NO. 1199. CRUSTACEANS OF WEST AFRICA— RATHBUN. 293 



Tribe OXYRHYNCHA. 

 Family MAIID^. 



KEY TO THE WEST AFRICAN GENERA OF THE FAMILY MAIID^:. 



A. Eyes witliout defined orbits. 



B. Rostrum simple Stenorynchus. 



B . Rostrum two-spined Macropodia. 



A'. Eyes with defined orbits. 

 B. Orbits incomplete, with, open fissures. 



C. Carapace triangulate; preorbital spines acute, well developed, directed 



outward Pisa. 



C Carapace suboval; branchial regions swollen; preorbital teeth short, 



blunt Micropisa. 



B'. Orbits complete Libinia. 



■ Genus STENORYNCHUS Lamarck. 



STENORYNCHUS SAGITTARIUS (Fabricius). 



Cancer Sagittarius Fabricius (part), Ent. Sys. emend, et aucta, II, 1793, p. 442. 

 Leptopodia sagittaria Leach, Zool. Misc., II, 1815, p. 16, pi. 67. 

 Stenorynchus Sagittarius Rathbun, Ann. Inst. Jamaica, I, 1897, p. 4. 



Range. — Cape Hatteras, North Carolina, to Rio de Janeiro, Brazil; 

 West Africa. 



West African localities. — Madeira Islands; Canary Islands; Cai^e 

 Verde Islands; Senegambia (Herklots); St. Thomas (Osorio). 



Genus MACROPODIA Leach. 



MACROPODIA ROSTRATA (Linnaeus). 



Cancer rostratiis Linn^us, Fauna Suecica, 1761, p. 492. 



Cancer phalangium Pennant, Brit. Zool., IV, 1777, p. 8, pi. ix, fig. 17. 



Stenorynchus phalangium Milne-Edwards, Hist. Nat. Crust., I, 1834, -p. 279. — 



Bell, Brit. Stalk-eyed Crust., 1853, p. 2, figures. 

 Macropodia rostratus Stebbing, Hist. Recent Crust., 1893, p. 105. 



Range. — Europe; West Africa. 



West African localities. — Azores Islands; Madeira Islands; Cape 

 Verde Islands; Goree Bay, Senegambia, 9 to 15 fathoms (Miers). 



MACROPODIA ROSTRATA SPINULOSA (Miers). 



Stenorhynchus rostratus var. spinulosus Miers, Ann. Mag. N. H. (5), VIII, 1881, 

 p. 206. 



Range. — Belfast Bay, Ireland (Miers); Vigo Bay, Spain (Miers); 

 West Africa. 



West African locality. — G-oree Bay, Senegambia, 9 to 15 fathoms 

 (Miers). 



Anterior legs armed with numerous spinules on the upper and lower 

 edges of the arms, wrists, and hands; the fingers, which are dilated 

 and laterally compressed, are smooth, and when closed have between 

 them, near the base, a wide hiatus. 



