512 MH, H. N. EIDLEY ON THE 



\SC;F'. Lopliactaca lobata, A. Milne-Edwards, Nouv. Arch. Mus. Hint. 

 Nat. i. p. 249, pi. xvi. fig. 3. 



A single male specimen. This is a West-Indian and Mexican 

 species. 



GEAPSOIDEA. 



Family Octpodid^. 



Genus Octpoda, Fahricius. 



1798. Ocypoda, Fahricius (pt.). Ent. Syst. Siippl. p. 317. 

 1837. Ocypoda, Milne-Edivards, Hist. Nat. Crust, vol. ii. j). -41. 

 1880. Ocypoda, Kingsley, Proc. Acad. Nat. Sci. Pliilad. p. 179. 

 1886. Ocypoda, Miers, Brachyura of H.M.S. ' Challenger,' p. 237. 



Ocypoda arenaeia {Cateshy). 



1771. Cancer arenarius, Cateshy, Hist, of the Carolinas, ii. p. 35, 



pi. XXXV. 



1880. Ocypoda arenarius, Kingsley, Proc. Acad. Nat. Sci. Philad. 

 p. 184. 



1882. Ocypoda arenarius, Miers, Ann. Mag. Nat. Hist. ser. 5, x. p. 384, 

 pi. xvii. fig. 7. 



Five adult specimens (four males and one female). 



[Common in holes iu the sand at Suesfe Bay and Sambaqui- 

 chaba.— i/. N. i?.] 



Family Grapsid^. 

 Genus Grapsus, Lamarck. 

 1818. Grapsus, Lamarck (pt.), Hist. Nat. Anim. sans Vert. v. p. 247. 

 1880. Grapsus, Kingsley, Proc. Acad. Nat. Sci. Philad. p. 192. 

 1886. Grapsus, Miers, Brachyura of H.M.S. ' Challenger,' p. 254. 



Ghapsus maculatus {Cateshy). 



1771- Pagurns maculatus, Catesby, Nat. Hist. Carolinas, ii. p. 36, 

 pi. xxxvi. fig. 1. 



1880. Grapsus maculatus, Kingsley, Proc. Acad. Nat. Sci. Philad. 

 p. 192. 



This species has a very wide range, occurring upon the coasts 

 of the warmer temperate and tropical parts of the Indian, Pacific, 

 and Atlantic Oceans. It is exceedingly variable, and the extent 

 of variation is well shown by the specimens brought from Fer- 

 nando Norouha. 



Five immature and two adult males were obtained. ; the former 



