178 CATALOGUE OF THE MOLLUSCA 
Donovan, who figures it from a specimen “found near Hartlepool, 
on the coast of Durham.” The shell had most likely got there 
by some accident, as the species is not known to inhabit our 
coast, and is scarcely British. 
Famity. VENERIDA, Fleming. 
90. ARTEMIS, Poli. 
1. A. ExoLeta, Linn. 
Venus exoleta, Mont. Test. Brit. 116. 
From deep water, frequent ; more especially towards the north 
of Northumberland. ; 
2, A. uincta, Pult. 
Cytherea lincta, Flem. Brit. Anim. 445. 
Var. Artemis comta, Lovén Index Moll. Scand. 39. 
At different depths, on most parts of the coast, not uncommon. 
A specimen of his Artemis comta, sent to us by Professor 
Lovén, enables us to state that it is similar to what we consider 
a variety of Artemis lincta, found on our coast. 
3. A. UNDATA. 
Venus undata, Mont. Test. Brit. 117. 
From deepish water, not common. 
We place this species provisionally here, though scarcely a true 
Artemis, as there is some difficulty in assigning it a generic appel- 
lation. The name of Mysia, given to it by Dr. Leach, has been 
appropriated by Capt. Brown to a different shell, Zedlina rotun- 
data, Mont, (Conchologists’ Text Book, 150), and is consequently 
synonymous with Diplodonta, Bronn. 
91. VENUS, Linneus. 
1. V. verrucosa, Linn. 
Venus verrucosa, Mont. Test. Brit. 112. 
Seaton Carew, single valves.—Miss Elizabeth Backhouse. It 
is also in Sir C. Sharp’s Hartlepool list, and Capt. Brown says 
that it is found on the Northumberland coast. We have never 
been so fortunate as to meet with it, and suspect it may have 
been derived from ballast. 
