198 
MARINE SHELLS OF WEST COAST OF NORTH AMERICA 
Type in cabinet of J. W. Mighels. Type locality, Bay Chaleur. 
Range. Arctic Ocean to San Diego, California. Also Atlantic. 
Described as Margarita. 
Solariella obscura Couthouy, 1838 
Boston Journal of Natural History, 2:100; PI. 3, fig. 2. 
T. testa subconica, perforata, fusco-rubente; anfractibus convexis, 
superne leviter angnlatis; basi convexa, apertura rotunda, labro tenui, 
laevi, intus iridescente; operculo corneo. (Couthouy.) 
Diameter of axis, %q ; of basis, % 0 in. 
Shell sub-conical, thin, color an obscure reddish-brown, whorls five in 
number, convex, traversed by numerous, very minute, revolving striae, 
intersected by almost imperceptible longitudinal ones; a single slightly 
elevated line or rib revolves a short distance below the sutures, which are 
tolerably well defined; base convex, concentric basal striae scarcely per¬ 
ceptible, transverse striae very apparent; umbilicus moderately wide and 
extending nearly to the apex; aperture circular, lip sharp, smooth inter¬ 
nally, and slightly reflected upon the umbilicus. Interior iridescent; oper¬ 
culum thin, horny, concentrically spiral. (Couthouy.) 
Type in Couthouy Collection. Type locality, Massachusetts Bay. 
Range. Arctic Ocean to Straits of Juan de Fuca. Circumboreal. 
Described as Turbo obscurus Couthouy. 
Solariella paupercula Dali, 1919 
Proceedings of the United States National Museum, 56:363. 
Shell coarse, usually more or less eroded, of a yellowish white over a 
brilliant nacre, with five or more moderately rounded whorls, the nucleus 
eroded; suture distinct, not appressed; axial sculpture of numerous some¬ 
what irregular narrow close-set wrinkles, extending over the whorl from 
the suture to the verge of the funicular umbilicus; spiral sculpture of a 
few spiral lines near the umbilicus; aperture subcircular, oblique, produced 
above, the lips joined over the body by a layer of enamel; the operculum 
dark brown, multispiral, with 8 or 10 turns; height of shell, 9.5; of 
aperture, 4.5 ; maximum diameter, 11 mm. (Dali.) 
Type in United States National Museum, No. 109457. Type locality, 
Arctic Ocean, north of Bering Straits. 
Range. Arctic Ocean to the Aleutian Islands. 
Described as Margarites pauper cuius Dali. 
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