PEREZ FARE ANTE: REVISION OF PENAEID SHRIMP GENUS PENAEOPSIS 



Figure 16. — Penaeopsisjerryi,hohtype 2 20.5 mm cl.offBerbera, Gulf of Aden, Somalia. Cephalothorax, lateral view.Scale = 5mm. 



Figure 17. — Penaeopsisjerryi. holotype. A, Anteroventral part 

 of carapace. B, Telson and left uropod, dorsal view. Scales: A = 2 

 mm,B = 5 mm. 



female, about 1.6 times as long as second in 

 former and 1.4 in latter; prosartema almost at- 

 taining distal margin of first article; distolateral 

 spine slender, sharp, and reaching about mid- 

 length of second article. Flagella similar to those 

 ofP. rectacuta. 



Scaphocerite falling short of to overreaching 

 distal end of antennular peduncle; lateral rib end- 

 ing in slender spine, falling slightly short of mar- 

 gin of lamella. Antennal flagellum more than 

 twice the length of the animal (Kurian 1964). 



Third maxilliped and pereopods in most speci- 

 mens too poorly preserved to allow observations 

 on their maximum anterior extensions. 



Abdomen with sixth somite elongate, about 1.7 

 times height, bearing long, strong, interrupted 

 cicatrix on lateral surface; cicatrix also on fifth 

 and fourth somites. Telson (Figure 17B) with lat- 

 eral margins bearing three pairs of small, mov- 

 able spines (occasionally only one or two pairs, 

 rarely with different numbers of spines on mar- 

 gins); fixed spines vsiriable in length, reaching at 

 most base of distal third of terminal portion; ter- 

 minal portion with length about 6-7 times basal 

 width, narrowly hastate or with lateral margins 

 basally rounded, and dorsal surface moderately 

 convex. Mesial ramus of uropod falling short of to 

 overreaching apex of telson by as much as 0.2 of 

 its own length; lateral ramus overreaching me- 

 sial ramus by about 0.2 of its own length. 



Petasma (Figure 18A, B) with dorsomedian 

 lobule produced into rather broad distomedian 

 projection, and bearing elongate distal plate and 

 broader, subtriangular proximal plate raised 

 mesially in blunt crest; rib of dorsolateral lobule 

 with distal part straight or turning laterally, and 

 terminating proximally in semicircular or sub- 

 circular process. Ventrolateral lobule bearing 



739 



