4 
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 brown 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 strize 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 4°, of an inch; width, ;23, of an inch. 
Hab. 2? Cab. Gaskoin. 
PHOLOT/ PE 4. CoLUMBELLA LEUCOsToMA. Testa ovata, albicans, nitens, 
posticée fascid latd brunned spirali ornata; apice albicante di- 
midio antico anfractis ultimi albido ; spird acuminatd, anfrac- 
tibus septem; aperturd guldque albis latiusculis, illd posticeé 
subquadratd, labio externo intus subdenticulato, dentibus sex 
posticis majoribus ; 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 brown band terminating in an undefined line near 
the suture ; the three apicine whorls are white, with very fine lightly 
es 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 strize extend obliquely 
| forwards over the dorsum of the channel from the slight varix at its 
outer edge; channel short, rather broad. 
: Length, 535, of an inch; width, ;13, of an inch. 
: Hab. ? Cab. Gaskoin. 
: 
5. CotumBetta Pacirica. Testa oblongo-ovata, lacteo-opaca, 
maculis irregularibus distantibus rufescenti-brunneis ornata ; 
intus alba; spird acuminatd, anfractibus convexis septem vel 
octo posticé obtusissimée coronatis ; aperturd latd rectiusculd ; 
