. Bulletin - United States National Museum. Science. 440 BULLETIN 54, TTNITEI) STATES NATIONAL MUSEUM. 70. Genus STENETRIUM Haswell. Only o' With characters of family. ANALYTICAL KEY<' TO THE 8PECIES OF THE CEXUS STENETRIUM. Terminal segment of the }:)ody armed on each side with five sharp teetli on the lateral margin. First pair of legs with the upper distal angle of the fifth article produced in a long process Stenetrium serrntum Hansen '. Terminal segment of the body with only one tooth at the notch on the lateral margin on- each side. First pair of legs with the upper distal angle


. Bulletin - United States National Museum. Science. 440 BULLETIN 54, TTNITEI) STATES NATIONAL MUSEUM. 70. Genus STENETRIUM Haswell. Only o' With characters of family. ANALYTICAL KEY<' TO THE 8PECIES OF THE CEXUS STENETRIUM. Terminal segment of the }:)ody armed on each side with five sharp teetli on the lateral margin. First pair of legs with the upper distal angle of the fifth article produced in a long process Stenetrium serrntum Hansen '. Terminal segment of the body with only one tooth at the notch on the lateral margin on- each side. First pair of legs with the upper distal angle of the fifth article rectangular, without jjrocess. b. In the male the lower margin of the hand has its proximal half concave, and at the distal end a low broad process, with three or four teeth nearly equal in size placed in a convex line. In the female the angle between the palmar and the lower margin of the hand measures about 110°; the hand is a little moi-e than i; as long as deep Stendrimit ocridentale Hansen //. In the male the lower margin of the hand has its proximal half convex, and at the distal end two processes separated by a rather deep incision; each process terminates in two teeth. In the female the angle between the palmar and the lower margin of the hand measures about 125°; the hand is twice as long as deep Stenetrium stebbingi Richardson b'''. In the male the lower margin of the hand has its proximal half convex, and at the distal end a narrow^ moderately long process, with the end bifurcate, and sometimes besides a feeble tooth on its proximal margin. In the female the angle between the palmar and the lower margin of the hand measures less than 100°, and the hand is a little more than | as long as deep. Stenelriu)!! (intillenfte Hansen STENETRIUM SERRATUM Hansen. Stenetrlitiii. xirnitvm Hansen, Proc. Zool. Soc. London, 1905, II, Pt. 2, ])p. o28-;)24, 1)1. xi\, figs. 3a-8d; pi. xx, fig. la. Locality.—St. Thomas, West Fii;.-197.—Stenetrium sk


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Keywords: ., bookauthorun, bookcentury1800, bookdecade1870, booksubjectscience