FISHERY BULLETIN: VOL 77, NO 4 



2. Hepatic spine situated at level of antennal spine; branchiocardiac carina long, its anterior 



extremity close to hepatic sulcus. Thelycum with plate of sternite XIV rounded anterolater- 



ally; median plate of sternite XIII subsemicircular or weakly trilobed P.jerryi 



Hepatic spine situated distinctly ventral to level of antennal spine; branchiocardiac carina 

 short, its anterior extremity relatively far from hepatic sulcus. Thelycum with plate of 

 sternite XIV angular anterolaterally; median plate of sternite XIII cordiform P. rectacuta 



3. Rostrum usually strongly arched, short, in adult reaching at most about midlength of second 



antennular article. Petasma with proximal process of rib of dorsolateral lobule transversely 

 oval; ventral costa ending distally in broad, roughly semicircular process. Thelycal plate of 

 sternite XIV produced in small lobules and with anterior border straight or, usually, concave 

 on each side of posteromedian projection of sternite XIII; median ridge (sometimes reduced to 



posterior protuberance) flanked by broad depressions P. balssi 



Rostrum not strongly arched, long, in adult overreaching (often considerably) second antennu- 

 lar article. Petasma with proximal process of rib of dorsolateral lobule subrectangular or 

 nearly circular; ventral costa ending distally in spine or subelliptical process. Thelycal plate 

 of sternite XIV weakly to strongly convex on each side of posteromedian projection of ster- 

 nite XIII, and with neither median ridge nor posterior protuberance flanked by broad 

 depressions 4 



4. Petasma with ventral costa produced distally into long spine considerably overreaching level 



of row of cincinnuli. Thelycum with lateral borders of plate of sternite XIV turning abruptly 

 mesially posterior to midlength, plate bearing short, pedunculate posteromedian protu- 

 berance P. eduardoi 



Petasma with ventral costa ending distally in blunt, short process or spine not overreaching 

 level of row of cincinnuli. Thelycum with lateral borders of plate of sternite XIV not turning 

 abruptly mesially posterior to midlength, plate be£iring long, median ridge or short, subrec- 

 tangular posteromedian protuberance 5 



5. Petasma with ventral costa bearing distolaterally short, flexible projection, and ending distally 



in rather slender spine, not overreaching level of row of cincinnuli. Thelycum with plate of 

 sternite XIV raised in paired submesial elevations, not produced in lobules anterolaterally, 

 and bearing short, subrectangular posteromedian protuberance sometimes continuous with 



depressed ridge P. challengeri 



Petasma with ventral costa lacking projection, and ending distally in blunt, relatively broad 

 process. Thelycum with plate of sternite XIV raised laterally, produced in lobules anterolat- 

 erally and bearing long, ovoid, tear-shaped or subtriangular ridge P. serrata 



Penaeopsis halssi Ivanov and 

 Hassan 1976 



Figures 1-6 



Penaeopsis challengeri? . Balss 925:228, fig. 4 [not 



Penaeopsis challengeri De Man 1911]. 

 Penaeopsis serratus. Ramadan 1938:68, fig. 13a-d 



[not Penaeus serratus Bate 1881, or Penaeopsis 



serratus Bate 1881 1. 

 IPenaeopsis rectacuta. Kensley 1969:154 |not 



Penaeus rectacutus Bate 1881]. 

 Penaeopsis rectacuta. Kensley 1972:20, fig. 8G-I 



[not Penaeus rectacutus Bate 1881]. 

 Penaeopsis serrata. Starobogatov 1972:390, fig. 40. 



Crosnier and Jouannic 1973:11, pi. 2, fig. 3 [not 



Penaeus serratus Bate 1881, or Penaeopsis ser- 

 ratus Bate 1881]. 

 Penaeopsis balssi Ivanov and Hassan 1976:1, fig. 

 1-2 [holotype, V, Zool. Mus. Acad. Sci. U.S.S.R. 

 Leningrad, 1/62552; type- locality, off southern 

 Mozambique, 25'26' S (not 23=26' S as stated in 

 original description, Boris G. Ivanov^), 33°31' 

 E, 410 m. Van Gogh stn 264]. Perez Farfante 

 1977b:173. 



Material. 



KENYA— 29, BMNH, off mouth of Tana 



"Boris G. Ivanov, All Union Research Institute of Manne 

 Fisheries and Oceanography (VNIRO), Moscow, pars, commun. 

 1979. 



724 



