70 
MARINE SHELLS OF WEST COAST OF NORTH AMERICA 
Type in United States National Museum, No. 73743. Type locality, 
Labrador’s reef, Ungava Bay. 
Range. Arctic Ocean near Bering Sea, also Labrador. 
Family FOSSARIDAE 
Genus FOSSARUS Philippi, 1840 
Shell perforated, sculptured ; inner lip thin; aperture semilunate. Oper¬ 
culum not spiral. (Tryon, Structural and Systematic Conchology.) 
Type. Fossarus costatus Brocchi. 
Distribution. Mediterranean, West America, Polynesia, Japan, Red 
Sea. Fossil Miocene, Europe. 
Fossarus angiolus Dali, 1919 
Proceedings of the United States National Museum, 56:350. 
Shell small, yellowish white, with a minute globular nucleus and about 
four whorls; the suture distinct, not appressed; surface dull; axial sculp¬ 
ture none; spiral sculpture on the upper whorls two, on the last whorl six, 
strong, elevated cords, with somewhat wider channeled interspaces; um¬ 
bilicus imperforate, the anterior cord forming its outer boundary; aperture 
circular, the outer lip thickened but not reflected, the inner lip thin, sharp. 
Height, 2.25; diameter, 1.75 mm. (Dali.) 
Type in United States National Museum, No. 271503. Type locality, 
Todos Santos Bay, Lower California. 
Range. Known only from type locality. 
Genus ISELICA Dali, 1918 
New name for Isapis Adams, 1853 (not of Westwood 1851). 
Shell umbilicated, spire elevated, cancellated or with revolving ribs, 
columella with a small median tooth (almost obsolete in F. anomala). 
(Tryon, Structural and Systematic Conchology.) 
Type. Fossarus anomala C. B. Adams. 
Distribution. West Indies, Mazatlan, and west coast North America. 
Iselica fenestrata Carpenter, 1864 
See Part II, Plate 31, fig. 6 
Annals and Magazine of Natural History, series 3, 14 : 429. Tryon, Manual of Con - 
chology, 9:272; PI. 52, fig. 11. 
I. testa /. ovoideae forma et indole simili; carinis ix. acutis (quarum iv. 
in spira monstrantur) cincta; interstitiis duplo latioribus, concinne quad- 
1672] 
