18 BULLETIN 112, UNITED STATES NATIONAL MUSEUM. OSTREA PALMULA Carpenter, 1857. Mazatlan Cat, p. 163. Puget Sound to Gulf of California. OSTREA LURIDA Carpenter, 1864. Suppl. Rep. Brit. Assoc, p. 645; Journ. de Conchyl., vol. 12, p. 137. Sitka to Cape San Lucas. OSTREA LURIDA EXPANSA Carpenter, 1864. Suppl. Rep. Brit. Assoc, p. 646 ; Journ. de Conchyl., vol. 12, p. 138. Monterey to San Diego, California. OSTREA ELONGATA (Solander, 1786, var.) VIRGINICA Gmelin, 1792. Syst. Nat., vol. 7, p. 3336; Conch. Cab., ed. 1, vol. 8, figs. 677, 678. Imported from the Atlantic Coast. Superfamily PECTINACEA. Genus PECTEN Miiller, 1776. Subgenus Pecten s. s. PECTEN DIEGENSIS Dall, 1898. Trans. Wagner Inst., vol. 3. pt. 4, p. 710. — — — pi. 17. fig. 0. Monterey to San Diego and the Cortez Bank. Subgenus Chlamys Bolten, 1798. CHLAMYS HERICTCS Gould, 1850. Proc Boston Soc. Nat. Hist., vol. 3, p. 346. pi. 43, figs. 3. 3a. Port Althorp, Alaska, to San Diego, California. CHLAMYS (HERICITJS Gould, var.?) ALBIDUS Dall, 1906. Arnold, Tert. Pectens CaL, p. 136, pi. 52, fig. 2. Aleutian Islands. CHLAMYS HASTATUS Sowerby. 1843. Tbes. Conch. Pecten, p. 72, pi. 20, fig. 236. — 42, figs. 1, 2. Monterey to San Pedro, California. Hinds. Zool. Sulphur Voy. Moll. Arnold, Tert. Pectens CaL Arnold, Tert. Pectens Cal., pi. CHLAMYS HINDS1I Carpenter, 1864. Suppl. Rep. Brit, Assoc, p. 645. Arnold, Tert. Pectens Cal., pi. 43, figs. 1, 2. Monterey to San Pedro, California. CHLAMYS HINDSII NAVARCHUS Dall, 1898. Trans. Wagner Inst., vol. 3, pt. 4, p. 70S. pi. 17, fig. 5. Bering Sea to San Diego, California. CHLAMYS HINDSII KINCAIDI Oldroyd, 1920. Nautilus, vol. 33, p. 135, pi. 4, figs. 3. 4. Puget Sound. Hinds, Zool. Sulphur Voy. Moll.,
NORTHWEST COAST MARINE SHELLBEARING MOLLUSKS. 19 CHLAMYS ISLANDICUS Mullcr, 1776. 1'rodr. Zool. Dauica, p. 24S. Arnold, Tort. Pectens Cal., p. 113, pi. 45, fig. 1. Arctic Ocean to Kamchatka and Puget Sound. Also Atlantic. CHLAMYS ISLANDICUS BERINGIANUS Middcndorff, 1849. Beitr. Mai. llos<strong>si</strong>ca, vol. 3, p. 12. Arnold, Tert Pectens Cal., pi. 44, figs. 2-4. Beiing Sea. CHLAMYS ISLANDICUS PUGETENSIS Oldroyd, 1920. Nautilus, vol. 33, p. 13G, pi. 4, figs. 5, 6. San Juan Island. CHLAMYS PAUCICOSTATUS Carpenter, 1864. Suppl. Ilep. Brit. Assoc, p. 645. Arnold, Tert. Pectens Cal., pi. 39, figs. 3, 4. Cataliua Island, California, to Gulf of California. Section PATINOPECTEN Ball, 1898. CHLAMYS CAURINUS Gould, 1850. Proc. Boston Soc. Nat. Hist., vol. 3, p. 345. Arnold, Tert. Pectens Cal., p. 101, pi. 3S, 39. Wrangell, Alaska, to Siletz Bay, Oregon. Section LEPTOPECTEN Verrill, 1897. CHLAMYS LATIAURITUS Conrad. 1837. Journ. Acad. Nat. Sci. Pbila., vol. 7, p. 238, pi. 18, fig. 9. Monterey, California, to Lower California. CHLAMYS LATIAURITUS MONOTIMERIS Conrad, 1837. Journ. Acad. Nat. Sci. Phila., vol. 7, p. 23S. pi. 18, fig. 10. Monterey, California, to Gulf of California. CHLAMYS LATIAURITUS FUCICOLUS Dall, 1898. Trans. Wagner Inst., vol. 3, pt. 4, p. 710; Zool. Sulphur Voy. Moll., pi. 17. On floating kelp. CHLAMYS 7TUMBEZENSIS Orbigny, 1846. Voy. Amer. Mer., p. 663 ; Thes. Conch. Pecten, pi. 12, figs. 18, 19, 26. Santa Barbara, California, to Peru. Section PLAGIOCTENIUM Dall, 1898. CHLAMYS CIRCULARIS Sowerby. 1835. Proc. Zool. Soc, p. 110; Thes. Conch. Pecten, p. 49, pi. 15, figs. 105, 100.— Arnold, Tert. Pectens Cal., pi. 44, fig. 6. Monterey, California, to Payta. Peru. CHLAMYS CIRCULARIS AEQUISULCATUS Carpenter, 1865. Ann. Mag. Nat. Hist., ser. 3, vol. 15, p. 179. Arnold, Tert. Pectens Cal., p. 132 ; pp. 45-46, text figs. 1, 2, pi. 50, fig. 1. Santa Barbara to Cape San Lucas, Lower California. Subgenus Pseudamtj<strong>si</strong>um H. and A. Adams, 1S58. PSEUDAMUSIUM RANDOLPHI Dall, 1897. Nautilus, vol. 11, No. 8, p. 80; Proc. U. S. Nat. Mus., vol. 24, p. 559, pi. 40, fig. 2. Bering Sea to Guaymas, Mexico. "
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