THE GRAPSOID CKABS OF AMERICA. 387 



Female. — Cara]-)ace narrower than in the male, widest at antero- 

 lateral angles, surface tuberculous, some tubercles on the branchial 

 region large and depressed. Upper border of orbit regularly arcuate, 

 denticulate, lateral angle a slender tooth projecting forward and out- 

 ward. Curved portion of lateral margin ornamented with 8 to 10 

 bead-like tubercles. Posterior margin tuberculous. Ambulatory legs 

 each armed with a spine on the ischium, and from one to five spines 

 on the merus. 



Measurements. — Male (type of G. armatus), length of carapace 

 25.2, width of same 35.5 mm. Female (type of G. omatus), length 

 of carapace 2G.G, width of same 36 mm. 



Habitat. — On salt marshes. 



Range. — Gulf of Fonseca, Salvador, to Chile. 



Material examined. — 



Gulf of Fonseca, Salvador; J. A. McNiel; 1 male, holotype of 

 armatus (M. C. Z.). 



West coast of Central America (probably samt' locality as the 

 foregoing) ; J. A. McNeil; 1 female, holotype of ornatus (M. C. Z.)^ 



Punta Arenas, Costa Rica; 1 male (Copenhagen Mus.). 



Veragiia, Panama; 1 male, holotype of excellent (Berlin Mus.)» 



Back of Chulliyache (on Bay of Sechura), Peru; on salt marshes; 

 fi. E. Coker; 1 male, received from Peruvian Government (40489). 



UCA TANGERI (Eydonx). 



Plates 135 and 13G. 



Oelasimtts tangeri Eydoux, JIng. de Zool., 1835, CI. 7, pi. 14, colored (type- 

 locality, Tanger; type in Mus. Phila. Acad. Sci.). 



Gclasinins pcrUitu!^ Herklots, Addit. Fauna Afr. Occ, 1851, p. (>, jjl. 1, fig. 

 3 (type-locality, near Boutry ; type in Leyden Mus.). 



GelasituHS citnatodus KocHEiiiaiNK, Bull. Soc. Philoni. Pari'--, ser. 7, vol. 7, 

 1882, p. 171 (type-locality, les deux Mamelles & cote des Maringouins 

 pointe des Clianieaux; type in Paris Mus.). 



Uca tangieri Oktmann, Zool. Jalirb., Syst., vol. 10, 1897, p. 356. 



Uca tangeri Rathbun, Proc. U. S. Nat. Mus., vol. 22, 1900, p. 27G. 



Diagnosis. — Front narrow, but wider than long. Carapace coarsely 

 granulate. Fingers of large cheliped of male thin and flat. 



Descnptian. — Regions of carapace marked by deep furrows; sur- 

 face covered with fine granules mixed with coarse granules or 

 tubercles, most striking on branchial and cardiac regions; surface of 

 front smooth. Front tapering anteriorly, subtruncate, a little 

 rounded at extremit3\ Lateral margins nearly straight and lono-i- 

 tudinal or a little curved for a short distance behind antero-lateral 

 angles, then curving rather abruptly inward and backward; margins 

 formed of alternately large and small granules. Upper margin of 

 orbit very sinuous, marked with small, distant granules; lower 



