1918 | Packard: Molluscan Fauna from San Francisco Bay 339 
FUSIDAE 
Fusinus Rafinesque 
Fusinus luteopictus (Dall) 
Fusus luteopictus Dall, Arnold, R. (1903), p. 225. 
Fusus cinerus Say, Blankinship and Keeler (1892), p. 153. 
Description.—Arnold (1903) described this species as follows: 
“*Shell small, fusiform; whorls five, convex, crossed by nine rounded ridges 
which reach their maximum development on the middle of the whorl; surface 
ornamented with three or four prominent spirai lines, with finer ones some- 
times intercalated; suture appressed; aperture subovate; outer lip not thick- 
ened, with internal spiral lines; inner lip incrusted; columella short; canal very 
short, narrow.’’ 
Specimens of this species were reported to have come from San 
Francisco by Carpenter, also by Blankinship and Keeler (1892) page 
153. Not represented in the Survey collections. 
Range.—Farallon Islands to San Diego, California (Arnold). 
Fusinus harfordi (Stearns) 
Fusus (Chrysodomus?) harfordi Stearns (1873), p. 79; Dall (1891), pp. 
178-179, pl. 6, fig. 6. 
Description.—This species was described by Stearns (1873) as follows: 
‘‘Shell solid, elongate, regularly fusiform; spire elevated, whorls six or 
seven, moderately convex, slightly flattened (in outline) above, with a groove 
or channel following the suture; color, chocolate brown; surface marked by 
numerous narrow revolving costae, which alternate in prominence on the body 
whorl, and longitudinally by fine incremental striae, and on the upper whorls 
by obtusely rounded ribs of more or less prominence; aperture ovate, about 
one-half the length of the shell, polished, white and finely ribbed within (the 
outer lip in perfect specimens is probably finely crenulated) ; canal short, nearly 
straight.’’ 
Dall (1891) reports this from this region. Not dredged by the 
‘* Albatross. ”’ 
Range.—Mendocino County, California, to the Farallon Islands 
(Dall). 
VOLUTIDAE 
Mitra Lamarck 
Mitra idea Melvill 
Mitra idea Melvill (1893). 
Mitra maura Swainson, Carpenter (1863), p. 661; Arnold, R. (1903), p. 222. 
This species was referred to the Peruvian form Mitra maura 
(= WM. orientalis Gray) by Carpenter and most subsequent authors. 
Although it has been reported from the Farallon Islands, it was not 
taken by the Survey. 
Range.—Farallon Islands to San Diego, California (Arnold). 
