264 
MARINE SHELLS OF WEST COAST OF NORTH AMERICA 
Subgenus Schizopyga Conrad, 1850 
Alectrion fossatus Gould, 1849 
Plate 26, figs. 1, 3, 5, 7, 9 
Proceedings of the Boston Society of Natural History, 3: 152. Tryon, Manual of 
Conchology, 4; PI. 17, fig. 316. 
Shell broad-ovate, elongated, thin, livid, ash-colored, encircled through¬ 
out with raised ridges, of a deeper color, interspaces of about equal width. 
On the upper whorls these ridges are formed into coarse granules by 
longitudinal folds about equally distant, but more shallow. On the upper 
slope of the last whorl, in some specimens these are increased so as to 
become conspicuous, very oblique waves or nodules, terminating at the 
middle of the whorl. Spire of seven convex whorls, the last of which 
is ventricose, and has the usually constricted, posterior groove encircling 
the beak, excavated into a broad, remarkably deep canal; suture linear. 
Aperture broad, quadrate-ovate; lip sharp, simple, oblique posteriorly, 
parallel to the axis laterally and perpendicular to it at the base, thus 
forming an obtuse angle at the posterior third, and a right angle at its 
anterior limit, which is a little in advance of the point of the beak; 
siphonal notch broad, short, scarcely reflexed; pillar covered with a thin 
layer of enamel, but in general not enough to obliterate the groove and 
ridges, so that it appears corrugated throughout. In old specimens, 
the callus rises into an elevated marginal wall, with oblique folds and a 
canal at the angle posteriorly; interior of the aperture with sharp, raised 
revolving lines. Length, 1% i breadth, 4/5 in. (Gould.) 
Type in? Type locality, Puget Sound at the mouth of the Columbia 
River. 
Range. Vancouver Island to Cerros Island, Lower California. 
Alectrion californianus Conrad, 1856 
Plate 26, fig. 13 
Proceedings, Philadelphia Academy of Natural Sciences, 315. Pacific Railroad, Re¬ 
ports, 6; PI. 2, fig. 1. Bulletin 112, United States National Museum; PI. 11, fig. 4. 
Volutions rounded, having revolving ribs and longitudinal furrows, 
giving the ribs a nodulous character; basal excavation profound. (Con¬ 
rad.) Length, 31; breadth, 14 mm. (Oldroyd.) 
Type. A fossil, New York State Museum? Type locality, Santa Clara, 
California. 
Range. Coast of Oregon to San Ignacio Lagoon, Lower California. 
Fossil: Pleistocene—San Pedro, Ventura, San Diego. Pliocene— 
San Pedro. Miocene—Santa Clara County, California. 
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