COLUMBELLA. 105 



C. CASTANEA, Sowb. PI. 42, fig. 15. 



Shell with a shallow channel around the suture, defined by an 

 angled or almost ribbed shoulder; lower half of body-whorl 

 contracted ; chestnut-brown, spotted with white, aperture tinged 

 with orange within. Length, '85 inch. 



Galapagos Is.; W. Coast of Central America. 



1 have considerable doubt whether this is not a variety only 

 of the preceding species ; it is considerably smaller, more 

 contracted, with more defined shoulder, and colored interior. 



C. FASCJATA, Sowb. PL 42, figs. 16-18. 



Shell large nnd thick, oval, slightly shouldered; brown, spotted 

 with white, tlic spots sometimes merging into irregular zigzag 

 longitudinal markings, occasionally obscurely white-banded at 

 the suture and periphery; teeth of columella and outer lip 

 sometimes tinted with red. LengVjii, 1'25 inches. 



Java. 



This species is not so gibbous as those which precede it, and 

 has heavier teeth ; the spire is also more convexly elevated. G. 

 Javacensis, Gaskoin (fig. 18), is probably a faded specimen of 

 fasciata. 

 C. FUSCATA, Sowb. PL 42, tigs: 19-21. 



Shell smooth, oval ; chestnut-dotted and spotted irregularly 

 with white, and with white, triangular sutural markings, con- 

 tinued on the spire; epidermis light olive, very thin, smooth, 

 translucent ; aperture light purple. Length, *T5-*9 inch. 



Galapagos Is.; West Coast of Central America to 



Cape St. Lucas, L. California; Mazatlan. 



The synonyms are G. meleagris, Duclos (fig. 20), C. nodalina, 

 Duclos (fig. 21), a specimen with epidermis, and G. pallescenx, 

 Wimmer. 



C. SONSONATENSIS, Morch. 



Like C. fuscata, Sowb., but narrower, with shorter spire, suture 

 obsoletely margined, earlier whorls costellate, lip thickened and 

 flattened, with seven teeth, columella five-sulcate. ' 



Length, 8'25 mill. 



W. Coast of Central 'America. 



A doubtful species, described from a single specimen, and not 

 figured. 

 14 



