PUERTO RICAN COPEPODS — GONZALEZ AND BOWMAN 247 



Carvalho, 1952, p. 144, pi. 1, figs. 15-17.— Wickstead, 1956, pp. 10-11.— 

 Grice, 1960, p. 220.— Grice and Hart, 1962, passim.— L6gar4, 1961, table 

 5.— Zoppi, 1961, table 4.— Breuer, 1962, p. 167.— Cervig6n, 1962, pp. 183- 

 184.— Bjornberg, 1963, pp. 31-33, fig. 16. 



Female. — Length 1.1-1.6 mm. Prosome : m^osome = about 2.5. 

 Head not vaulted, rostral filaments very slightly curved posteriad. 

 Genital segment shorter than 2d or 3d urosome segments; sper- 

 mathecae highly refractile and conspicuous. Caudal rami nearly 

 twice as long as broad. Al segments 4, 6, 8, 18, and 22 each with 1 

 aesthete. 



Male. — Length 1.1-1.2 mm. Urosome segment 2 shorter than 

 segments 3 and 4 combined. Left P5 unisegmental. 



Distribution. — Worldwide in warm waters. In the western 

 Atlantic it has been found from south of Montauk Point, Long Island 

 (40°44' N., 71°4r W., Grice and Hart, 1962) to off Mar del Plata, 

 Argentina (Farran, 1929). It is an oceanic species, found only rarely 

 in our collections. 



Family Centropagidae 



None of prosome segments fused. Female Al 24-25-segmented; 

 one of male Al prehensile. Male mouthparts not reduced. Re and Ri 

 of P1-P4 3-segmented in marine genera. Female P5 biramous, 

 natatory, right Re2 produced mediad into strong spine. Male P5 

 biramous, Ri well developed and bearing setae, right P5 stronger. 



Genus Centropages Kr0yer 



Urosome 3-segmented, genital segment often asymmetrical. Al 

 24-segmented. Re of A2 longer than Ri. Distal setae of Mx2 long, 

 robust, sparsely armed with setules. Re3 of P4 with 3 outer spines. 

 Re of left male P5 2-segmented; Re of right male P5 3-segmented, 

 Re2 and Re3 together forming a claw. 



Centropages furcatus (Dana) 



Figures 4:h-g 



Catopia furcala Dana, 1849, p. 25; 1852, pp. 1173-1174, pi. 79, figs. la-d. 



Centropages furcatus (Dana). — Cleve, 1900, p. 52. — Foster, 1904, p. 73. — Farran, 

 1929, p. 255.— Bigelow and Sears, 1939, p. 345 [furcata].— Wilson, 1942, p. 177; 

 1950, pp. 186-187.— Carvalho, 1945, p. 95, pi. 7, fig. 6; 1952, p. 145.— Davis, 

 1950, p. 92 (table).— King, 1950, p. 128 (table) .—Wickstead, 1956, p. 12.— 

 Grice, 1956, pp. 52-53; 1960, p. 224.— Grice and Hart, 1962b.— L^gar^, 1961, 

 table 5.— Zoppi, 1961, table 4.— Breuer, 1962, p. 167.— Cervig6n, 1962, 

 p. 184.— Fish, 1962, p. 15.— Bjornberg, 1963, pp. 42-43, fig. 23. 



Manaia vilificata Oliveira, 1947, pp. 466-467, fig. 10 (text), pi. 6, figs. 1-9. 



Female. — Length 1.6-1.7 mm. Prosome rather narrow. Ventral 

 eye strongly produced. PedSeg 5 symmetrical, produced on either 



