180 BULLETIN 112, UNITED STATES NATIONAL MUSEUM. 
LIRULARIA LIRULATA CONICA Carpenter, 1864. 
(Plate 17, figr. 1.) 
Suppl. Rep. Brit. Assoc., p. 653 ; Proc. Acad. Nat. Sci. Phila. for 1865, p. 61. 
Puget Sound. 
LIRULARIA LIRULATA OBSOLETA Carpenter, 1864. 
Suppl. Rep. Brit. Assoc., p. 653 ; Proc. Acad. Nat. Sci. Phila. for 1865, p. 61. 
Neah Bay, Washington. 
LIRULARIA LIRULATA SUBELEVATA Carpenter, 1864. 
Suppl. Rep. Brit. Asso., p. 653 ; Proc. Acad. Nar. Sci. Phila. for 1865, p. 61. 
Neah Bay, Washington. 
LIRULARIA ACUTICOSTATA Carpenter, 1864. (Plate 18, fig. 5.) 
Suppl. Rep. Brit. Assoc., p. 653 ; Proc. Cal. Acad. Sci., vol. 3, p. 157. 
Bodega Bay to Coronado Islands. fl>aJ<uj^^ 
LIRULARIA ALTHORPENSIS Dali, 1919. 
Proc. U. S. Nat. Mus., vol. 56, p. 365. 
Granite Cove, Port Althorp, Alaska. 
MARGARITES HELICINUS Phipps, 1773. 
Voy. N. Po-le, App., p. 198; Binney’s Gould’s Inv. Mass., p. 281, fig. 542. 
Bering Strait, all coasts of Bering Sea, and south to Catalina Island, Cali- 
fornia. Also Atlantic. 
MARGARITES HELICINUS ELEVATUS Dali, 1919. 
Proc. U. S. Nat. Mus., vol. 56, p. 366. 
BaranofC Island, Alaska. 
MARGARITES HELICINUS EXCAVATUS Dali, 1919. 
Proc. U. S. Nat. Mus., vol. 56, p. 366. 
Amchitka and Middleton Islands, Alaska. 
MARGARITES BERINGENSIS E. A. Smith, 1899. (Plate 16, figs. 5, 6.) 
Proc. Mai. Soc. London, vol. 3, p. 206, fig. 1. 
Arctic Ocean, Plover Bay, Commander Islands, and Petrel Bank, Bering Sea. 
MARGARITES ALBOLINEATUS E. A. Smith, 1899. (Plate 16, figs. 3, 4.> 
Proc. Mai. Soc. London, vol. 3, p. 206, fig. 2. 
All coasts of Bering Sea. 
MARGARITES OLIVACEUS Brown, 1827. 
111. Conch. Gt. Brit., ed. 1, p. IV, pi. 46, figs. 30-31. 
St. Lawrence Island (Krause) ; Atka Island, Aleutians. Also Atlantic. 
MARGARITES PRIBILOFFENSIS Dali, 1919. 
Proc. U. S. Nat. Mus., vol. 56, p. 366. 
Arctic Ocean to off Pribilof Islands, Bering Sea. 
MARGARITES FRIGIDUS Dali, 1919. 
Proc. U. S. Nat. Mus., vol. 56, p. 357. 
Arctic Ocean and south to Nunivak Island, Bering Sea ; and Windfall Har- 
bor, Admiralty Island, Alaska. 
MARGARITES MARGINATUS Dali, 1919. (Plate 16, figs. 1, 2.^ 
Proc. U. S. Nat. Mus., vol. 56, p. 367. 
Arctic Ocean and Bering Sea, south to Oregon. Also Atlantic. 
Subgenus Maegarites Leach, s. s. 
