FISHERY BULLETIN: VOL 77. NO. 4 



FIU Department of Biological Sciences, 



Florida International University, 

 Miami, Fla. 



MCZ Museum of Comparative Zoology, 



Harvard University, Cambridge, 

 Mass. 



MP Museum National d'Histoire Nat- 



urelle, Paris. 



ORI Oceanographic Research Institute, 



Durban. 



RMNH Rijksmuseum van Natuurlijke His- 

 torie, Leiden. 



SAM South African Museum, Cape Town. 



UMML Rosenstiel School of Marine and At- 

 mospheric Science, University of 

 Miami, Miami, Fla. 



USNM National Museum of Natural History, 

 Smithsonian Institution, Washing- 

 ton, D.C. 



VNIRO All Union Research Institute of 

 Marine Fisheries and Oceanog- 

 raphy, Moscow. 



YPM Peabody Museum of Natural History, 



Yale University, New Haven, Conn. 



ZSI Zoological Survey of India, Calcutta. 



Penaeopsis Bate 1881 



Penaeus. Bate 1881:173 [part]. Alcock and 

 Anderson 1899:278. [Not Penaeus Fabricius 

 1798]. 



Penaeopsis Bate 1881:182 [type-species, Peraaeop- 

 sis serratus Bate 1881, designated by Bouvier 

 1905a:981]; 1888:273. Bouvier 1905b:747; 

 1908:3. A. Milne Edwards and Bouvier 

 1909:220 [part]. De Man 1911:53 [part]. 

 Balss 1925:228. Schmitt 1926:319 [part]. 

 Burkenroad 1934a:48 [part, subgenus Penae- 

 opsis]. Kubo 1949:320. Balss 1957:1519 

 [part]. Burkenroad 1959:285 [Neither Pene- 

 opsis Faxon 1895, or Penaeopsis Yokoya 

 1941, Barnard 1950]. Gender: feminine. 

 Placed on the Official List of Generic Names 

 in Zoology as Name 1821, International 

 Commission on Zoological Nomenclature 

 1969, Opinion 864:139. 



Parapenaeus Smith 1885:172 [part]. Alcock 

 1905:519 [parti; 1906:30 [part]. De Man 

 1911:77 [part]. Balss 1925:228. 



Metapenaeus Wood-Mason 1891:271 [parti. 



Diagnosis. — Body slender, integument glabrous. 

 Rostrum eirmed only with dorsal teeth; epigastric 



tooth separated from first rostral tooth by approx- 

 imately 0.35 length of carapace; two low and 

 sharp adrostral carinae, dorsal one running along 

 bases of teeth. Carapace without longitudinal or 

 transverse sutures; orbital and branchiostegal 

 spines lacking; antennal and hepatic spines mod- 

 erately long; pterygostomian spine well devel- 

 oped; cervical sulcus well defined, its posterior ex- 

 tremity placed slightly anterior to midlength of 

 carapace, and relatively far ventral to dorsal mid- 

 line; hepatic sulcus, reaching pterygostomian 

 spine, well marked anteriorly, shallow posterior 

 to hepatic spine; anterior part accompanied by 

 sharp carina; branchiocardiac carina present. 

 Abdomen carinate dorsally from fourth through 

 sixth somites (carina rounded on fourth, keellike 

 on posterior somites, continuous posterolaterally 

 with paired short spines on fourth and fifth so- 

 mites, and with sharp spine posteriorly); sixth 

 somite bearing interrupted cicatrix on lateral 

 surface, and pair of minute spines posteroven- 

 trally . Telson with median sulcus flanked by sharp 

 carinae, and pair of moderately long, fixed lateral 

 spines preceded by two or three pairs of small, 

 movable spines. First article of antennular 

 peduncle bearing long subdistal "parapenaeid 

 spine" on ventromedian margin; antennular 

 flagella with length about 0.75 to almost twice 

 that of carapace; ventral flagellum sexually di- 

 morphic, in male shorter than dorsal and strongly 

 modified, with proximal part forming rigid, flat- 

 tened, semicircular loop, bearing basal scale and 

 ending distally in usually conspicuous, blunt 

 knob; distal part straight and somewhat com- 

 pressed. In female, ventral flagellum also bearing 

 basal scale, but straight and longer than dorsal. 

 Mandibular palp two jointed, proximal article 

 short, subtriangular (oriented with base distally), 

 distal article considerably longer than proximal, 

 broadly oval. First maxilla with broad unjointed 

 palp not produced distally. Flagellum of first 

 maxilliped slender, overreaching distal exite of 

 coxa. Third maxilliped lacking basial spine. Ba- 

 sial and ischial spines on first pereopod, always 

 lacking on third. Exopods (small but not vestig- 

 ial) on all maxillipeds and pereopods. Petasma 

 symmetrical, lacking channeled, hornlike disto- 

 lateral projections; dorsomedian lobule bearing 

 distal and proximal plates; rib of dorsolateral 

 lobule produced into conspicuous, flattened, 

 proximal process. Appendix masculina small but 

 well developed and relatively heavily sclerotized. 

 Thelycum with well-developed median plate on 



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