170 BULLETIN 112, UNITED STATES NATIONAL MUSEUM. 
ACMAEA LIMATULA Carpenter. 1866. 
Amer. Journ. Conch., vol. 6, p. 340. — Tryon, Man., vol. 13, p. 14, pi. 3, 
figs. 38-40. 
Crescent City, California, to Cerros and Socorro Islands. 
ACMAEA LIMATULA MORCHII Dali, 1878. 
Proc. U. S. Nat. Mus., vol. 1, p. 47. — Tryon, Man., vol. 13, pi. 3, figs. 47-49. 
Tomales Bay, California. 
ACMAEA SCABRA Gould, 1846. 
Proc. Boston Soc. Nat. Hist., vol. 2, p. 152. — Tryon, Man., vol. 13, pi. 1, 
figs. 7, 9. 
San Francisco, California, to Socorro Island. 
ACMAEA SYBARITICA Dali, 1871. 
Amer. Journ. Conch., vol. 6, p. 257. pi. 17, fig. 34. — Tryon, Man., vol. 13, 
pi. 9, figs. 22-24. 
Plover Bay, Eastern Siberia, to Hakodate, Japan, on the west; on the 
east from the Pribilof and Aleutian Islands, to Chirikoff Island. 
ACMAEA APICINA ball, 1879. y 
Proc. U. S. Nat. Mus., vol. 1, p. 403. — Tryon, Man., vol. 13, pi. 7, figs. 66, 67. 
Pribilof, Aleutian, and Shumagin Islands, Alaska. 
ACMAEA PERSONA Eschscholtz, 1833. 
Zool. Atlas., vol. 5, p. 20, pi. 24, figs. 1, 2. 
Shumagin Islands, Alaska, to Socorro Island. 
ACMAEA PERSONA STRIGILLATA Carpenter, 1866. 
Suppl. Rep. Brit. Assoc., p. 618; Amer. Journ. Conch., vol. 2, p. 337. 
Sitka, Alaska, to Magdalena Bay, Lower California. 
ACMAEA ROSACEA Carpenter, 1866. 
Amer. Journ. Conch., vol. 2, p. 341. — Tryon, Man., vol. 13, pi. 7, figs. 71-73. 
Neah Bay, Washington, to Acapulco, Mexico. 
ACMAEA INSTABILIS Gould, 1846. 
Proc. Boston Soc. Nat. Hist., vol. 2, p. 150. — Tryon, Man. vol. 13, pi. 6, 
figs. 32, 33. ^ 
Kodiak Island to San Pedro, on kelp stalks, ^ 
ACMAEA INSESSA Hinds, 1842. 
Ann. Mag. Nat. Hist., vol. 10, p. 82, pi. 6, fig. 3. — Tryon, Man., vol. 13, 
pi. 6, figs.jf36, 37. 
Trinidad, California, to Magdalena Bay, Lower California, on kelp. 
ACMAEA ASMI Middendorff, 1849. 
Mai. Rossica, vol. 2, p. 39, pi. 1, fig. 5. — Tryon^ Man., vol. 13, pi. 6, figs. 
38, 39. 
Sitka, Alaska, to San Diego, California, and Socorro Island, on black 
Tegulas. 
ACMAEA DEPICTA Hinds, 1842. 
Ann. Mag. Nat. Hist., vol. 10, p. 82, pi. 6, fig. 4. — Tryon, Man., vol. 13, 
pi. 6, figs. 40, 41. 
Santa Barbara to Lower California, on Zostera. . 
