112 COLUMBELLA. 



C. HUMEROSA, Carpenter. 



Shell small, turreted, with elevated spire, distant rounded longi- 

 tudinal ribs and sharp revolving striae ; white with fuscous lines 



or maculations. Length, '26 inch. 



n Acapulco. 



Said to possess the sculpture of Rhizocheilus and the tall spire 

 of Anachis, yet to belong, apparently, to the restricted typical 

 genus. Unfignred, and unknown to me. 



C. BOIVJNI, Kiener. PI. 46, tigs. 10, 11. 



Shoulder of whorls nodulous, with sometimes a second row of 

 smaller nodules on the body-whorl, lower part with revolving 

 striae; dark chocolate, nearly black, covered by minute white 

 spots ; aperture white, the lips stained with chocolate. 



Length, '75-1 inch. 



West Coast of Central America. 



C. Sowerbydj Duclos (iig. 11), appears to be a not fully grown 

 specimen of this species. 



C. PECUSSATA, Sowb. PL 46, fig. 12. 



Shell oblong, thick, white, marbled with brown ; spire turreted ; 

 whorls fi ve, rather swollen, decussately sculptured into numerous 



tubercles; aperture whitish. 'Length, 17 mill. 



Australia. 

 C. CHLOROSTOMA, Sowb. PI. 46, iig. 13. 



Shell yellowish white, with chestnut bands spotted with black 

 on the ribs; interior orange-brown. Length, 16 mill. 



Il<il>iiat unknown. 

 Published by Sowerby many years ago, and not since identified. 



C. MITRATA, Menke. PL 46, tig. 14. 



Longitudinally ribbed, interstices towards the base latticed ; 

 yellowish, with two broad chocolate bands. Length, 10-15 mill. ? 



Australia, 



I am not acquainted with this species. 



C. DUCLOSIANA, Sowb. PL 46, fig. 15. 



Shell longitudinally ribbed, obsoletely striate ; dark brown, 

 with obsolete bands under a dusky epidermis ; aperture viola- 

 ceous or brown. Length, 1&-18 mill. 



Malacca, Java, Philippines. 



