines in present specimens. Whereas petasma of male of Judkins processus ventralis (PV), lobus armatus (LA) and lobus connectens (LC) are very prominent but in present specimen processus ventralis (PV) is totally absent. Lobus armatus (LA) thin and lobus connectens (LC) very reduced.	en	Yousuf, Farzana, Kazmi, Si. B. (2005): First record of Sergestes belonging to edwardsii species group (Sergestidae, Crustacea) from the Indian Ocean. Zootaxa 1092 (1): 47-63, DOI: 10.11646/zootaxa.1092.1.5, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1092.1.5
DF6287DEBC2D5A52FEEAFEDEB583FBC9.taxon	description	(Figs. 6 – 10)	en	Yousuf, Farzana, Kazmi, Si. B. (2005): First record of Sergestes belonging to edwardsii species group (Sergestidae, Crustacea) from the Indian Ocean. Zootaxa 1092 (1): 47-63, DOI: 10.11646/zootaxa.1092.1.5, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1092.1.5
DF6287DEBC2D5A52FEEAFEDEB583FBC9.taxon	diagnosis	Diagnosis Body long (Fig. 6 A), somewhat twice length of cephalothorax; segment sixth strongly compressed, about twice as long as high. Carapace with short, acute hepatic and supraorbital spines (Fig. 6 B), strong hepatic and anterior ridges, and weak cervical and postcervical sulci. Rostrum slant (Fig. 6 C), ascend, armed with single terminal tooth. Telson distally rounded (Figs. 6 A, 6 D), exopod and uropod same as that of S. brevispinatus. Antennular peduncle inner flagellum in male clasping organ with deep proxmomesial notch and opposed curved whereas in female short, simple and straight spine same as that of S. brevispinatus. (Fig. 6 A). Third maxilliped of dactylii (Figs. 7 A, 7 B, 7 C) distal spine on outer margins of subsegment 1, 2 and 4, and outer terminal spine on subsegment 6 tending to be relatively shorter in female. Dactylus and distal half of propodus of short spines structure, interspersed with single longer spines. First pereiopod smaller than second pereiopods (Figs. 8 A, 8 B, 8 C, 8 D, 8 E,). Second and third pereiopods elongate, slender, bearing stiff setae (Figs. 8 D, 8 E, 8 F, 8 G); First pereiopod lacking chela; second and third pereiopods with minute chelae (Figs. 8 B, 8 C, 8 E, 8 G). Petasma of male (Figs. 9 A, 9 B) with lobus inermis (LI) finger­like, strongly inflected at proximomesial margin, sometimes slightly expanded distally lobus terminalis (LT) lobes both fingerlike anterior lobe distally rounded, armed both anteriorly and posteriorly with large hooks posterior lobe slenderer, usually slightly shorter than anterior lobe, armed with single large terminal hook. Lobus connectens (LC) bilobed; inner lobe low, rounded, armed with row of large hooks extending longitudinally along posterior face, over distal margin, along anterior face to point below base of outer lobe; outer lobe bulbous, directed laterally, distally armed with several small hooks. Lobus armatus (LA) bilobed; inner lobe low, rounded, distally covered with numerous hooks; outer lobe slender, elongate, directed distolaterally, with large terminal hook and lateral row of four to six smaller hooks on proximoanterior margin. Processus ventralis (PV) extending to about level of inflection between lobus connectens (LC) and lobus armatus (LA). Pars media (PM) with three conspicuous projections on lateral margin. Appendix masculina single (Fig. 9 C) same as that of S. brevispinatus paddle­shaped lobe bearing spines on distal margin. Thelycum of female (Fig. 10 A) consisting of modified portions of third pereiopod and sixth thoracic sternite. Third pereiopod with broad, flat, proximal projection at proximomesial corner, low apical prominence at distomesial corner and elongate, greatly hollowed genital cavity containing occupying most or all of intervening mesial margin; narrow, membranous coxal lamella protruding mesially from coxosternal articulation. Sixth thoracic sternite anteriorly forming operculum projecting posteriorly over common slit­like aperture of sperm posterior half of sternite with low transverse ridge terminating beneath proximal projections on coxa in two low anteriorly directed sternal protuberances and with shallow groove extending along midline between transverse ridge and sperm receptacle aperture. Distribution Sergestes edwardsii is broadly distributed throughout the tropical Atlantic, Caribbean and Gulf of Mexico. Remarks Dactylus of third maxilliped with single mesial spines on outer margins of subsegments 1 and 2 in Judkins specimen but differs from present specimens with only mesial spine on subsegment 2. No difference in petasma of Judkins and present specimens. In Judkins thelycum of female third pereiopod coxa with broad, flat proximal projection at proximomesial corner, low apical prominence at distomesial corner, and elongate, greatly hollowed genital cavity containing ovipore occupying most or all of intervening mesial margin; narrow, membranous coxal lamella protruding mesially from coxosternal articulation. Sixth thoracic sternite anteriorly forming operculum projecting posteriorly over common slitlike aperture of sperm receptacles posterior half of sternite with low transverse ridge terminating beneath proximal projections on coxa in two low anteriorly directed sternal protuberances and with shallow groove extending along midline between transverse ridge and sperm receptacle aperture. Map 1 – 2. Geographical distribution of Sergestes brevispinatus and Sergestes edwardsii (combined).	en	Yousuf, Farzana, Kazmi, Si. B. (2005): First record of Sergestes belonging to edwardsii species group (Sergestidae, Crustacea) from the Indian Ocean. Zootaxa 1092 (1): 47-63, DOI: 10.11646/zootaxa.1092.1.5, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1092.1.5
