252 MOLLUSC A. 
Figure 318, the animal as in motion. 
From the above animals, we may very well deduce the characters 
of the mollusk of this genus. 
Animax having an expanded foot, nearly as broad as long, escut- 
cheon-shaped, the anterior angles a little dilated, obtuse posteriorly, 
the lateral edges delicately undulate. Siphon very long; head very 
small, with very short tentacles, bearing the eyes at the tip; mouth 
concealed between the head and foot, which latter advances before the 
head about as much as it extends behind it, and rises into the shell on 
quite a stout pedicle. 
Colours all pale watery-white, without variegation, or merely tinted 
orange, bluish, or cream-colour. 
BuccinuM VELATUM (Gould). 
Testa solida, ovato-lanceolata, levis, polita, ivido-violacea, altido-reticu- 
lata, versus lubrum pallescens, et lineolis rubiginosis cincta: sptra 
acuto-conica, anfractibus septem ad octo convexiusculis, serie suturali 
gemmularum coronatis, ultimo trientes duos longitudinis teste ade- 
quante et ad basim spiralter striato: apertura ovals, postice canali- 
culata; labro acuto, extrorsum incrassato, intus decem-sulcato ; sini 
stphonali obliquo, profundo, castaneo-tincto. 
Buccii:um (Bullia?) velatum, Goutp; Proceed. Boston Soc. Nat. 
Hist., i. 151. June 1850. 
Suet solid, smooth and polished, oblong-ovate, somewhat pyrami- 
dal, with four or five revolving basal striae, and a sutural delicate 
circlet of papille. Colour a slaty, livid violet, or pale plum-colour, 
with an underlying network of white points arranged in quincunx, 
only perceptible on careful observation ; the sutural vitta is paler, the 
indented portions only being dark ; the region approaching the lip also 
grows paler, and is marked by numerous rusty-coloured, revolving 
lines; this portion is also plaited; spire elongated, whorls seven or 
eizht, very slightly convex, the last one two-thirds the length of 
the shell, enlarging nearly to the base: aperture less than half the 
