118 VENERIDZ. 
united, of much the same size, rufous around the orifices; the 
upper almost plain or with a few scalloped points ; the branchial 
has eight short dull rufous cirrhi. The foot is very large, 
occupying nearly the ventral range, and always presents itself 
as of a securiform figure; the heel is rather slender and 
bluntly pomted, but the rest of the foot can sufficiently pro- 
tract itself to represent a thick, short, strong, broad lmgui- 
form organ; its pure white colour is relieved by beautiful 
vertical lines of brilliant snow-white. There are a pair of pale 
brown gill-plates on each side of what are called suboval 
figures, which in this case stand thus :—the dorsal attachment 
is linear, the free edge curved, expanding posteally in a 
rounded form, and attenuating as it approaches the buccal 
orifice ; the upper lamina does not cover the under one; both 
show a mixture of coarse and fine striz, the larger being pro- 
bably the inter-branchial tubes, and the smaller the parallelo- 
grammic meshes. On each side there are a pair of short tri- 
angular palpi, strongly striated transversely within, and less so 
on the outward surface. The liver is brownish-green. The 
animal is shy and apathetic; the locomotion consists m 
screwing the shell ou its axis, and turning it from one side to 
the other. 
In the coral zone at Exmouth. 
V. vincta, Pulteney et nobis. 
Artemis lincta, Poli et aliorum. 
, Brit. Moll. i. p. 431, pl. 28. f. 5, 6. 
This species has not occurred alive, but fresh shells are 
frequently taken with the last species. 
PULLASTRA, Sowerby. 
P. PULLASTRA, nonnull. et nobis. 
Venus pullastra, Auctorum. 
V. perforans, Auctorum. 
Tapes pullastra, Brit. Moll. 1. p. 382, pl. 25. f. 2, 3; (animal) pl. L. 
f£.5 & 5a. 
Animal thick, oblong, of the palest bluish-white; mantle 
