A. FE. Verrili— Mollusca of the New England Coast. 225° 
Tellimya ferruginosa (Mont.) 
Mya ferruginosa Montague, Test. Brit., p. 44, pl. 26, fig. 5. 
Tellimya ferruginosa G, O. Sars, Moll. Reg. Arct. Norvegiz, p. 70, pl. 20, figs. la-c. 
PLATE XXX, FIGURE 13, 
This species was taken living, in considerable numbers and on 
several occasions, at and just below low water mark, in sand and 
mud, at the Gutters, on Naushon Island, near Wood’s Holl, August, 
1883, by the Fish Commission parties. It had not previously been 
definitely determined as inhabiting the American coast. 
On the European coast it occurs from the Gulf of Lyons to north- 
ern Norway, at Lofoten and West Finmark, and from 7 to 85 fathoms 
in depth. It has also been found in the Coralline Crag in England, 
and in the Post-glacial deposits. 
The animal is active and opens freely and widely. It often lies 
for a long time on the back with the valves gaping widely, the foot 
more or less extended and twisting about, and the elegantly frilled 
mantle edge broadly expanded and extending considerably beyond 
the edge of the shell, all around. Animal translucent white. The 
foot is long, ligulate, very flexible, in full extension longer than the 
shell, in partial contraction broad at base with a long groove on the 
edge*and an ill-defined white stripe in the center. It can be flattened 
out so as to be used as acreeping foot. The foot issues from the 
middle of the ventral edge of the shell. Mantle with the outer edge 
broad and delicately frilled and undulated and with small papille. 
It projects all around the edge of the shell, except close to the 
hinge. Ventral opening for the foot long, and large, bordered with 
small papillae. Posteriorly a pouch-like lobe of the mantle often 
protrudes below the anal opening, which is widely separated from the 
ventral slit; it isa simple opening of the mantle, often a little promi- 
nent, but more often not at all so. Several (7 or 8) large and small 
ones lived several days in confinement. 
Montacuta tumidula Jeffreys. 
Jeffreys, Brit. Conch., vol. v, p. 177, pl. 100, fig. 5, 1869. 
G. O. Sars, Mol. Reg. Arct. Norvegive, p. 69, pl. 19, figs. 18a—0. 
Station 2103, off Delaware Bay, in 1091 fathoms; and station 
2115, off Cape Hatteras, in 843 fathoms, one specimen (No. 38,190). 
Off Lofoten, 100-120 fathoms; off Hebrides and Shetland, 40-80 
fathoms ; Mediterranean. é 
