THE GKAPSOID CEABS OP AMEEICA. 65 



E J . Carapace widest either in front of or behind middle. 



F 1 . Carapace widest behind middle ostreum, p. 66. 



F 3 . Carapace widest in front of middle. 



G 1 . Of small size and nearly naked, covered everywhere with small, 



persistent, dark spots serrei, p. 84. 



G z . Of good size, immaculate ; chelipeds, legs and under surface 

 pubescent ; margins of merus joints of legs bearded. 



barbatus, p. 88. 

 A*. Carapace as long as, or longer than, wide. 



B l . Postlateral portion of branchial region inclined abruptly in a steep plane, 

 oblique to dorsal surface of carapace, in which it forms a reentering 

 angle. 

 C 1 . Cheliped much wider at distal end than elsewhere. Terminal segment 



of abdomen transversely oblong orcutti, p. 98. 



C 2 . Cheliped swollen in middle, not much if any wider at distal end than 



at middle. 



D 1 . Carapace deeply areolated. Manus longitudinally ridged. Terminal 

 segment of abdomen subrectangular with rounded tip. 



slwemakeri, p. 95. 



D 2 . Carapace moderately areolated. Manus scarcely ridged. Terminal 

 segment of abdomen equilaterally triangular, blunt-pointed. 



taylori, p. 97. 



B". Branchial region gradually inclined downward toward margin. Cara- 

 pace with 4 large, persistent, white spots maculatus, p. 74. 



A 8 . Males not known Jwlmesi. p. 68 ; 



geddesi, p. 69 ; politus, p. 71 ; angelicus, p. 72 ; lithodomi, p. 73 ; puget- 

 tcnsis, p. 82; nudus, p. 83; pubescens, p. 87; strombi, p. 90; silvestrii, 

 p. 91 ; reticulatus, p. 93 ; moseri, p. 94 ; guerini, p. 101 ; hirtimanus, p. 101. 1 



LIST OF KNOWN MALES AND FEMALES OF THE AMEBICAN SPECIES OF PINNOTHEKES. 



EAST COAST SPECIES. 



ostreum, Say Salem, Massachusetts, to Micco, Flor- 

 ida; Guadeloupe $ 2 



geddesi Miers Vera Cruz ; Cuba ; Porto Rico 2 



maculatus Say Cape Cod to Texas; Jamaica; St. 



Thomas $ $ 



depressus Say New Jersey to Cuba ! $ 



serrei Rathbun Cuba ; Jamaica ; Porto Rico $ 2 



barbatus Desbonne St. Thomas; Guadeloupe $ 2 



strombi Rathbun West Florida '. 2 



moseri, new species West Florida ; Jamaica 2 



sJwemakeri, new species West Florida ; St. Thomas $ 2 



liemphilU, new species West Florida $ 



guerini M. Edwards Cuba ; Porto Rico 2 



hirtimanus M. Edwards Cuba 2 



1 Pinnotheres globosum Jacqulnot (Voy. au Pole Sud sur I'Astrolabe et In ZfUc, 

 Zool., vol. 3, 1843 (?), p. 58; atlas, pi. 5, fig. 21), type-locality, Singapore, is recorded 

 by Cano (Boll. Soc. Nat. Napoli, ser. 1, vol. 3, 1889, pp. 98 and 247) as occurring at 

 Porto Lagunas, Patagonia. As no description of the American specimen is given, Its 

 identity with P. globosum needs confirmation. 



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