PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 241 
Vol. VI, No. 16. Washington, D.C. Nov. 27, 1883. 
Margarita cinerea (Couth.) Gould. 
Dredged in abundance on sandy bottoms in 1 to 20 fathoms. 
Margarita Greenlandica (Gm.) Moll. (= M. undulata Gld.). 
Common at all the localities. At Dead Island, near Square Island, 1 
to 4 fathoms, the smooth variety was found. 
Margarita argentata Gould. 
One dead specimen was taken off Dead Island, near Square Island, 
n 2 to 4 fathoms, nullipore bottom. 
Macheeroplax varicosa (Migh.) Friele (= Margarita varicosa Gould). 
Forteau Bay, 20 fathoms; L’anse au Loup, 10 to 15 fathoms, sand, in 
abundance; Dead Island, near Square Island, 1 to 4 fathoms. 
Machezroplax obscura (Couth.) Friele (= Margarita obscura Gld.). 
One specimen, living, at L’anse au Loup, 15 fathoms, sand. 
Puncturella Noachina (L.) Lowe (= Cemoria Noachina Gld.). 
Henley Harbor, 3 to 8 fathoms; Dead Island, near Square Island, 2 
to 4 fathoms. 
Acmea testudinalis (Miill.) Han. (= Tectura testudinalis Gld.). 
L’anse au Loup, 8 to 15 fathoms; Henley Harbor, 3 to 15 fathoms; 
Temple Bay, 5 to 10 fathoms; Fox Harbor, Saint Lewis Sound, 1 to 5 
fathoms; Dead Island, near Square Island, 1 to 4 fathoms. 
Acmea rubella (Fabr.) Dall. 
Tectura rubella G. O. Sars, Moll. Reg. Arct. Norvegie, p. 121, pl. 8, figs.5 a, b. 
PLATE IX, Fias. 5, 5a. 
One living specimen was taken at Temple Bay, rocky bottom. 
Lepeta ceca (Miill.) Gray. 
Henley Harbor, 3 to 15 fathoms; Temple Bay, 5 to 10 fathoms. 
Tonicella marmorea (Fabr.) Carp. (= Chiton marmoreus Gld.). 
Occurred in abundance at L’anse au Loup, low-water mark to 8 fath- 
oms ; Henley Harbor, 3 to 15 fathoms; Temple Bay, 10 fathoms; Dead 
Island, near Square Island, 1 to 4 fathoms. 
Trachydermon ruber (Linné) Carp. (= Chiton ruber Gld.). 
Found with the preceding, but not in such abundance. 
Trachydermon albus (Linné) Carp. (=Chiton albus Gld.). 
A few were found at L’anse au Loup, 8 to 10 fathoms, rocks, sand, and 
mud. 
Proc. Nat. Mus. 83——16 
