THE GRAPSOID CRABS OF AMEBICA. 395 



Pigres, Costa Eica; A. Zeledon; 9 males, 1 female (43352). 



Quebrada Chavarria, Golfito, Gulf of Dolce, Costa Rica; April, 

 1896; H. Pittier; 3 males, 4 females (19435). 



La Capitana, Canal Zone; H. Pittier; 4 males (43848 and 44320). 



Eio Calabre, Panama; Mar. 18, 1911; Meek and Hildebrand; 4 

 males (43988). 



Marraganti, Panama; Jmie 2, 1912; E. A. Goldman; 1 male 

 (48277). 



Panama; Sternbergh, collector; 1 male (22185). 



Additional records. — Magdalena Bay, Lower California (Lock- 

 ington). San Jose del Cabo, Lower California (Holmes). 



UCA PUGNAX (Smith). 

 Plate 139. 



Gelasimus vocans Gould, Rept. Invert. Massachusetts, 1841, p. 325 (part). 



Not Cancer vocans Linnaeus. 

 Gclashnns vocans, var. A, De Kay, Nat Hist. New York» 1844, Crust., p. 14, 



pi. 0, fig. 10. 

 Gelasimus pvgilator LeConte, Proc. Acad. Nat. Sci. Philadelphia, vol. 7, 



1855, p. 403 (not Bosc). 

 Gclasitnns palustris Smith, Amer. Nat., vol. 3, 1870, p. 557; male with 



nearly equal hands. 

 GelasimuH pvgvax Smith, Trans. Connecticut Acad. Arts and Sci., vol. 2, 



1870, p. 131, pi. 2, fig. 1; pi. 4, figs. 2-2d (type-locality. New Haven, 



locality of specimens figured; type in P. M. Y. U.). 

 Gelasimus vocator Kingsley. Proc. Acad. Nat. Sci. Philadelphia, 1880, p. 



147 (part). 

 Uca vocator Ortmann, Zool. Jahrb., Syst., vol. 10, 1897, p. 352 (part). 

 Vca pugnax Rathbun, Amer. Nat., vol. 34, 1900, p. 585. 



Diagnosis. — Oblique ridge inside hand terminating at carpal cav- 

 ity. Inner surface of hand coarsely granulate. Eyebrow nearly 

 vertical. 



Description. — Carapace so convex fore and aft that in a dorsal 

 view the lower edge of the front and the eyebrow are invisible. The 

 most conspicuous depressions are the H-form depression, a pit on 

 the branchial region in line with the gastro-cardiac sulcus, and a pit 

 behind the middle of the orbit. Front about two-sevenths of the 

 fronto-orbital width, margin regularly arched. Upper margin of 

 orbit sinuous and oblique. Antero-lateral angle obtuse, not produced. 



Large cheliped of male rough. Merus with granulated, rugose 

 lines outside, lower margin granulate. Carpus and palm tubercu- 

 lous outside. Oblique ridge leading from lower margin of inner sur- 

 face of palm tuberculate, but less prominent than in U. mordax; 

 space between crests coarsel}'- granulate, or tuberculate. Fingers 

 one and one-half times as long as palm, disposed much as in V. 

 mordax.^ but without a large tubercle at middle of jDoUex. 



