118 BULLETIN 91, UNITED STATES NATIONAL MUSEUM. 



SILIQUARIA, species ? 



Five lots of another species of Siliquaria are in the collection of the 

 United States National Museum, all from Port Alfred. We have 

 been unable to identify these species. They are: Cat. No. 187149, 

 three specimens (Coll. No. 696). Cat. No. 249789, three specimens 

 (Coll. No. 1061). Cat. No. 250521, one specimen (Coll. No. 1394). 

 Cat. No. 250522, one specimen (Coll. No. 1395). Cat. No. 250523 

 one specimen (Coll. No. 1396). 



Family TURRITELLIDAE. 



Genus TURRITELLA Lamarck. 

 TURRITELLA PUNCTICULATA Sowerby. 



Cat. No. 225, U.S.N.M., one specimen collected by William Stimp- 

 son on the North Pacific Exploring Expedition at False Bay, Cape of 

 Good Hope. Cat. No. 250406, U.S.N.M., contains a young specimen 

 from Port Alfred (Coll. No. 1279). 



TURRITELLA CARINIFERA Lamarck. 



Cat. No. 187, U.S.N.M., four specimens collected by William Stimp- 

 son on the North Pacific Expiring Expedition at Simons Bay, Cape 

 of Good Hope. Cat. No. 43015, U.S.N.M., three specimens from Cape 

 of Good Hope. Cat. No. 77223, U.S.N.M., two specimens collected 

 by Dr. Newcomb at Cape of Good Hope. Cat. No. 186809, U.S.N.M., 

 three specimens from Port Alfred (Coll. No. 175). Cat. No. 17246, 

 U.S.N.M., three specimens from the Cape of Good Hope. 



TURRITELLA ANNULATA Kiener. 



Cat. No. 187040, U.S.N.M., one specimen from Port Alfred (Coll. 

 No. 577). Cat. No. 250407, U.S.N.M., contains an additional speci- 

 men from Port Alfred (Coll. No. 1280). 



TURRITELLA STIMPSONI, new species. 



Plate 5, fig. 8. 



Shell very elongate-conic, yellowish white, streaked at irregular 

 intervals with light brown. Nuclear whorls If, well rounded, 

 smooth. Postnuclear whorls appressed at the summit, having two 

 very strong spiral cords, the first of which is on the middle of the whorl, 

 while the second is half way between this and the suture. A third 

 slender thread is situated half way between the two cords and the 

 suture. The portion of the shell between the summit and the first 

 spiral keel forms a slightly concave shoulder, while the space between 

 the two keels forms a deep, broad, concave channel, the space between 

 the second keel and the suture being likewise somewhat concave. 

 In addition to the above sculpture, the entire surface of the spire is 

 marked with fine incremental lines and very fine, closely spaced, 

 spiral striations. Periphery of the last whorl well angulated by a 



