GRAPSOIDEA. 349 



tarsus rather stout and unarmed. Hands very nearly equal, smooth, 

 but not shining, a slightly raised horizontal line below on outer sur- 

 face, running into lower finger. 



Cyclograpsm sexdentatus, EDWABDS, Crust., ii. 79. 



HEMIGRAPSUS CRENULATUS (Edw.}, Dana. 



Plate 22, fig. 3 a, hand, natural size ; b, leg of second pair, ibid. ; c, 

 leg of fifth pair, ibid. ; d, abdomen, ibid. 



Bay of Islands, New Zealand. 



The specimens referred to this species, are similar in the front and 

 antero-lateral margin to the sexdentatus. The teeth are triangular 

 and nearly acute. But the tarsi are much more slender, and the 

 margins of both these and the other joints of the eight posterior legs 

 (including upper margins of third joint), are somewhat hirsute. The 

 hand and carpus are smooth. The surface of the carapax in both spe- 

 cies is fine granulous. 



Length of carapax of a male, nine and a half lines ; breadth, eleven 

 lines ; length of the front, five lines. 



Cydograpsus crenulatus, EDWARDS, Crust., ii. 80. 



HEMIGRAPSUS CRASSIMANUS. 



Carapax subtiliter granulatus, margine antero-laterali leviter 2-emargi- 

 nato, dentibus brevissimis et rotundatis, etiam emarginatione tertid obso- 

 letd. Pedes maris antici crassi, nudi, carpo supra indentato. Pedes 

 sequentes tenues, articulo tertio supra fere nudo, infra lanoso, reliquis 

 margines plerumque pubescentibus, quinto supra sulcato, tarso gracili. 

 Abdomen maris perangu^tum, articulo ultimo anguste~ elongate. 



Carapax very fine granulate, antero-lateral margin slightly two-emar- 

 gitiate, teeth very short, rounded; also, a third obsolete emargina- 

 tion. Anterior feet of male stout, naked, carpus indented above. 



88 



