NORTHWEST COAST MARINE SHEIJ:.BEARING MOLLUSKS. 
27 
LYONSIA (CALIFORNICA van?) NESIOTES Dali, 1915. 
Proc. U. S. Nut. Mus., vol. 49, p. 453. 
Catalina and Coronado Islands, to Magdalena Bay. 
LYONSIA PUGETENSIS Dali, 1913. 
Proc. U. S. Nat. IMus., vol. 45, p. 595. 
Chignik Bay, Alaska, to Puget Sound. 
Subgenus Allogeamma Dali, 1903. 
ALLOGRAMMA AMABILIS Dali, 1913. 
Proc. U. S. Nat. Mus., vol. 45, p. 594. 
Off Santa Barbara Channel, California, 534 fathoms. 
Subgenus Entodesma Philippi, 1845. 
ENTODESMA INFLATUM Conrad, 1837. 
Journ. Acad. Nat. Sci. I'hila., vol. 7, p. 248, pi. 19, fig. 10. 
In sponges, Vancouver Island to Guayaquil. 
Section AGRIODESMA Dali, 1800. 
ENTODESMA SAXICOLA Baird, 1863. 
I’roc. Zool. Soc., p. 70: Proc. U. S. Nat. Mus., vol. 49, p. 456. 
Aleutian Islands to Cape Colnette, Lower California. 
ENTODESMA SCAMMONI Dali, 1871. 
Ainer. .Journ. Conch., vol. 7, p. 142, pi. 16, fig. 3. 
Port Simpson, British Columbia (Scammon). San Diego (Orcutt). 
Genus MYTILIMERIA Conrad, 1837. 
MYTILIMERIA NUTTALLII Conrad, 1837. 
Journ. Acad. Nat. Sci. Phila., vol. 7, p. 246, pi. 19, fig. 5. 
In compound Ascidians. Vancouver Island to San Diego, California. WMe^ 
Superfamily POROMYACEA. 
Family POROMYACIDAE. 
Genus POROMYA Forbes, 1844. 
Subgenus Deematomya Dali, 1908. 
DERMATOMYA TENUICONCKA Dali, 1913. (Plate 3, fig. 10.> 
Proc. U. S. Nat. Mus., vol. 45, No. 2002, p. 596. 
Alaska Peninsula to Coronado Islands, in deep water. 
DERMATOMYA BUTTONI Dali, 1916. 
Proc. U. S. Nat. Mus., vol. 52, No. 2183, p. 406. 
Monterey, California (Button). 
DERMATOMYA BERINGIANA Dali, 1916. 
Proc. U. S. Nat. Mus., vol. 52, No. 2183, p. 406. 
Aleutian Islands to Tillamook, Oregon. 
