. Bulletin - United States National Museum. Science. 290 BULLETIN 120, UNITED STATES NATIONAL MUSEUM outer maxillipeds has a transverse distal margin, its outer angle is strongly produced sideways, its inner angle is deeply notched. In the full grown male the chelipeds are longer and stouter than the legs; chela almost cylindrical; fingers in contact in the distal half, not hollowed at tips. Contains only one species. NIBILIA ANTILOCAPRA (Stimpson) Plates 102, 103 and 239 Herbstia . . Schramm, in Desbonne and Schramm, Crust. Guadeloupe, 1867, p. 17, pi. 7, fig. 23. Pisa antilocapra Stimpson, B
. Bulletin - United States National Museum. Science. 290 BULLETIN 120, UNITED STATES NATIONAL MUSEUM outer maxillipeds has a transverse distal margin, its outer angle is strongly produced sideways, its inner angle is deeply notched. In the full grown male the chelipeds are longer and stouter than the legs; chela almost cylindrical; fingers in contact in the distal half, not hollowed at tips. Contains only one species. NIBILIA ANTILOCAPRA (Stimpson) Plates 102, 103 and 239 Herbstia . . Schramm, in Desbonne and Schramm, Crust. Guadeloupe, 1867, p. 17, pi. 7, fig. 23. Pisa antilocapra Stimpson, Bull. Mus. Comp. Zool., vol. 2, 1871, p. 110 (type-localities, off Carysfort Reef, 52 and 60 fathoms; off Alligator Reef, 118 fathoms; types not extant).—A. Milne Edwards and Bouvier, Mem. Mus. Comp. Zool., vol. 47, 1923, pi. 11, figs. 4 and 5; pi. 12, fig. 3, text-fig. 19. Pisa praelonga Stimpson, Bull. Mus. Comp. Zool., vol. 2, 1871, p. lH (type-localities, off Alligator Reef, 118 fathoms; off Tennessee Reef, 124 fathoms; types not extant).—A. Milne Edwards and Boxjvier, Mem. Mus. Comp. Zool., vol. 47, 1923, p. 384, pi. 11, figs. 6 and 7; pi. 12, fig. 4. Nibilia erinacea A. Milne Edwards, Crust. R6g. Mex., 1878, p. 133, pi. 25 (type-locality, "Guadeloupe, dans le Canal de Saintes et a Marie-Galante, sur la cote de Capesterre;" from fish-traps set in rather deep water; type in Paris Mus.). Diagnosis.—Rostrum deeply bifurcate; carapace multispinous; orbit with a spine or tooth between preocular eave and postocular cup. Description.—CuT&psice very spinous. Rostrum horizontal, un- divided at base, but bifurcate for the greater part of its length, the horns varying from three-fifths to four-fifths of the total length of rostrum. Preorbital spine ascending, slightly curved, not as advanced as the base of the horns; behind it a small spine on the supraocular eave; a triangular spine or tooth on the supraorbital border; postocular cup terminating in a spine. A sh
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