-380 Dr. C. Chilton on the 
very small, triangular; propod very large, broadly oval, 
widening slightly to the palm, both margins almost free from 
sete, the hind one with a few small sete towards distal end, 
Fig. 1. 
ee es OD. 
ee 
Fig. 1.—Orchestia tucurauna, first antenna of male. 
Fig. 2.—Orchestia tucurauna, second antenna of male, 
palm nearly transverse in old males, more oblique in younger 
individuals, spinulose, irregularly convex between the blunt 
defining tooth and a deep depression near the hinge; dactyl 
