115 

 PACHYGRAPSUS CRASSIPES, liandall. 



Pacht/grapsus crasaipes, Randall, Jour. Acad. Nat. Sci. Phila., viii, 127. — M. Edwards, 

 Melanges Carcinologiques, 132. — Stimpson, Jour. Boston Sci. Nat. Hist., 1857, 

 vi, 27 ; Proc. Acad. Nat. Sci. Phila., 1858, x, 102. 



Locality : Lower California. 



GRAPSUS RUDIS, M. Edw. 



Grapsus rudis, M. Edwards, Hist. Nat. des Crust., ii, 87 ; Annal. des Sci. Nat., 3 re Ser. 

 XX, 168 ; Melanges Carcinologiques, 134. — Gibbes, Amer. Assoc. Advan. Scieuce, 

 1850, 17.— Stimpson, Proc. Acad. Nat. Sci. Phila., 1858, x, 102.— Heller, Crust. 

 Novara Exped., 47. 



Grapsus hirtus, Randall, Jour. Acad. Nat. Sci. Phila., viii, 124. 



Locality : Fanning Group. 



GEOGRAPSUS CRINIPES, (Dana) Stimp. 



I Geograpsus crinipes, Stimpson, Proc. Acad. Nat. Sci. Phila., 1858, x, 101. — Hellkr, 

 * Crust. Novara Exped., 48. 



Grapsus crinipes, Dana, Proc. Acad. Nat. Sci. Phila., 1851, v, 249 ; U. S. Expl. Exped., 

 Crust., J, 341, pi. xxi, f. 6. — M. Edward, Melanges Carcinologiques, 136. 



Locality : Fanning Group. There is less concavity in the posterior 

 border of the epistome in this specimen than is given in Dana's figure. 

 I This authority lays particular stress upon this i)oint, but I deem it of 

 I minor importance. The specimen agrees in every other particular. 



PINJ^OTHEEID^. 



PINNIXIA TUMID A, Stim]), 

 Pinnixia tumida, Stimpson, Proc. Acad. Nat. Sci. Phila., 1858, x, 108. 



Locality : BellaQas Bay, Lower California. Removed from the inte- 

 rior of the body of a holothurian. 



Although separated by the entire width of the Pacific Ocean, yet this 

 specimen agrees in every particular with the description given by 

 I Stimpson of a species from the port of Hakodadi, on the island of Jesso. 

 P. tumida and P. faha, Dana, are the only species of this genus that are 

 characterized by the absence of ridges on the superior surface of the 

 carapace. There is nothing in Dana's description of his species, which 

 came from Puget Sound, which' would militate against this being the 

 same ; but in the plate a figure of the hand is given, in which the fingers 

 are oblique, as in tumida, but there is no hiatus between them, and the 



