no. 1617. NEW CRETACEOUS AND TERTIARY FOSSILS—ARNOLD. 373 
the body whorl a third revolving ridge equal in prominence to the 
major ridge marks the third angle, and below this are 8 or 9 minor 
revolving ridges, which become less and less prominent toward the 
anterior end of the shell; a faint carina revolves just below the suture; 
whole surface marked by fine incremental lines and numerous, micro- 
scopic revolving strie; on the last and penultimate whorls, are faint 
longitudinal undulations which rise to the prominence of faint nodes 
on the revolving ridges; suture appressed, distinct; canal quite short 
and rather narrow, curved slightly outward; aperture pyriform. 
Dimensions.—Of type, from which canal is broken, length, 12 mm.; 
latitude, 12 mm. 
Notes.—This species is quite unlike any other Fusus from the west 
coast, but is aparently allied to Lirofusus thoracius Conrad from the 
Claiborne Eocene. It is less tabulated than the latter, however, and 
has a much shorter canal and less prominent axial sculpture. 
Named in honor of Dr. George Hall Ashley, of the United States 
Geological Survey, one of the pioneer paleontologists to investigate 
the Santa Cruz region. 
Type—Cat. No. 165449, U.S.N.M. (Locality No. 100.) 
Horizon.—San Lorenzo formation, Oligocene. 
Localities—Santa Cruz quadrangle, Santa Cruz County, locality 
No. 100, San Lorenzo River, 8 miles above the town of Boulder Creek ; 
locality No. 107, small ravine 2} miles north of Eagle Rock; locality - 
No. 108, on road on divide between headwaters of South Fork of Wad- 
dell and Boulder creeks; locality No. 110, Two Bar Creek, 14 miles 
up from mouth; locality No. 115, South Fork of Waddell Creek, 14 
miles southwest of Eagle Rock; locality No. 117, North Fork of Wad- 
dell Creek, 32 miles west-northwest of Eagle Rock. (R. Arnold, W. 
R. Hamilton, and others.) 
od 
Genus TURCICULA Dall. 
TURCICULA SANTACRUZANA, new species. 
Plate XXXITI, fig. 4. 
Description.—Shell turbinated, solid, averaging about 35 mm. in 
altitude; spire considerably elevated; apex only moderately acute; 
suture deeply impressed, distinct; whorls 5, quite convex, biangular, 
upper angle about middle of whorl, lower one-half way between upper 
one and base; surface above upper angle gently sloping, flat to 
shehtly concave; surface between angles and between lower angle 
and suture decidedly concave; the upper angle is ornamented by 
about 18 low but distinct rounded nodes, while the lower angle and 
a slightly raised sutural ridge at the upper margin of the whorl each 
carry twice as many but slightly less prominent nodes; a faint ob- 
