140 BULLETIN 91, UNITED STATES NATIONAL MUSEUM. 



NATICA SALDONTIANA, new species. 

 Plate 13, figs. 1, 2, 3. 



Shell small, subglobose, with well-elevated spire. Early whorls 

 badly eroded in our specimens, those remaining, well rounded, marked 

 with strong, retractive lines of growth, which are strongest near the 

 summit, weakening somewhat as they pass over the body of the 

 whorls. Periphery and base of the last whorl well rounded, the latter 

 very narrowly umbilicated. Aperture oval, bluish white within ; outer 

 lip thin; inner lip thin, strongly curved and very slightly reflected; 

 parietal wall covered with a thick callus, which extends down to the 

 inner lip and practically covers up the umbilicus, forming a rounded 

 patch over it. The general coloration of the shell is bluish gray, with 

 numerous fine, brown, wavy lines, which coincide in a general way 

 with the lines of growth. There is a tendency on the part of these 

 lines to become consolidated into brown spots at the summit, par- 

 ticularly on the last portion of the last whorl. 



The type and another specimen, Cat. No. 163024, U.S.N.M., were 

 dredged in 27 fathoms in Saldontia Bay. The type has four and one 

 half whorls and measures: Length, 14.2 mm.; diameter, 13.6 mm. 

 This shell comes nearest to Natica nemo Bartsch, but has a more 

 elevated spire and has the parietal callus extending down over the 

 umbilicus; it also lacks the strongly impressed notchings at the summit. 



NATICA, species? 



Cat. No. 187081, U.S.N.M., contains three specimens from Port 

 Alfred (Coll. No. 623), which appear to belong to a new species. The 

 color markings of these shells are so badly faded that we refrain from 

 describing the specimens. Cat. No. 249749, U.S.N.M., two equally 

 poor specimens from Port Alfred (Coll. No. 1021). 



Cat. No. 250484, U.S.N.M., contains a large, low, broad Natica, 

 with a dark umbilical callus, which is too poor to be identified, from 

 Port Alfred (Coll. No. 1357). 



Cat. No. 249773, U.S.N.M., contains three nepionic shells of a 

 Natica, from Port Alfred (Coll. No. 1045). 



Family VANIKOROIDAE. 



Genus VANIKORO Quoy and Gaimard, 



VANIKORO AFRICANA, new species. 

 Plate 36, fig. 11. 



Shell small, translucent, bluish white. Nuclear whorls one and a 

 half, well rounded, smooth. Postnuclear turns one and a half, well 

 rounded, ornamented with many decidedly retractive axial riblets 

 which are stronger and more distantly spaced on the first turn than 



