ACADEMY OF SCIENCES. 153 



The branchial regions are much elevated in old specimens. 



I have preferred to employ Dana's name of Goniograpsus in preference to 

 Randall's Pachygrapsus, as the generic characters given by the former author 

 are the more precise and definite. 



This species appears to be very near to the Goniopsis cruentatus of De 

 Haan, but that species has the hand, carpus, and dactylus small spinulous 

 above. 



No. 58. Magdalena Bay, in spirits. W. J. Fisher. 



19. Pachygrapsus (Golograpsus) crassipes. Randall, Jour. Acad. Nat. Sci., 



Phil., VIII, 137; Stimpson, Crust. & Echi., P. S. N. A., 27. 

 No. 59. Several specimens, S. F. Bay. W. N. Lockington. 



20. Goniograpsus (Pachygrapsus) transversus. Gibbes, Amer. Asso. Adv. 



Sci., 1850, p. 181; Stimpson, Ann. Lye. Nat. Hist., N. Y., vol. VII, 

 p. 64; S. I. Smith, Rep. Peabody Acad. Sci., 1869, p. 91. 

 The last named writer mentions specimens from Havana, the Gulf of Fon- 

 seca, and other points of the Pacific coast. 



i have not seen either the species or a description of it, and therefore can- 

 not be certain that the species just described may not be identical with it; but 

 if so, the name transversus is very inapplicable. 



21. Glyptograpsus impressus. S. I. Smith, Trans. Conn. Acad., vol. II, p. 154. 

 Acajutla, west coast, Central America. 



32. Goniopsis cruentatus. De Haven; S. I. Smith, Rep. Peabody Acad. Sci., 

 1869, 91. 



23. Sesarma sulcata . S. I. Smith, Trans. Conn. Acad., loc. cit. p. 156. 

 Corinto, W. coast Nicaragua. . 



24. Sesarma occidentalis . S. I. Smith, loc. cit. p. 158. 

 Acajutla, W. coast Central America. 



25. Sesarma augusta. S. I. Smith, loc. cit. p. 159. 

 Pearl Islands, Bay of Panama. 



26. Aratus Pisoni? M. Edwds, Ann. Sci. Nat. 3d ser., 1853, tome XX, p. 

 187. Hist. Nat. des Crust. II, p. 76, pi. 19, f. 45. 



" A specimen from Corinto, Nicaragua, appears to belong to this species, 

 but it has not been carefully compared with east coast specimens." S. I. 

 Smith, Rep. Peabody Acad. Sci., 1869, p. 92. 



GONOPLACID^. 



27. Prlonoplax ciliatus. S. I. Smith. 

 Panama. 



