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 49.3, width without 

 spines 43.2, least width between eyes 

 8.3, length of horn 5.1 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, U.S.N.M.). 



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 Anim., ed. 2, vol. 4, 1829, p. 



58 (described, but name not adopted, by Latreille as a division of the 



subgenus Pisa; only species, and therefore type, Pisa heros (Herbst). — 



Milne Edwards, Hist. Nat. Crust., vol. 1, 1834, p. 314.— A. Milne 



Edwards, Crust. Reg. Mex., 1875, p. 86. 



Carapace oblong-oval. Rostrum with two slightly divergent horns. 



Preorbital spine stout, postorbital spine small, dentiform, remote 



FlO. 100.— MiCROPISA VIOLACEA (55769), MAX 

 ILLIPED, X 6 



