NO. 1199. CRUSTACEANS OF WEST AFRICA— BATRBUN. 303 



PETROCHIRUS GRANULIMANUS (Miers) . 



Pagurus granulimanus Miers, Ann. Mag. Nat. Hist. (5), VIII, 1881, p. 276, pi. xvi, 

 fig. 3. — Chevreux and Bouvier, Bull. Soc. Zool. France, XVI, 1891, p. 254; 

 M^m. Soc. Zool. France, V, 1892, p. 116, pi. iii, figs. 11-15. 



West African localities. — Cape Verde Islands (Milne-Edwards and 

 Bouvier); Dakar, Goree, and Eufisque (Ghevreux and Bouvier); Goree 

 Bay, 9 to 15 fathoms (Miers); Dakar (O. F. Cook, collector); Sene- 

 gambia (Ortmann). 



PETROCHIRUS CAVITARIUS Osorio. 



Petrochirus f cavitarius Osorio, Jor. Sci. Lisboa, XI, 1887, p. 228. 

 Petrochiriis cavitarius Osorio, Jor. Sci. Lisboa (2), 1, 1889, p. 139. 



West African localities. — Gape Verde Islands; Princes Island; 

 Loanda; Angola (Osorio). 



PETROCHIRUS PUSTULATUS (Milne-Edwards). 



Pagurus pustulatus Milne-Edwards, Ann. Sci. Nat. (3), X, 1848, p. 60. 

 Eupagurus ? pustulatus Stimpson, Proc. Acad. Nat. Sci. Phila., X, 1858, p. 238. 

 Petrochirus pustulatus Ghevreux and Bouvier, Bull. Soc. Zool. France, XVI, 

 1891, p. 254 ; M^m. Soc. Zool. France, V, 1892, p. 112, pi. iii, figs. 6-10. 



West African localities. — Goree (Milne-Edwards); Dakar (Chevreux 

 and Bouvier). 



Genus PAGURUS Fabricius. 



= Eupagurus Brandt. 



KEY TO THE V^EST AFRICAN SPECIES OF THE GENUS PAGURUS. 



A. Upper surface of right cheliped with a median longitudinal ridge. 



B. Ridge prominent; depressions deep and relatively smooth excavatus. 



B'. Ridge low ; depressions shallow and granulate sculptimanus. 



A'. Upper surface of right cheliped without ridges. 



B. Hand much longer than wide inermis. 



B'. Hand as wide as long (in the palmar portion) triangularis. 



PAGURUS EXCAVATUS (Herbst) . 



Cancer excavatus Herbst, Natur. Krabben u. Krebse, II, 1791, p. 31, pi. xxiii, fig. 8. 



Pagurus angulatus Risso, Crust. Nice, 1816, p. 58, pi. i, fig. 8. 



Pagurus excavatus White, List Crust. Brit. Mus., 1847, p. 59. 



Eupagurus angulatus Stimpson, Proc. Acad. Nat. Sci. Phila., X, 1858, p. 237. 



Range. — Mediterranean; Bay of Biscay; Goree Bay, Senegal, 9 to 

 15 fathoms (Miers). 



I have not attempted to give the complete synonymy of this species. 

 From the series of specimens in the U. S. National Museum, I judge 

 that P. meticulosus Eoux is distinct from P. excavatus (Herbst). It is 

 probable that this last should be called P. alatus Fabricius, described 

 from Iceland, in 1775; type not extant. 



