. Bulletin - United States National Museum. Science. THE GEAPSOID CEABS OF AMEEICA. 307 Salinas de Caldera, Boca del Jesus Maria; on mangroves; Jan., 1906; 1 male, 1 female (male is holotype) (32490); 1 female (3231G). Apr., 1905; 1 male (32317). SESARMA (HOLOMETOPUS) TAMPICENSE Rathbun, Plate 88. Sesarma (Holometopus) tampicense Rathbun, Proc. U. S. Nat. TNIus., vol. 47, 1914, p. 124, pi. 8, text-fig. 4 (type-locality, Tampico, Mexico; holotype male. Cat. No. 45794, ). Diagnosis.—Sides of front parallel. Palm finely granulate. Fin- gers gaping. Merus joints of legs converging slightly
. Bulletin - United States National Museum. Science. THE GEAPSOID CEABS OF AMEEICA. 307 Salinas de Caldera, Boca del Jesus Maria; on mangroves; Jan., 1906; 1 male, 1 female (male is holotype) (32490); 1 female (3231G). Apr., 1905; 1 male (32317). SESARMA (HOLOMETOPUS) TAMPICENSE Rathbun, Plate 88. Sesarma (Holometopus) tampicense Rathbun, Proc. U. S. Nat. TNIus., vol. 47, 1914, p. 124, pi. 8, text-fig. 4 (type-locality, Tampico, Mexico; holotype male. Cat. No. 45794, ). Diagnosis.—Sides of front parallel. Palm finely granulate. Fin- gers gaping. Merus joints of legs converging slightly from middle to distal end. Description.—Carapace perceptibly wider than long, of nearly even width throughout, though widening slightly behind. Surface coarsely punctate at the middle, finely punctate on the branchial and intestinal regions, the punctae more or less connected by fine grooves; surface of frontal region and antero-lateral angles finely granulate; postero-lateral grooves fine. Supra-frontal lobes deeply separated, the me- dian groove larger than the lateral grooves; mid- dle pair of lobes transversely arcuate; outer pair narrower, oblique, trending forward toward the orbit. Front relatively broad and low, about five times as wide as high, sides vertical, lower margin arcuate in front view, sinuous in dorsal view, surface concave in both directions. Up- per margin of orbit nearly straight, up to the short, acute tooth at the outer angle of the orbit. Merus of cheliped covered with granulated rugae on its outer face; lower outer margin with a well-marked subdistal tooth; tooth on upper margin nearly obsolete: inner margin denticulate, distally expanded and bearing a large tooth. Upper surface of carpus similar to outer surface of merus. Palm massive in the full-grown male, as high as its horizontal length, lower margin arcuate, upper margin marked by interrupted lines of granules; outer surface cov- ered with fine, depressed granules, inner surface with much la
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