46 
MARINE SHELLS OF WEST COAST OF NORTH AMERICA 
Micranellum pedroense Bartsch, 1920 
Height, 5.3; diameter, 1.5 mm. 
Type in United States National Museum, No. 346723. Type locality, 
San Pedro, California. 
Range. San Pedro to San Diego, California. 
Micranellum catalinense Bartsch, 1920 
Height, 4.5; diameter, 1.3 mm. 
Type in United States National Museum, No. 211331. Type locality, 
off Santa Rosa Island, California. 
Range. Santa Rosa and Catalina Islands, California, in 50 fathoms. 
Micranellum profundicolum Bartsch, 1920 
Height, 5.5; diameter, 1.3 mm. 
Type in United States National Museum, No. 209960. Type locality, 
off San Diego, California. 
Range. Off San Diego, in 50 to 199 fathoms. 
Micranellum barkleyense Bartsch, 1920 
Height, 6.2; diameter, 1.6 mm. 
Type in United States National Museum, No. 211589. Type locality, 
Barkley Sound, Vancouver Island, British Columbia. 
Range. Known only from type locality. 
Micranellum oregonense Bartsch, 1920 
Height, 4.6; diameter, 1.2 mm. 
Type in United States National Museum, No. 216413. Type locality, 
Forrester Island, Alaska. 
Range. Forrester Island, Alaska, to Monterey, California. 
Micranellum rosanum Bartsch, 1920 
Height, 6.9; diameter, 1.2 mm. 
Type in United States National Museum, No. 211859a. Type locality, 
off Santa Rosa Island, California. 
Range. Known only from type locality, in 40 fathoms. 
Genus FARTULUM Carpenter, 1856 
C. t. laevi, cylindracea, saepius utrinque contracta; apertura saepe 
declivi. (Carpenter.) 
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