112 COLUMBELLA. 



C. HUMEROSA, Carpenter. 



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

 tudinal ribs and sharp revolving strije ; white with fuscous lines 



or maculations. Length, -26 inch. 



Acapulco. 



Said to possess the sculpture of RhizocJieilus and the tall spire 

 oi' A nachis, yet to belong, apparently, to the restricted typical 

 genus. Unfigured, and unknown to me. 



C. BoiviNi, Kiener. PI. 4(i, figs. 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, -tS-l inch. 



West Coast of Central America. 



C. Sowerbyi, Dnclos (hg. 11), appears to be a not fully grown 

 specimen of this species. 



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



Shell oblong, thick, white, marbled with brown ; spire turret ed ; 



M'horls five, rather swollen, decussately sculptured into numerous 



tubercles; aperture whitish. Length,*4 7 mill. 



Australia. 

 C. CHLOROSTOMA, Sowb. I'l. 4(), fig. 13. 



Shell yellowish white, with chestnut bands spotted with 1 thick 

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



Hah/tat unknown. 

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



C. MiTRATA, Meuke. PI. 46, fig. 14. 



Longitudinally ribbed, interstices towards the base latticed ; 

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



A^lstraUa> 



I am not acquainted with this species. 



C. DucLosiANA, Sowb. PI. 46, fig. 15. 



Shell longitudinally ribbed, obsoletely striate; dark brown, 

 with obsolete bands under a dusky epidermis ; aperture viola- 

 ceous or brown. Length, 15-18 mill. 



Malacca, Java, Philippines. 



