strongly marked, interrupted, broad, dark reddish brown bands, the 

 anterior being the less deeply coloured, the markings being rather 

 crescentic, with the horns pointing towards the aperture becoming 

 more arrow-shaped advancing onwards ; the anterior band extends 

 from the fore part of the outer lip to the middle of the inner side of 

 the aperture, the second from the posterior part of the edge of the 

 outer lip over the dorsum at the shoulder, and spirally on the centres 

 of the volutions to the apex ; at the superior portion on the aperture 

 side of each marking is an opake white colouring ; spire acuminated, 

 seven to eight whorls ; at the suture, spirally on to the apex, is a fine 

 whitish varix having interrupted brovra markings along its entire 

 course ; aperture rather straight and broad, widening posteriorly ; 

 outer lip thick, sharp at its edge, orange-coloured at its inner border, 

 where there are four or five slight denticulations ; inner lip has a 

 finely denticulated ridge at its outer edge of an orange colour, within 

 it is an angular projection forming the commencement of the chan- 

 nel ; the whole external shell is cancellated, the transverse striae being 

 much stronger than the longitudinal, and especially anteriorly ; peri- 

 treme of a light orange colour, rather obtusely angular posteriorly ; 

 channel rather short and moderately wide. 



Length -^^ of an inch ; width, ^L. of an inch. 



Hab. ? Cab. Gaskoin. 



4. CoLXTMBELLA LEUCOSTOMA. Testtt ovata, albicans, nitens, 

 postice fascid laid brunned spirali ornata; apice albicante di- 

 midio antico anfractfls ultimi albido ; spird acuminata, anfrac- 

 tibus septem ; a'perturd guldque albis latiusculis, illd postich 

 subquad7-atd, labia externa intus subdenticulata, dentibus sex 

 posticis maja7'ibus ; canali brevi latiusculo. 

 Shell ovate, shining, of a whitish colour, having a broad brown 

 band occupying the posterior half of the anterior volution and the 

 entire of the sixth, fifth and fourth, except at their posterior edge, 

 which is white, the brovni band terminating in an undefined line near 

 the suture ; the three apicine whorls are white, with very fine lightly 

 coloured linear markings, and in like manner is the white anterior 

 half of the last whorl finely but irregularly streaked ; spire acumi- 

 nated, seven volutions, which constitute the greater half of the length 

 of the shell ; aperture white, as is also the interior, rather broad, 

 somewhat square posteriorly ; outer lip gradually curved inwards, 

 having within it about six slight denticulations, the posterior being 

 the larger ; inner lip smooth, spiral ; a few fine striae extend obliquely 

 forwards over the dorsum of the channel from the slight varix at its 

 outer edge ; channel short, rather broad. 



Length, ^^-^ of an inch ; vddth, y^^ of an inch. 

 Uab. ? Cab. Gaskoin. 



5. CoLUMBELLA Pacifica. Testa oblongo-ovata, lacteo-opaca, 

 maculis irregularibus distantibus rufescenti-brunneis ornata ; 

 intus alba; spird acuminatd, anfractibus canvexis septem vel 

 acta postice abtusissimh coronatis ; aperturd lata rectiusculd ; 



