126 
MARINE SHELLS OF WEST COAST OF NORTH AMERICA 
not quite adult; axial sculpture of retractively radiating grooves from the 
edge of a channeled suture nearly to one-fifth of the arch of the whorl, 
with wider interspaces, and faint incremental lines; there is no spiral 
sculpture; aperture ovate, outer lip thin, sharp, inner lip with a glaze of 
enamel, thicker under the suture and forming a convex mass over the 
wholly obliterated umbilicus; pillar lip slightly reflected, the periostracum 
on the base paler than elsewhere. Height of shell, 16; of aperture, 13; 
diameter, 13 mm. (Dali.) 
Type in United States National Museum, No. 205653. Type locality, 
United States Fish Commission, Station 4779, off Petrel Bank, Bering 
Sea, in 600 fathoms. 
Range. Known only from type locality. 
Polinices pallida Broderip and Sowerby, 1829 
Plate 97, fig. 9 
Zoological Journal , 4:372. Tryon, Manual of Conchology, 8:37; PL 14, figs. 26-28; 
PL 13, fig. 15; PL 9, figs. 76-78. 
Testa subglobosa, albida, tenui, apice breviter acuminato, eraso; an- 
fractibus rotundatis, margine elevatiusculo, sutura distincta; umbilico 
parvo; long., 13/20; Iat., 1 poll. (Broderip and Sowerby.) 
Ovately globose, narrowly umbilicated, smooth, dirty white under a 
yellowish-brown thin epidermis. Length, 28 mm. (Tryon, Manual of 
Conchology.) 
Type in British Museum. Type locality, Arctic. 
Range. Arctic Ocean; Forrester Island, Alaska; Puget Sound. 
Polinices gronlandicus (Beck) Moller, 1842 
Index Molluscorum Groenlandiac, 7. Sars, Mollusca regionis arcticae Norvegiac, 
PL 21, fig. 15. 
Testa globosa, perforata, solidiori, laeviuscula, solide alba; anfr. 4 con- 
vexis; spira mediocriter elata obtusa (plerumque corrosa) ; peristomata 
subcontinuo; umbilico angusto, prof undo; operculo corneo, tenui. L. 9"'. 
(Moller.) 
Shell globose, perforate, rather solid; smooth, uniformly white, with 
four convex whorls. Spire moderately high obtuse (mostly corroded) ; 
peristome subcontinuous; umbilicus narrow, but with thin corneous oper¬ 
culum. (Translation.) 
Type in Zoology Museum, Copenhagen. Type locality ? 
Range. Arctic Seas southward in gradually deeper water, to Monterey, 
California; also Greenland to Cape Cod. 
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