66 Zoological Society. 
but with much less thickness, over the arch of the channel, and with 
the first or anterior plait; channel broad and deep, obtuse. 
Long, 6°, of an inch; wide, 3°. of an inch. 
Hab. 
Cab. Cuming. 
The only specimen I have seen of this peculiar species is not in fine 
condition ; when so, it must be very beautiful. It differs from Mar- 
ginella Faba, Linn., in the evenness of the shoulders of the whorls, 
its less attenuated form, and the linear markings of the margin, &c. 
MARGINELLA PULCHERRIMA. Marg. testd oviformi, fulvescente, 
JSasciis albis quinque, angustis, transversis, maculis linearibus 
nigris, in centros fasciarum conspicuis ; interstitiis fascid prima 
ad secundam fasciam, tertidque ad quartam, lineis plurimis 
tenuissimis fulvescentibus longitudinalibus notatis; apertura 
albd, latiusculd ; columelldé quinque-plieatd ; labio tenui ; apice 
distineto. 
Shell oviform, shining, of a light fawn colour, with five transverse, 
distinct, narrow, even, uninterrupted white bands surrounding the 
shell, from the edge of the lip, the two anterior terminating at the 
columellar edge of the aperture, the others proceeding inwards over 
the columella ; the posterior is always the least distinct (conspicuous) : 
floating, as it were, in the centre of these white bands, are very dark- 
brown or black, equidistant, linear markings or streaks, and similar 
markings in colour and form radiate obliquely on the slight ridge 
which encircles the spire: the spaces of the shell between the an- 
terior band and the second, and between the third and the fourth, 
are occupied by numerous, fine, longitudinal and parallel light-brown 
lines, the other spaces between the bands are irregularly marked with 
the same colouring, varying in individual specimens, in intensity of 
coloration, especially in the middle space (that between the third and 
the fourth bands); base round ; aperture white, rather wide, flexuous 
posteriorly ; five plaits on the columella; the three anterior project ; 
the first is continuous with the inner side of the channel, the second 
takes a similar direction behind it, passing obliquely over the base of 
the shell, and next this is a white varix following outside the aperture 
a similar direction, on which are four or five dark-brown spots; lip 
thin, no margin; apex perceptible. 
Long, 2°, of an inch; wide, 24, of an inch. 
Hab. West Indies. 
Cab. British Museum, Metcalfe, Gaskoin, &c. 
Differs from the Voluta catenata of Montagu* (Marginella of 
others) in having but four distinct, and one rather obscure, bands; im 
these being uninterrupted, and the linear markings floating in their 
centres, and not linking interrupted or disjointed portions of the bands, 
as in M. catenata; in the dark colour, and the more oviform shape. 
I have hitherto found this species among parcels of Marginella sagit- 
tata of Hinds. 
* Which I believe to be a West Indian production only, and not as Montagn 
was led to suppose, a British species. I have found the Marginella catenata fre- 
quently among the small West Indian Marginellz, as have many others, and from 
no other source did Montagu himself obtain it. 
