1918] Packard: Molluscan Fauna from San Francisco Bay 325 
dark green sand. Several fragments of shells that have been doubt- 
fully referred to this species were dredged at several localities within 
San Francisco Bay. These may, however, belong to P. lewisi which is 
known to oceur within the bay. The fragment from station D 5811, 
may have been brought here along with the eastern oysters with which 
it was found associated. 
Range.—Farallon Islands to Catalina Islands, California (Dall). 
Polinices lewisi (Gould) 
Plate 38, figure 1 
Natica lewisii Gould (1847), p. 239. 
Lunatia lewisii Tryon (1886a), p. 35, pl. 13, figs. 11, 12; pl. 9, fig. 70. 
Polynices lewisti Arnold, R. (1903), p. 315, pl. 10, fig. 4. 
Description.—This univalve was described by Tryon (1886a) as follows: 
“Conical globose, obsoletely spirally striate, yellowish white or brownish 
white; whorls obliquely sloping above with, in old specimens, an obtuse angle 
on the shoulder, defined by a slight concave constriction above and below it; 
interior chocolate white; umbilicus narrow and deep, with a tongue-shaped, 
chocolate-tinged callus extending partly over it from above.’’ 
Height, 30 to 75 mm. 
Occurrence —At stations D 5702 (1), D5731 (1), D5737* (2), 
1D B73 (a) 
This large predaceous gastropod has not hitherto been reported 
from the vicinity of San Francisco. Shells were dredged by the Survey 
in 1014 to 19 fathoms within Raccoon Straits, the Golden Gate and in 
the open ocean. 
Range.—Strait of Juan de Fuca, Washington, to San Diego, Cali- 
fornia (Cooper). 
Eunaticina Fischer 
Eunaticina oldroydi (Dall) 
Plate 35, figures 10a and 10b 
Sigaretus oldroydi Dall (1897b), p. 85. 
Eunaticina oldroydi, Dall (1899a), p. 85. 
Description.—Dall (1897b) originally described this species as follows: 
‘Shell large, thin, naticoid, with a short spire and 3-4 inflated whorls; color 
pale brown, livid on the spire, fading to waxen on the base; surface sculptured 
with extremely fine wavy spiral striae; aperture ample, oblique, the outer lip 
thin, a little patulous, the body covered with a thin callus, the pillar lip ob- 
liquely cut away, wide near the junction with the body, the basal part of the 
margin receding; umbilicus large, pervious, its walls covered with a thin, silky, 
brown wrinkled epidermis. ’’ 
Height, 24 mm. 
