VENUS.- 
244 
the Roll of Battle Abbey, the ancestor of this very respect¬ 
able naturalist is denominated “De monte acuto,” forming 
by a natural ellipsis Montacutus, corruptly anglicized into 
Montagu. With this chain of thought we have, in our Bri¬ 
tish Fauna, exchanged the name of Cvclopterus Montagui, 
as given by Mr. Donovan, into C. Montacuti. And Mr. Mon¬ 
tagu has himself admitted the principle, by calling his shell 
Venus Danmonia, and not V. Devonia. 
On the Dunbar coast: very rare. 
C. Ovaly and mostly angular on the cartilage side , 
26 to 35. 
26. Venus decussata. Parr Venus. 
Lister , pi. 423. f. 271— Pennant * pi. 60, middle fig.—- 
Da Costa , pi. 14. f. 4— Donovaji, pi. 67— Linn. Trans. vi> 
pi. 17. f. 1 i, 12, and viii. pi. 2. f. 6— Dorset Cat. pi. 6. f. 4. 
Shell strong, convex, much produced at the cartilage end, 
where it is somewhat angular and as if cut off, irregularly 
striate longitudinally, and crossed by transverse liues, which 
are stronger towards the sides, especially the angular one, 
where it puts on a coarse wart-like appearance: color nisty- 
hrawn, with sometimes two or three dark longitudinal rays 
and a few blotches or zigzag marks ; inside smooth, white, 
with often a yellow or reddish tinge, and purple about the 
cartilage side, the margin plain and very obtuse: beaks a 
little turned to one side, not quite central, with the heart- 
shaped depression under them obsolete or wanting : teeth 
three in each valve, close together, two of them cloven : 
length nearly two inches ; breadth nearly three. 
On most sandy coasts, v. v. 
m 27. Venus Pullastra. Hen Venus. 
Linn. Trans, vi. pi. 17- f- 13, 14, and viii. pi. 2. f. 7-^ 
Dorset Cat. pi. 1. f. 8. 
Shell convex, produced and somewhat angular on the 
cartilage side, finely and closely striate longitudinally and 
transversely, but not running into coarse tubercular pro¬ 
jections at the cartilage side: color varying from clear 
* white to a yellowish or brownish shade, with grey rufous 
or rich purple zigzag lines, streaks, rays or blotches, which 
are 
