. Bulletin - United States National Museum. Science. 450 BULLETIN 129^ UNITED STATES NATIONAL MUSEUM spine which does not reach beyond the orbital border and two short spines behind the next article. The chelipeds attain in the male a considerable size and are nodose; arm spined above; hand long, cylindrical, and granulate. Fingers about half as long as palm, gaping for their basal half; a tooth on dactylus near its base. Measurements.—Length of large male (Cat. No. 5843) from tip of rostrum to tip of posterior spine, ; width, including spines, 93; length of horn ; length of cheliped,
. Bulletin - United States National Museum. Science. 450 BULLETIN 129^ UNITED STATES NATIONAL MUSEUM spine which does not reach beyond the orbital border and two short spines behind the next article. The chelipeds attain in the male a considerable size and are nodose; arm spined above; hand long, cylindrical, and granulate. Fingers about half as long as palm, gaping for their basal half; a tooth on dactylus near its base. Measurements.—Length of large male (Cat. No. 5843) from tip of rostrum to tip of posterior spine, ; width, including spines, 93; length of horn ; length of cheliped, 215 mm. Variations.—Sometimes (Cat. No. 25233) instead of dorsal tubercles there are a few (10 or 11) sharp spines. In the young the horns are straight and divergent, but less divergent than in the subspecies coelata; with age the horns grow proportionally longer and are separated by a smaller angle and their terminal halves may become parallel or even curve inward (5843) or downward (49902). Range.—From Georgia to Bahia, Brazil. Simon's Bay, Cape Colony (Miers). Shallow water to 35 fathoms. Material examined.—See table, pages 452-453. STENOCIONOPS FURCATA COELATA (A. MUne Edwards) Plate 164. Fig. 131.—STENOCIONOPS FURCATA (43084), MAXILLIPED, X Pericera coelata A. Milne Edwards, Bull. Soc. Philom., ser. 7, vol. 2, 1878, p. 224 (type-localities, 10 miles from the Idolos [error for "Jolbos"] Islands and near Havana, 175 fathoms; types in M. C. Z.). Pericera caelata A. Milne Edwards, Crust. R4g. Mex., 1879, p. 200,, pi. 15A, figs. 3-3c. Pericera cornuta (?) and Pericera, sp., Kendall, Bull. U. S. Fish Comm., vol. 9, 1889 (1891), p. 303. Pericera cornuta caelata Rathbun, Proc. U. S. Nat. Mus., vol. 15, 1892, p. 244. Stenocionops furcata coelata Rathbun, Bull. U. S. Fish Comm., vol. 20 for 1900, part 2 (1901), p. 73.—Hay and Shore, Bull. Bur. Fisheries, vol. 35, 1915-16 (1918), p. 460, pi. 39, fig. 3. Diagnosis.—Lateral marginal spines four. From 20 to
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