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A, EF. Verrill— Catalogue of Marine Moliusea. 583 
The variety is nearly smooth and somewhat lustrous (fig. 43). The 
largest is 42" in the longest diameter; hinge margin 36™™, 
This shell was found in considerable nerabers adhering to hydroids, 
in 65 to 192 fathoms, south of Martha’s Vineyard, at stations 865 to 
867, and 869 to 873, in 1880; and at 949, 950, in 69 to 100 fathoms, 
1881. 
Southern England to the Azores, Canary Islands, and the Mediter- 
ranean, 
EXPLANATION OF PLATES. 
Tam indebted to Professor 8. F. Baird for permission to use in this place some of 
the drawings prepared for the illustration of the reports of the U. S."Fish Commission. 
They were mostly drawn from nature by Mr. J. H. Emerton, under the immediate 
direction of the author. Unless otherwise specially stated, they are from New Eng- 
land specimens. All are*from the eastern coast of New England and Canada. 
PLATE XLII. 
Figure 1.—Marsenina glabra V., p. 517, front view, x 24 diameters. 
Figure la—The same. Dorsal view. Eastport, Me., 1864. 
Figure 2.—Mursenina prodita, p. 518, front view, x 24 diameters. 
Figure 2a—The same. Dorsal view. Eastport, Me., 1868. 
Figure 3.—Marsenina ampla V., p. 518, front view, x 24 diameters. 
Figure 3a—The same. Dorsal view. “Eastport, Me., 1868. 
Figure 4.—WMarsenina glabra, 2, p. 517, ventral view of the living animal, x 3 diame- 
ters. Eastport, Me. 
Figure 5.—Torellia vestita, p. 521, front view, x 24 diameters. Gulf of Maine. 
Figure 6.—Lacuna glacialis, p. 522, front view, x 24 diameters. Gulf of St. Lawrence. 
Figure 7.— Cerithiella Whiteavesii V., p. 522, x 64 diameters. Gulf of St. Lawrence. 
Figure 8.— Cingula Jan- Mayeni, p. 524, x 10 diameters. Gulf of St. Lawrence. 
Figure 9.—Lunatia nana, p. 516, x 24 diameters. Side view, from life. No. 1266. 
Figure 10.—Scyllea Edwardsii V., p. 550, } natural size. 
Figure 11.—Jssa lacera, p. 547, dorsal view, from life; about natural size. 
Figure 12.—Acanthodoris ornata V., p. 549, dorsal view, from life ; more than natural 
size. Eastport, Me. < 
Figure 13.—Jdaliella pulchelia, p. 548, side view, natural size, from life. Salem, Mass. 
Figure 14.—Coryphella Stimpsoni V., p. 552, ventral view of head and anterior part of 
body, from life, enlarged about 2 diameters. Eastport, Me. 
Figure 15.—Ooryphella nobilis V., p. 552, two rows of teeth of the radula; much 
enlarged. 
Figure 16, a, b.—Dentalium occidentale St.: a, aperture; 6, side view of a young 
: example, x 5 diameters. 
