VENDS* 533 
4. Vemis reflexa. Reflected Venus . 
Laskey , JVern. Soc. i. pi. 8. f. 1. 
Shell somewhat orbicular, slightly produced at the ante¬ 
rior side, a little convex, thin, with thin raised transverse 
ridges turning upwards, hut which at the anterior margin 
become more expanded and undulated, and turn a little 
downwards in a contrary direction towards the front mar¬ 
gin; between the ridges, and on the expanded plates are 
very fine faint longitudinal lines which are hardly visible to 
the naked eye : color pale yellowish-brown with obscure 
reddish rays, which sometimes appear in arrow-shaped 
spots: beaks turned to one side, with a long narrow heart- 
shaped depression under them: inside white, with the mar¬ 
gin finely notched: hinge with two of the teeth slightly 
cloven: length an inch ; breadth rather more. 
It differs both from V. verrucosa, and V. Casina, in the 
broad membranaceous folds of the anterior margin, which 
reflect a little backwards, and the fine longitudinal striae 
upon and between them : it is also of a more oblong shape, 
with a lanceolate depression on the posterior slope, and is 
about half the size. 
Scotland, south of Devon, and Bantry hay. v. v. 
5. Venus laminpsa. Laminar Venus. 
Laskeij t JVern . Soc. i. pi. 8. f. 16. 
Shell rather oval, elongated and running nearly straight 
on the cartilage side, yellowish-white, with numerous thin 
laminar, or sometimes rather rounded, transverse ridges, 
very slightly bending up towards the binge, and striate lon¬ 
gitudinally between them ; these striae are very fine, and 
r.ppear sometimes only on the body of the shell, and some¬ 
times only in the region of the hinge: beaks pointed, turned 
much to one side, with a broad heart-shaped depression un¬ 
der them; inside white, with the margin finely notched : 
hinge with four teeth, the outer-one above the depression 
in one valve obsolete, or formed only by a cavity for the 
reception of the correspondent tooth in the opposite valve : 
length nearly an inch ; breadth an inch and a quarter. 
It has much the outline of V. Gallina, but is more 
elongated on the cartilage side, is marked with fine trans- 
x 3 verse 
