248 PROCEEDINGS OF THE NATIONAL MUSEUM ^ol. 117 



side into long point; on rounded medial to each point is shorter spine. 

 Genital segment produced into triangular lobes on either side and into 

 rounded ventral lobe on right side. Anal segment twice as long as 

 preceding segment. Right caudal ramus very slightly longer and 

 wider than left. Al slightly longer than body; anterior margins of 

 segments 1, 2, and 5 produced into sharp teeth. P5 as in figures 

 4e-/. 



Male. — Length 1.2-1.3 mm. Segments 15-16 of prehensile 

 antenna with very small teeth on anterior margin. P5 as in figure 

 4:g. 



Distribution. — Circumtropical. In the western Atlantic from 

 the Gulf Stream offshore from Chesapeake Bay (Grice, 1962a, 1962b, 

 station II) to the south of Rio de Janeiro. It is rare in the area of 

 the Puerto Rican study but is common farther offshore. On the 

 1959 Smithsonian-Bredin Expedition it was collected at Man of War 

 Bay, Tobago; Marigot Bay, Saint Lucia; and Prince Rupert Bay, 

 Dominica. Oliveira's (1947) Manaia velificata is clearly an immature 

 Centropages jurcatus. 



Family Temoridae 



Head and PedSeg 1 separate, PedSegs 4 and 5 fused or free. Uro- 

 some 3- (rarely 4-) segmented in female, 5-segmented in male. Al 

 24-25-segmented ; right Al of male prehensile. Ri of P1-P4 with 

 less than 3 segments. P5 uniramous in both sexes. 



Genus Temora Baird 



Body short and compact; head much higher than posterior prosome. 

 PedSegs 4 and 5 fused. Female urosome 3-segmented. Head with 2 

 deUcate rostral filaments. Caudal rami long and narrow, sometimes 

 asymmetrical. Al 24-segmented. Ri of A2 7-segmented, only 

 slightly longer than Re. Re of P1-P4 3-segmented; Ri 2-segmented. 

 Female P5 3-segmented. Male P5 very asymmetrical; left P5 longer, 

 4-segmented, Ri represented by medial process of B2 forming chela 

 with 4th segment; right P5 3-segmented. 



Temora stylifera (Dana) 



Figures 4th-k 



Calanus stylifera Dana, 1849, p. 13. 



Temora stylifera (Dana).— Giesbrecht, 1892, pp. 328-338, pi. 17, figs. 1, 2, 4-13, 

 19, 22; pi. 38, figs. 26, 29.— Dahl, 1894, p. 12.— Cleve, 1900, p. 88.— Farran 

 1929, pp. 257-258.— Wilson, 1932b, p. 104, fig. 69; 1942, p. 209; 1950, p. 343, 

 pi. 34, fig. 526.— Bigelow and Sears, 1939, p. 345.— Carvalho, 1945, p. 97, 

 pi. 8, figs. 9a-c; 1952, pp. 147-148, pi. 1, figs. 28-32.— Oliveira, 1945, p. 

 455.— Davis, 1950, p. 94 (table).— King, 1950, p. 128 (table).— Deevey, 

 1952a, p. 90; 1952b, pp. 131 (table), 147; 1960, p. 33.— Grice, 1960a, p. 220 



