SOUTH AFRICAN MARINE MOLLUSKS. 93 



Genus EUGYRINA Dall. 

 EUGYRINA GEMNIFERA Euthyme. 

 Plate 9, figs. 1, 4. 



Cat. No. 227776, U.S.N.M., two specimens from Port Alfred (Coll. 

 No. 871). I have figured one of these for comparison with the sub- 

 species described below. Cat. No. 187023, U.S.N.M., contains another 

 specimen from the same locality (Coll. No. 55S). Cat. No. 186705, 

 U.S.N.M., a young tip from the same locality (Coll. No. 65a). Cat. 

 No. 186787, U.S.N.M., contains one specimen from the same place 

 (Coll. No. 148.) 



EUGYRINA GEMNIFERA LEPTA, new subspecies. 

 Plate 8, figs. 1, 4. 



Shell similar to E. gemnifera but narrower and much lighter in weight. 

 The sculpture is decidedly reduced. The tubercles are much more 

 numerous and much less strongly defined than in E. gemnifera, there 

 being 12 on the last volution of typical gemnifera while lepta has 20 and 

 14 on the whorl preceding to 22 in lepta. In fact, the entire sculpture 

 is much finer in lepta than in gemnifera. 



Cat. No. 227777, U.S.N.M., contains the type and another speci- 

 men from Port Alfred (Coll. No. 872) and Cat. No. 187024, U.S.N.M., 

 contains one specimen from the same locality (Coll. No. 559). The 

 type has lost the tip, the seven whorls remaining measure: Length, 

 84.2 mm.; greater diameter, 46.3 mm. 



Genus ARGOBUCCINUM Moreh. 

 ARGOBUCCINUM ARGUS Gmelin. 



Cat. No. 91, U.S.N.M., one specimen collected by William Stimpson 

 on the North Pacific Exploring Expedition at Simons Bay. Cat. No. 

 16920, U.S.N.M., two from Cape of Good Hope. Cat. No. 125376, 

 U.S.N.M., two from Cape Town, collected by the U. S. Eclipse Expedi- 

 tion in 1890. Cat. No. 227775, U.S.N.M., one specimen from Port 

 Alfred (Coll. No. 870). 



ARGOBUCCINUM, species? 



Cat. No. 97, U.S.N.M., a fragment of a large specimen embracing 

 the aperture and part of the pillar, collected by William Stimpson 

 on the North Pacific Exploring Expedition at Simons Bay. 



Genus CYMATIUM Bolten. 

 CYMATIUM DOLIARIUM Lamarck. 



Cat. No. 106, U.S.N. M., two specimens collected by William Stimp- 

 son on the North Pacific Exploring Expedition at Simons Bay. Cat. 

 No. 88628, U.S.N.M., two from Cape of Good Hope. Cat. No. 186788, 

 U.S.N.M., two from Port Alfred (Coll. No. 149). 



