112 



5. Col. labiosa. (pi. xxxvi, f. 8, 9.) Sow. Gen. 



Col. testa ovato-subtrigonali^ lata, laevigata, fusca, albido- 

 punctulata, epidermide tenui induta ; spira brevi, acuminataj 

 anfractibus 6, ultimis tribus postice obsolete unisulcatis, ul- 

 timo antice sulcis transversis obsoletiusculis nonnullis, postice 

 rotundato-angulato ; apertura longitudinali, flexiioso ; labio 

 externo extiis margine acutiusculo, fusco, intiis albo, varice 

 longitudinali denticulato; labio interno postice callifero, 

 antice intus tuberculo oblongo columellari instruct©, medio 

 eroso. 



Shell ovato-sub triangular, broad, smooth, fuscous, with 

 whitish dots and transverse blackish close-set slender lines, 

 covered with a thin epidermis ; spire short, acuminated, with 

 six volutions, of which the three last have an obsolete pos- 

 terior groove and the last is posteriorly rotundato-angular and 

 furnished anteriorly with several rather obsolete transverse 

 grooves ; aperture longitudinal, flexuous ; outer lip externally 

 with a rather sharp fuscous border, white within, with a longi- 

 tudinol denticulated varix ; inner lip posteriorly callous and 

 furnished within with an oblong columellar tubercle in front. 



Found abundantly at St. Elena, W. Columbia, H. Cuming. 



6. Cob Harpiformis. Sow. (pi. xxxvi, f. 10, 12,) Z. P., 

 Part ii. p. 113. 



Col. testa ovato-subtrigona, nigra, albido-maculata ; epider- 

 mide tenui fulva induta ; spira brevi ; anfractibus 6 — 7} 

 marginibus crenulatis, ultimo trigonali, longitudinaliter cos- 

 tato ; apertura elongata, superne in canalem elongatam 

 producta ; labio externo incrassato, jnflexo, intus denticulato ; 

 canali sub-recurva. 



Shell ovate sub-triangular black, speckled with whitish 

 and furnished with a thin fulvous epidermis ; spire short, of 

 6 or 7 volutions, with crenulated edges; last volution tri- 

 angular, longitudinally ribbed ; aperture elongated and pro- 

 duced into a lengthened canal posteriorly ; outer Up thick- 

 ened, inflected, internally denticulated; canal slightly 

 recurved. 



Found on dead shells in the Bay of Panama, at a depth of 

 ten fathoms, H. Cuming. 



7. Col. uncinata Sow. (pi. xxxvi, f. 13. 14.) Z. P. ii. 

 114. 



Col. testa oblonga, utrinque acuminata, fulva, fascia centrali 

 albido-articulata ; anfractibus 6— 7j superioribus parvis, sub- 



