150 BULLETIN 111, UNITED STATES NATIONAL MUSEUM. 



The type is in the State University of Iowa collection and meas- 

 ures—length, 3.1 mm.; greater diameter, 0.8 mm.; lesser diameter, 

 0.7 mm.; anterior aperture, 0.35 mm.; apical aperture, 0.2 mm. It 

 was taken at the State University of Iowa Expedition Station 51, 

 off Barbados, in 33 fathoms. 



This fusiform little shell resembles a very small Cadulus husMi, but 

 its localized swelling and very small openings and simple apex seem 

 to denote a position under the subgenus Cadulus. It differs from all 

 the others of the group in its fusiform shape, caused by the evenly 

 converging lateral outlines. In the museum collection is a single 

 specimen. Cat. No. 314937, U.S.N. M., collected by the State Uni- 

 versity of Iowa Expedition of 1918 at station 80, off Bridgetown, 

 Barbados, in 40 to 75 fathoms. 



