Shell oblong, smooth, of au uniform light brown colour, whitish 

 within ; a narrow interrupted white band proceeds from the middle 

 of the margin of the outer lip and continues along the posterior edge 

 of the volutions to the apex ; a less defined band traverses the dor- 

 sum more anteriorly, and terminates at the middle of the inner side 

 of the aperture ; spire acuminated, comprising more than one half 

 the length of the shell ; volutions eight to nine, slightly convex, su- 

 ture a little elevated ; aperture rather wide, shining, broader poste- 

 riorly ; outer lip whitish, and thick externally, edge sharp, violaceous 

 for a little distance within, with six or seven linear denticulations ; 

 inner lip, a fine whitish varix extends from the curve of the aper- 

 ture to the anterior point of the channel ; within this varix, at its 

 centre, are five or six denticulations, closely set, parallel, prominent, 

 proceeding over the columella, whitish at their edges, the inter- 

 stices and the portion exterior to them being of a reddish brown 

 colour; channel projecting, narrow, slightly recurved, with a dark 

 violaceous colour vdthin ; a number of rather strong strife pass from 

 the inner side of the aperture to the edge of the anterior half of the 

 outer lip. 



Length, y^^ of an inch ; width, ^ of au inch. 



Hah. 1 Cab. Gaskoin. 



I have seen but one of this characteristic species : the aperture is 

 allied in form to that of Colmnhella Puella, Sowerby. It may be 

 convenient to readers to state, that the species Col. Puella is by acci- 

 dent, in the index of the 'Thesaurus Conchyl.' of Sowerby, juu., 

 entered as Col. Nympha. 



12. CoLUMBELLA Marquesa. Testa ohlongo-ovata, albicans; 

 anfractihns sex vel septeni ; 4 vel 5 posticis roseis, longitudi- 

 naliter striatis, anfractihns tribus anticis Icevibvs spiraliter 

 rvfescenti-brunneo lineatis ; spird acuminata, dimidium testee 

 teqvante ; aperturu mediocri rectiusculd ; labii externi margine 

 tenia postice marginato, extus incrassato, edentulo, lahio colu- 

 mellari Icevi nitido, margine crassiusculo elevato ; canali extus 

 transversim striato, brevi. 

 Varietas hujus testes major differt pro colore. 

 Shell oblong-ovate, of a dull white colour ; spire acuminated, form- 

 ing about one-half the length of the shell ; volutions six to seven, 

 which, vnth the last volution, the columellar side of the shell forms 

 an even convexity ; the first four or five whorls are of a rose or 

 bluish-pink colour, minutely longitudinally striated ; the others are 

 smooth, with somewhat distant fine brown lines, seven, eight, or so 

 in number, passing spirally and continuously from just within the 

 outer lip along the three last whorls, to the commencement of the 

 pink striated volutions ; aperture moderately wide and long, rather 

 straight ; outer lip sharp at its edge, forming a notch at its junction 

 with its next whorl, thickened externally, without denticulation ; 

 inner lip also edentulate, smooth, shining, externally forming a rather 

 thick, slightly elevated varix, which extends to the extremity of the 

 channel, and from the whole length of this varix fine striae pass over 



