VENUS. 115 
attention of naturalists to the important consideration of 
nomenclature, and to prevent, at least, additional error, if it 
be impossible to rectify the present barbarisms. 
Section I. Three strong teeth in each valve. 
VENUS, Linneus, 
V. rascrata, Donovan. 
V. fasciata, Brit. Moll. i. p.415, pl. 23. f.3, and pl. 26. f.7; (ani- 
mal) pl. L. f. 7. 
Animal compressed, body flake-white ; mantle open, thick 
and muscular, bordered with fine white fringe. The siphons 
are very short, soldered on each other, just separate at their 
extremities ; the anal is the smaller, slightly curving upwards, 
furnished with a flexible hyaline valve, and frimged at the 
orifice with about fifteen plam white cirrhi; the branchial has 
twenty rays of similar cast; both the tubes are of a pale 
suphur-yellow, with flaky markings and margined with a 
fine red line, and are aspersed from their bases with minute 
sand-like red pomts. On each side there are a pair of pale 
brown suboval branchiz, the upper being much the smaller 
and strongly striated on both surfaces; the palpi are small, 
pointed and triangular, externally smooth, but striated across 
the inner surface. The foot, at rest, is securiform, apparently 
scarcely detached from the body; when extended — but it is 
rarely seen so—it is thick, moderately long, and lanceolate. 
The colour pure white. 
Common, alive, in the coralline zone at Exmouth. 
V. sTRIATULA, Donovan. 
V. striatula, Brit. Moll. i. p. 408, pl. 23. f.4, and pl. 24. f.4, and 
Pi. 205;f..95, 00, E 
Animal white; mantle open throughout the ventral range, 
having the margin fringed with short fine white filaments. 
The siphons are rather slender, and when extended are about 
12 
