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, acuminata, 

 anfractibus 6, ultimis tribus postice obsolete unisulcatis, ul- 

 timo antice sulcis transversis obsoletiusculis nonnullis, postice 

 rotundato-angulato ; apertura longitudinali, flexuoso ; labio 

 externo extus margine acutiusculo, fusco, intiis albo, varice 

 longitudinali denticulato ; labio interno postice callifero, 

 antice intiis tuberculo oblongo columellari instructo, medio 

 eroso. 



Shell ovato-subtriangular, 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- 

 tudinal denticulated varix ; inner lip posteriorly callous and 

 furnished within with an oblong columellar tubercle in front. 



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



6. Col. 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, inflexo, intiis 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 lip 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 — 7, superioribus parvis, sub- 



