154 BULLETIN 112, UNITED STATES NATIONAL MUSEUM. 
Family LACUNIDAE. 
Genus LACUNA Turton, 1827. 
LACUNA PORRECTA Carpenter, 1864. (Plate 14, fig. 2.) 
Suppl. Rep. Brit. Assoc., p. 656 ; Ann. Mag. Nat. Hist., ser. 3, vol. 14, p. 428. — 
Tryon, Man., vol. 9, p. 265, pi. 50, fig. 55. 
Commander Islands, Bering Sea, southward and eastward to San Diego, 
California. 
LACUNA PORRECTA EFFUSA Carpenter, 1864. 
Suppl. Rep. Brit. Assoc., p. 656 ; Ann. Mag. Nat. Hist., ser. 3, vol. 14, p. 428. — 
Tryon, Man., vol. 9, pi. 50, fig. 56. 
Fuca Strait to San Francisco, California. 
LACUNA PORRECTA EXAEQUATA Carpenter, 1864. 
Suppl. Rep. Brit. Assoc., p. 656; Ann. Mag. Nat. Hist., ser. 3, vol. 14, p. 
428. — Tryon, Man., vol. 9, pi. 50, fig. 57. 
Neah Bay, Washington. 
LACUNA PORRECTA PUTEOLOIDES (Carpenter MS.) Dali, 1919. 
Proc. U. S. Nat. Mus., vol. 56, No. 2295, p. 349. 
Lobitas, California. 
LACUNA GLACIALIS Moller, 1842. 
Index Moll. Gronl., p. 9. — Tryon, Man., vol. 9, pi. 50, fig. 76. 
St. Paul Island, Pribilof group. Also Greenland. 
LACUNA DIVARICATA Fabricius, 1780. 
Fauna Gronlandica, p. 392. — Tryon, Man., vol. 9, pi. 50, fig. 75. 
Norton Sound, Alaska, and south to Santa Barbara, California, also 
Pliocene. Also Northern Europe and Greenland. 
LACUNA SOLIDULA Loven, 1846. 
Index Moll. Scand., p. 23. — Tryon, Man., vol. 9, pi. 50, fig. 69. 
v'^./i^y^Puget Sound, Washington, to San Diego, California. Also Atlantic. 
LACUNA VARIEGATA Cai-penter, 1864. 
Suppl. Rep. Brit. Assoc., p. 656. — Tryon, Man., vol. 9, pi. 50, fig. 64 ? 
Neah Bay, Washington, to Monterey, California. 
LACUNA UNIFASCIATA Carpenter, 1856. 
Proc. Zool. Soc., p. 205. — Tryon, Man., vol. 9, pi. 50, fig. 74. 
, Santa Barbara, California, to Magdalena Bay, Lower California. 
LACUNA UNIFASCIATA AURANTIACA Carpenter, 1856. 
Proc. Zool. Soc., p. 205. 
Santa Barbara, California, to Point Abreojos, Lower California. 
LACUNA MARMORATA Dali, 1919. 
Proc. U. S. Nat. Mus., vol. 56, p. 348. — Tryon, Man., vol. 9, pi. 50, fig. 58. 
Saginaw Bay, Alaska, to San Diego, California. 
Subgenus Boetica Dali, 1918. 
BOETICA VAGINATA Dali, 1918. 
Proc. Biol. Soc. Wash., vol. 21, p. 137 ; Proc. U. S-. Nat. Mus., vol. 56, p. 349. 
Santa Rosa Island, in 53 fathoms, and oif La Jolla, San Diego, County, 
California, 199 fathoms. 
