8 S. I. Smith on Brazilian Crustacea. 



A number of specimens which agree perfectly with the description 

 of this species given by Ordway, were collected at Pernambuco by 

 Prof. Hartt. 



A single female from Bahia does not differ from the Pernambuco 

 specimens except in having the sub-median tooth of the front very 

 short, scarcely projecting beyond the median teeth — probably an acci- 

 dental character. 



Several specimens give the following measurements : — 



l^ength of carapax 

 Sex. including sub-frontal spine. 



Pernambuco. Male. 41 -S"!™ 



" " 44-3 



" 47-2 



" Female. 41-8 



44-8 



Bahia. " 34-4 



This species was known to Ordway only from Dana's original spe- 

 cimen collected at Rio de Janeiro. 



Callinectes Ornatns Ordway, loc. cit., p. 571, 1863. 



A male specimen collected at Caravellas agrees perfectly Avith Ord- 

 way's description and with a specimen from Bermuda. 



Length of carapax includmg sub-frontal spine, 36 "2™™; breadth of 

 carapax including lateral spines, 80-5™'° ; i-atio of length to breadth, 

 1 : 2-22. 



A sterile female collected at the same locality may belong to this 

 species. It differs from the male in being thicker and more convex, 

 the areolation more strongly marked, and the granulations coarser ; 

 the teeth of the antero-lateral border are less prominent and more ob- 

 tuse ; and the chelipeds are quite short, the merus not reaching, by 

 considerable, the tip of the lateral spine. 



Length of carapax, 34*6™"^ ; breadth of carapax, 75*0 ; ratio 1:214. 



In the deeply areolated carapax it approaches the larvatus, and it 

 may possibly belong to that species. 



The description and figure of NeptxDius marginatKS A. Edwards* 

 agrees very closely with this specimen, the figure of the abdomen and 

 sternum representing it perfectly, and there can be little doubt that 

 Edwards' species was based on a sterile female of some species of 

 Callinectes. If the habitat. Cote du Gabon., given by Edwards be 

 correct, it is safely inferred that the genus Callinectes is not confined 

 to the American coasts. 



* Archives du Museum d'Histoire naturelle, tome x, p. 318, pi. 30, fig. 2, 1861. 



