. Bulletin - United States National Museum. Science. 304 BULLETIX 120. UNITED STATES NATIONAL MUSEUM border are five distant spines, two branchial (paired), the outer one the strongest of all, and one intestinal. A transverse row of four gastric spines, a median mesogastric spine; a small cardiac tubercle or spine; three hepatic spines. Chelipeds of adult male very little longer than carapace, stout; hand swollen, slightly narrowed distally, fingers slender, widely gaping except at tips, a low tooth on dactylus at basal third. Ambu- latory legs stout, graduated, the first pair a little longer
. Bulletin - United States National Museum. Science. 304 BULLETIX 120. UNITED STATES NATIONAL MUSEUM border are five distant spines, two branchial (paired), the outer one the strongest of all, and one intestinal. A transverse row of four gastric spines, a median mesogastric spine; a small cardiac tubercle or spine; three hepatic spines. Chelipeds of adult male very little longer than carapace, stout; hand swollen, slightly narrowed distally, fingers slender, widely gaping except at tips, a low tooth on dactylus at basal third. Ambu- latory legs stout, graduated, the first pair a little longer than chelipeds. Variations.—A half-grown male from west Africa has the spines relatively shorter or reduced to tubercles, legs slenderer than in full- grown male, but cheliped well developed. Measurements.—^Male (334, Mus. Paulista), total length of carapace 51, total width , width without spines , least width between eyes , length of horn mm. Range.—Brazil: Provinces of Rio de Janeiro, Sao Paulo, and Santa Catharina. Previously known only from West Africa (Sahara to Angola) and the Cape Verde Islands; shallow water to ISO meters (98 fathoms). Material examined.—• Serra de Masahe, Province of Rio de Janeiro, Brazil; 1912; E. Garbe, collector; from Museu Paulista; 1 male (Cat. No. 55769, ). Santos, Province of Sao Paulo, Brazil; 1896; Bisego, collector; lent by Mus. Paulista (Cat. No. 334). Desterro, Province of Santa Catharina, Brazil; January, 1866; Fritz Muller; 1 small male (2052, M. C. Z.). Off Sahara, Africa; lat. 21° 47' N.; long. 19° 47' W.; 140 meters; green muddy sand; July 13, 1883; station 92, Talisman; 1 male (22969) received from Paris Museum. Genus CHORINUS Latreille Charineus (Leach MS.) Desmarest, Diet. Sci. Nat., vol. 28, 1823, p. 266; Consid. G6n. Crust., 1825, p. 153; nomen nudum (neither described nor adopted). Chorinus (Leach MS.) Latreille, Encyc. Meth., Hist. Nat., Entom., vol. 10, 1825, pp. 139 and 699; in Cuvier, Regne
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