CAPliELLlDAE OF WESTERN NORTH ATLANTIC 



85 



Figure 42. — Paracaprella pusilla, female; a, lateral view; b, right mandible; c, abdomen; 



d, gnathopod 2. 



Abdomen with pair of lobes bearing 1 or 2 setae. 



Variation. — -The largest male of this species was approximately 

 6 mm and it bore a very large projection on the anteroventral margin 

 of pereonite 2 (fig. 32a). This projection becomes quite large in the 

 larger males and may be almost absent in small males; however, 

 even in small males it is sharp pointed and not rounded as in P. tenuis 



The depth of the notch on the propodus of gnathopod 2 varies 

 from very slight in small males to very deep in large males. 



Distribution. — Type-locality: Rio de Janeiro, Brazil. 



Other records: Suez Canal; Ft. Lauderdale, Fla.; Port Aransas, 

 Tex.; Kingston, Jamaica; Martinique; Brazil at 28° vS.; tropical West 

 Africa; JMalembe, Congo; Durban, South Africa; Dar es Salaam, 

 Tanzania; Hawaii; Amoy, China. 



New records: Lake Worth, Virginia Key, Key Biscayne, Sarasota 

 Bay, St. Petersburg, and Panama City, Fla.; Grand Isle, La.; Port 

 Isabel, Tex.; St. Tiiomas, Virgin Islands; Guadeloupe; Margarita; 

 Curacao. 



Remarks. — -The males of P. imsilla differ markedly from those of 

 P. tenuis by the large sharp-pointed projection on the anteroventral 

 margin of i)ereonite 2, (he proxinud knob on the basis of gnathopod 

 2, and the presence of setae on the dactylus of gnathopod 2. Setae 

 are occasionally present on tlie dactylus of large males of P. tenuh 

 but this is not generally the case. A i)rojcction is present on the 

 anterior margin of pereonite 2 in large males of P. teftuis, but its 

 position is usually moi-e dorsal, nnd it is more rounded than in P. 

 pusilla. 



