NO. 1199. CRUSTACEANS OF WEST AFRICA— RATHBUN. 313 



ALPHEUS PARACRINITUS Miers. 



Alpheus 2yaracrinitus Miers, Ann. Mag. Nat. Hist. (5), VIIT, 1881, p. 365, pi. xvi, 

 fig. 6. 



Range. — Djibouti (Coutiere) ; West Africa. 



West African localities. — Goree Bay, Senegal, 9 to 15 fathoms (Miers) ; 

 Praia das Conchas, St, Thomas Island (Osorio); Loanda (Osorio). 



ALPHEUS TUBERCULOSUS Osorio. 



Alpheus tuherculostis Osorio, Jor. Sci. Lisboa (2), II, 1890, 15.201. 

 West African locality. — logo-logo, St. Thomas Island (Osorio). 



ALPHEUS INTRINSECUS Bate. 



AlpTieus intrinsecus Bate, Challenger Eept., Zool., XXIV, 1888, p. .557, pi. c, fig. 1. 



Range. — Off Bahia, Brazil, 7 to 20 fathoms (Bate); logo-logo, St. 

 Thomas Island, West Africa (Osorio). 



Family HIPPOLTTID^. 



Genus HIPPOLYTE Leach. 



HIPPOLYTE species (not described) . 



Hippohjte species Osorio, Jor. Sci. Lisboa (2), I, 1889, p. 137. 



West African locality. — Praia das Conchas, St. Thomas Island 

 (Osorio). 



Family A.TYTDM. 



KEY TO THE WEST AFRICAN GENERA OP THE FAMILT ATYID^. 



A. Carpal joint of second pair of feet distally excavated Atya. 



A', Carpal joint of second pair of feet normal, not distally excavated Caridina. 



Genus ATYA Leach. 



ATYA SCABRA Leach. 



Atys scaber Leach, Trans. Linn. Soc. London, XI, 1815, p. 345. 



Atya (jahonensis Giebel, Zeitscbr. f. d. gesammt. Naturwiss., Berlin (2), XII, 



1875, p. 52. 

 Atya scaira and gahonensis Ortmann, Proc. Acad. Nat. Sci. Pbila., 1894, pp. 



409, 410. 

 Atya marcjaritacea var. claviger Aurivillius, K. Sv. Vet.-Akad. Handl., XXIV, 



1898, p. [14], pi. Ill, figs. 5-8. 



Range. — Mexico; Nicaragua; Costa Eica; Orinoco; West Indies; 

 West Africa, and islands. 



West African localities. — St. Paul's Eiver, Mount Coffee (O. F. Cook, 

 collector); Beulah and Muhlenburg Mission (O. F. Cook, collector); 



