THE 
MARINE MOLLUSCA OF NORTHUMBERLAND 
(Continued from Last Year’s Report). 
By G. P. BULMAM. 
Among tlie following additions to my “ list ” of last year will 
be seen a number of species for the names, localities, and frequency 
of which I am indebted to Miss M. V. Lebour. 
A few Nudibranchs and Cephalopods are added ; but as these lists 
simply refer to the small collection in the laboratory, they are, of 
course, not worthy of comparison with those made by Alder 
and Hancock, particularly with reference to the first named 
order. There is a great deal to be done yet, and the blank in our 
collections reminds us forcibly of the splendid work carried out by 
these authors during the first half of the century. We shall be 
very thankful for specimens with particulars of localities, &c., of 
any species not yet recorded. 
PELECYPODA. 
Family — Arcid.t:. 
Genus — Arca. 
A. TETRAGONA, Poll. 
A. carclissa, Lam. 
“ One valve on the beach at Bamboro’.” — M.Y.L. 
Family — K eeliid.^. 
Genus — Montacuta. 
M. UIDENTATA, Mont. 
11 One specimen from sliell-sand at Bamboro’ in Sept., 1900.” — 
M.Y.L. 
M. FERRUGINOSA, Mont. 
“One valve, young, from shell-sand at Bamboro’ in Sept., 1900.” 
—M.Y.L. 
Genus — Las/ea. 
L. rurra, Mont. 
K cilia r., F. and II. 
“ One specimen from shell-sand at Bamboro’.” — M.Y.L. 
Common on the rocks at Cullcrcoats. 
