PEREZ FARFANTE REVISION OF PENAEID SHRIMP GENUS PENAEOPSIS 



BRASII^2(5 2 9, USNM, SE of Rio Grande do 

 Sul, 345-260 m, 19 January 1967, Akademtc 

 Knipovich. 



MOROCCO— 2 V , RMNH, off Rabat, 300-600 

 m, 12 May 1971, Cadiz trawlers, RMNH Expedi- 

 tion. 2?, RMNH, Casablanca, 28 June 1951, C. 

 Maurin. 



WESTERN SAHARA— 1 : 3, VNIRO-USNM, 

 N of Boca Grande, 640-600 m, 11 May 1965, R. N. 

 Burukovsky, IS 3 i , VNIRO-USNM, off Villa 

 Bens, 420-380 m, 11 May 1965, R. N. 

 Burukovsky. 26 2 9, MP 304, syntypes of Ar- 

 temesia talismani Bouvier 1905, off Guerguerat, 

 410 m, 9 July 1883, Talisman stn 72. 



Diagnosis. — Rostrum straight, basally arcuate or 

 sinuous, and long, reaching or overreaching third 

 antennular article. Anteroventral angle of 

 carapace broadly obtuse. Telson with two (rarely 

 three) pairs of movable spines. Petasma with prox- 



imal plate of dorsomedian lobule thickened me- 

 sially but lacking mesial crest; proximal process of 

 rib of dorsolateral lobule subrectangular; ventral 

 costa ending distally in relatively broad, inwardly 

 excavate process. Thelycal plate of sternite XIV 

 with anterior border broadly arched on each side of 

 posteromedian projection of sternite XIII, and an- 

 terolateral extremities uniquely produced into 

 lobules of variable lengths; median ridge usually 

 ovoid or tear-shaped; median plate of sternite XIII 

 subsemicircuiar to roughly pentagonal with de- 

 pression extending across entire width. 



Description. — Rostrum (Figures 28, 29) almost 

 horizontal or somewhat upturned, variable in 

 shape, straight, or basally arcuate or sinuous 

 (strongly arched in young. Figure 30), and long, 

 reaching between midlength of third article of an- 

 tennular peduncle and proximal fourth of thick- 

 ened portion of dorsal flagellum, its length rang- 



FIGURE 2S. —Penaeopsis serrata, 9 27 mm cl, W of Puerto Rico. Lateral view. Scale = 10 mm. 



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