. Bulletin - United States National Museum. Science. THE GRAPSOID CRABS OF AMERICA. 301 Diagnosis.—Transverse, nearly smooth. Front much more than half width of carapace. Merus of third leg more than two and one- half times as long as wide. Description.—Carapace distinctly transverse, of nearlj'' uniform width throughout, regions well marked, surface nearly smooth, punc- tate, toward the front rough with squamiform granules. Supra- frontal lobes well marked, the inner pair a little wider. Front four times as wide as high, widening beloAv, lower edge sinuous, somewhat four-lobed in dorsal view.
. Bulletin - United States National Museum. Science. THE GRAPSOID CRABS OF AMERICA. 301 Diagnosis.—Transverse, nearly smooth. Front much more than half width of carapace. Merus of third leg more than two and one- half times as long as wide. Description.—Carapace distinctly transverse, of nearlj'' uniform width throughout, regions well marked, surface nearly smooth, punc- tate, toward the front rough with squamiform granules. Supra- frontal lobes well marked, the inner pair a little wider. Front four times as wide as high, widening beloAv, lower edge sinuous, somewhat four-lobed in dorsal view. Outer orbital angle acute. Chelipeds heavy. Only the lower edge of the merus has a sub- distal notch, upper edge sharp, inner edge irregularly dentate, with a triangular laminar expansion on the distal half. Inner angle of wrist rounded. Palm nearly twice as high as its superior length. 1) {\ ^ x The outer surface is covered with /^v—%N ; ] the same scabrous granules that form short transverse lines on arm and wrist; near the upper margin , ., ,. , , the granules are arranged in ob- / \ / lique parallel lines, but without '^ ^ ' ^ ' forming the strong ridges which characterize the subgenus Parase- sarma; inner face coarsely granu- a h lous with a short prominent ridge ^'«- i49. —sesarma (holometopds) ^ CINEUEDM, MALE (15072). a, ABDO- near the distal end. Pollex elon- men, x zi; b. right appendage of gate-triangular; dactylus thickened ^^^-^"^ segment of abdomen, ven- at base and somewhat dorsally ilat- tened, a well marked concavity below at base. The fingers gape nar- rowly, and the largest tooth of their applied edges is at the middle of the pollex. Legs rather narrow, a sharp spine near the end of the merus; third pair over twice as long as carapace, its merus a little more than two and one-half times as long as wide. Abdomen of male broadlj'^ triangular; the appendages of the first segment are hairy on the outer side of their extremities. Measure^nents.—Ma
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Keywords: ., bookauthorun, bookcentury1800, bookdecade1870, booksubjectscience
