THE CANCROID CRABS OF AMERICA 175 



Range. — Chile: Valparaiso (Milne Edwards and Lucas); Curanipe, 

 province of Maule (Porter). Uruguay. 



Material examined. — 



PATAGONIA— Dr. Wilson; 1 male (Phila. Acad. Nat. Sci.), 

 labeled "type." 



URUGUAY.— Rio de la Plata, below Montevideo; lat. 35° 12' S., 

 long. 55° 30' W.; 7 fathoms; February 29, 1872; station 25, Hassler 

 expedition; 3 males, 3 females, cotypes (18509), received from Mus. 

 Comp. Zool.; 12 male and female (3961, M.C.Z.). 



Genus' BELLIA Milne Edwards 



Bellia Milne Edwards, Ann. Sci. Nat., ser. 3, Zool., vol. 9, 1848, p. 192; type, 

 B. picta Milne Edwards. — Dana, U. S. Expl. Exped., vol. 13, Crust., pt. 1, 

 1852, p. 403; part 2, 1853, p. 1428.— Bouvier, in A. Milne Edwards and 

 Bouvier, Mem. Mus. Comp. Zool., vol. 47, 1923, pp. 308 and 309. 



Carapace elongate, oblong, high, anteriorly dentate. Ocular 

 peduncles short. Pterygostomian region prominent, well advanced 

 beyond the margin of the front and forming below the orbit a thin 

 plate which underlaps the infero-orbital tooth. Between this tooth 

 and the outer frontal tooth there is wedged a smaller triangular tooth 

 which represents the basal article of the antenna. From the posterior 

 half of the upper surface of the latter springs the movable part of the 

 peduncle which is free, directed obliquely forward and consists of a 

 stout article followed by a more slender one, on the end of which there 

 is a minute lump, the rudiment of a flagellum. Outer maxillipeds 

 similar to those of Corystoides except that the merus is not notched 

 at the antero-internal angle. Legs stout, dact\^li dilated. Male 

 abdomen subtriangular, short and broad. 



Contains only one species. 



BELLIA PICTA Milne Edwards 



Plate 79 



Bellia picta Milne Edwards, Ann. Sci. Nat., ser. 3, Zool., vol. 9, 1848, p. 192 

 (type-locality, Bay of Saint Nicolas, Peru; type in Paris Mus.). — Porter, 

 Revista Chilena Hist. Nat., vol. 22, 1918, p. 52; Antofagasta. 



Diagnosis. — Anterior half of carapace not wider than posterior half; 

 no conspicuous granules. Pterj^gostomian region advanced beyond 

 the line of the front. Dactjdi of legs enlarged. 



Description. — Regions fairly well indicated. Surface finely and 

 densely granulated. Antero-lateral margin cut into six very irregular 

 blunt teeth of which the first (or orbital) and second are distant and 

 the third and sixth are reduced. Behind the teeth a raised granulate 

 line is continued along the margin of the middle third of the carapace 

 and is punctuated by several elongate tubercles. Lower side margins 

 of carapace fringed with hair. Teeth of front subequal, the median 

 slight^ surpassing the lateral. Eves small, well protected by the 



