52 PROCEEDINGS OF THE NATIONAL MUSEUM VOL. 120 
I 0.1 mm. ] 
Ficure 12.—Basistyle and dististyle: a, C. coronator, San Pedrode, Argentina, USNM 
RB61 83; b, C. usquatus, Piraja, Brazil, USNM RB61 275; c, C. camposi, Fosca, Colombia, 
USNM RBé2 109; d, C. ousqgua, Port Limon, Costa Rica, USNM RB62 80; ¢, C. usquatis- 
simus, Panama, C.Z., USNM RB62 491. Mesosome: f, C. coronator, San Pedrode, 
Argentina, USNM RBé61 83. 
