22 
University of Texas Bulletin 
This species appears to be quite rare, only one specimen hav- 
ing been obtained. It reminds one of C. haidingeri Zekeli, but 
differs from that species in the angle of the spire and the charac- 
ter of the transverse costas. 
Locality . — Shoal Creek, Austin, Texas. 
FUSIDAE 
Genus FUSUS Lamarck. 
Fusus siMONDSi n. sp. 
PI. XI, fig. 2. 
Dimensions. — Length, 100mm.; breadth, about 30mm. 
Description . — Shell elevated, turreted; whorls nine, rounded; 
sutures well defined; spire straight, conical, equalling about one- 
half the height of the shell; angle 25°; anterior canal long, 
straight, deep; lip and aperture unknown; surface of whorls 
ornamented with eight to ten transverse costae, which, with the 
intervening spaces, are crossed by four to six prominent, 
rounded, revolving lines. The costae are prominent on the upper 
part of the body whorl, but disappear below, leaving only the 
revolving lines. 
This species resembles F. texanus Shattuck, but the spire and 
body whorl are nearly equal, and the angle of the spire is much 
less. 
Locality . — Shoal Creek, Austin, Texas. 
VOLUTIDAE 
Genus VOLUTILITHES Swainson. 
V OLUTILITHES AUSTINENSIS n. Sp. 
PI. XI, fig. 1. 
Description . — Shell small, fusiform; spire elevated, sutures 
well defined; body whorl large, constituting the greater part of 
the shell, shoulder rounded; aperture narrow, elongate; canal 
long, straight, open and deep; columella with three strong, ob- 
lique plaits near the middle of the aperture; lip thin. Surface 
ornamented with about eighteen prominent, transverse costae 
crossed by numerous, fine rounded, revolving lines. 
Locality . — Shoal Creek, Austin, Texas. 
