132 JVotes on North American Crustacea. 



Flagella of the antennas only slightly depressed, and very little hairy. 

 Feet compressed ; those of the third pair reaching the extremity of 

 the scale of the antennae. The abdomen is sharply carinated above, 

 but its sides are glabrous, and much smoother than in any other 

 known species of the gemis, the sulci being very narrow and the 

 protuberant pai'ts flattened and not rugose. 



Length, 0.8 inch. 



Of this species I have seen only one specimen, a male, which 

 was taken in the harbor of Charleston, S. C, by Col. J. D. 

 Kurtz, IT. S. A. 



l§icyoiii:i brevirostris. 



Sicyonia cristata De Saussure, Crust, du Mexique et des Antilles, p. 55, fig. 

 25. (?) 



A species of similar size and closely allied to S. ca7n7iata 

 H. M.-Edwards, from Rio Janeiro; from which it differs, how- 

 ever, in having three teeth on the dorsal carina of the carapax, 

 and four on the superior margin of the rostrum, which is very 

 short, much shorter than the eyes, and unarmed beneatli. 



The crustaceous envelope of this species is very mucli indu- 

 rated. There are small round tubercles scattered on the promi- 

 nent parts of the abdomen, and a few on the posterior parts of 

 the sides of the abdomen. The length of the animal is nearly 

 three inches. 



There is little doubt that this is the adult of S. cristata, 

 Sauss., although the rostrum is shorter and more pointed, and 

 the lateral furrows of the carapax much shallower posteriorly 

 than in the specimens described by De Saussure. The name 

 S. cristata is preoccupied for a Japanese species. 



Found on the S. Florida Coast. 



Penaeus l>ra!«ilieii!!^is. 



Penaeus irasiliensis Latreille, Nouv. Diet. d'Hist. Nat., XXV, 154. H. 

 Mihie-Edwards, Hist. Nat. des Crust., II, 414. Gibbes, Proc. Am. Assoc. 

 Adv. Sci., 1850, p. 198. 



Professor Milne-Edwards states that this species differs from 



