PUERTO RICAN COPEPODS — GONZALEZ AND BOWMAN 245 



brackish water. It is widespread in coastal waters of the Indian 

 Ocean but has not been found in the coastal waters of Japan although 

 the latter have been thoroughly investigated (summary in Yamazi, 1956). 

 It has not been reported from the Mediterranean or eastern Atlantic. 



Collections made during the 1959 and 1960 Smithsonian-Bredin 

 Expeditions indicate that P. crassirostris is probably widespread in 

 suitable inshore localities in the Caribbean. Specimens were collected 

 at the following localities: Man of War Bay, Tobago; Marigot Bay 

 and Castries Harbor, Saint Lucia; Progresso, Yucatan. 



Remarks. — The minute size, blunt rostral filaments, and short 

 terminal setae of P5 will serve to identify P. crassirostris. Davis 

 (1944) described P. c. var. nudus from Chesapeake Bay, characterized 

 as follows: 



1. Surface armatm-e of P1-P4 reduced, limited to Ri2 of P3 and 

 P4, which are similar to Ri2 of the Puerto Rican specimens. 



2. Last 2 segments of Al equal in length. The validity of this 

 criterion is doubtful since it appears from the arrangement of the 

 setae that the narrow terminal segment is missing in Davis' drawing 

 (pi. 1, fig. 5) although this segment is shown in his lateral view of 

 the female (pi. 1, fig. 4). Al has 24 segments in both drawings, 

 but in figure 5 the long basal segment is shown as divided into 2 

 segments. In Puerto Rican specimens the basal segment usually is 

 not divided, but a suture is occasionally present, in which case Al 

 is 25-segmented. 



3. The terminal segment of P5 is relatively long. 



Puerto Rican specimens show more resemblance to those described 

 by Gurney (1927) from the Suez Canal than to Davis' P. c. var. 

 nudus. Specimens examined from off Cape Kennedy, Fla., are 

 indistinguishable from Puerto Rican specimens. Deevey's (1948) 

 specimens from Tisbury Great Pond agreed in aU respects with 

 Gurney's description and not with P. c. var. nudus. 



Paracalanus parvus (Claus) 



Figures 3b-i 



Calamis parvus Claus, 1863, pp. 173-174, pi. 26, figs. 10-14; pi. 27, figs. 1-4. 



Paracalanus parvus (Claus). — Boeck, 1865, pp. 232-233. — Cleve, 1900, pp. 

 80-81.— Farran, 1929, pp. 221-222.— Wilson, 1932a, p. 26; 1932b, pp. 38-39, 

 fig. 21. — Vervoort, 1946, pp. 130-132 [literature and synonomy]. — Bigelow 

 and Sears, 1938, pp. 336-337, fig. 34.— Oliveira, 1945, p. 455, pi. 3, fig. 5; 

 pi. 4, figs. 3-6; 1947, p. 459, fig. 8.— Carvalho, 1945, pp. 93-94, pi. 7, fig. 4; 

 1952, pp. 143-144, pi. 1, figs. 13-14.— SutcliS^e, 1948, p. 235.— Davis, 1950, 

 p. 204 (table).— King, 1950, p. 128 (table).— Deevey, 1952a, p. 92; 1952b, 

 pp. 142-144, fig. 13; 1960, p. 29, figs. 8, 11.— Grice, 1956, pp. 62-64; 1960, 

 p. 223; 1962a, p. 287, passim.— Woodmansee, 1958, pp. 253-254.— L6gar6, 



