46 BULLETIN 91, UNITED STATES NATIONAL MUSEUM. 



MITRA, species? 



Cat. No. 18252, U.S.N.M., three shells too young to be positively 

 determined, from South Africa. 



Genus MITROMORPHA A. Adams. 



MITROMORPHA VOLVA Sowerby. 



Cat. No. 186692, U.S.N.M., three specimens from Port Alfred (Coll. 

 No. 51). Cat. No. 272152, U.S.N.M., an additional specimen from 

 South Africa. 



Family FASCIOUARIIDAE. 



Genus FASCIOLARIA Lamarck. 



FASCIOLARIA HEYNEMANNI Dunker. 



Cat. No. 186738, U.S.N.M., one specimen from Port Alfred (Coll- 



No. 97). 



FASCIOLARIA ALFREDENSIS, new species. 

 Plate 4, fig. 3, 3a, 36. 



Shell of medium size, fusiform, externally light brown, inter- 

 nally bluish-white. Nuclear whorls decollated. Post-nuclear whorls 

 marked by a strongly tuberculated median ridge between the sutures. 

 Tubercles, 11 on each whorl, narrow and elongated, having their 

 long axis parallel with the spiral sculpture. The space between the 

 tuberculated ridge and the summit is concave and is marked by 

 many slender raised threads, while that between the insertion of the 

 columella and the tuberculated ridge is marked by about 10 

 depressed, unequally broad, spiral bands, which, like the spaces 

 between them, are very finely, spirally lirate; rostrum spirally lirate. 

 The axial sculpture consists of rather coarse incremental lines. 

 Aperture spoon-shaped; posterior angle acute; columella triplicate; 

 anterior fold very strong and acute; spiral cord on the parietal wall 

 slender. 



The type, Cat. No. 187026, U.S.N.M., comes from Port Alfred 

 (Coll. No. 562). It has lost the early whorls, the 5J remaining meas- 

 ure: Length, 133 mm.; diameter, 55 mm. 



FASCIOLARIA, species? 



Two specimens from Port Alfred, too poor to be specifically deter- 

 mined, and listed as Cat. No. 187027, U.S.N.M. (Coll. No. 563), 

 and Cat. No. 250438, U.S.N.M. (Coll. No. 1311). 



Genus LATIRUS Montfort. 

 LATIRUS ROUSI Sowerby. 



Cat. No. 186739, U.S.N.M., one specimen from Port Alfred (Coll. 



No. 98). 



