Shell fusiform, thin, spire acute, whorls angulated; sculpture consisting of about 12 short, oblique, protractive axial ribs, about 12 on the last whorl on which 2 or 3 are much larger than the others; axials crossed by spiral threads of which 2 on the periphery are slightly larger than the others; canal long, narrow, slightly recurved; pale brown, interior pinkish.
A specimen from Arena Bank, Gulf of California, measures: height, 40.3 mm.; maximum diameter, 14 mm.

The shell of this species differs from that of Fusiturricula fusinella Dall in that the axial ribs are oblique rather than straight and in that on large specimens about every fourth rib is enlarged.

Range: Santa Maria Bay, Lower California, to Santa Inez Bay, Gulf of California, and south to the Gulf of Chiriqui, Panama.
Collecting Stations: Mexico: Arena Bank, Gulf of California 35-55 fathoms, mud, sand, weed, Arca conglomerates; Santa Inez Bay, Gulf of California 35 fathoms, mud, crushed shell; Gorda Banks, Gulf of California, 45 fathoms, sand, calcareous algae; Costa Rica: off Ballena Bay, Gulf of Nicoya, 35 fathoms, mud; Panama: Gulf of Chiriqui, 35-40 fathoms, sandy mud.