NERITIXA. 



X. XorcB-Caiedonice, Baird (tigs. 67, GS), is a syuoiiym. My 

 figure of K. drida is unfortunately taken from Sowerby's Thesaurus* 

 and is certainly not typical, Baird's figure being exactly like N. 

 Novce- Caledonia' in all its features exce])t being darker colored. 



Unfigured Species of JVerita. 

 N. TENEBROSA, Rccluz. Solo /., N. of Bomeo. 



N. coRROSULA, Recluz. N. Guinea. 



N. 8CABRELLA, and N. RiNGicuLA, Phil. Hob. unknoivn. 



N. HiLLEAXA, Dunker. Samoan Is. 



N. Nov^-HiBERNiiE, Lesson. K. Ireland. 



Genus NERITINA, Lam. 1801). 

 Section Np^ritina (sensu stricto), Swaiuson. 1840. 



N. GAGATEs, Lam. PL 10, figs. 77-79, 97, 98 ; PI. 11, fig. 6. 



Striulate, polished, olivaceous or brownish black, with close black 

 zigzag lines; aperture bluish white. Diam. 18-26 mill. 



Mauritius, Seyehelles, Isle of Bourbon. 



The synonyms are J\\ liturata, Recluz, N. Caffra, Gi'ay, N. zigzag, 

 Morelet. Von IVIartens has vars. minor (fig. 78), and subplanispira 

 (fig. 79), the latter for depressed specimens. I think that N. ful- 

 gurata, Desh. (figs. 97, 98), from Isle of Bourbon, described from a 

 single specimen, is simply a light-colored examj^le of this species. 



N. Natalensis, Reeve. PI. 10, figs. 80, SI ; PI. 11, fig. 9. 



Striulate, somewhat shining, yellowish brown with oblique black 

 strigations, more or less decurrent or reticulately confluent; aper- 

 ture bluish white. Diam. 19-28 mill. 



Mozambique to Natal. 



It is N. zebra, Krauss. N. Moquiniana, Recluz (fig. 9), is an un- 

 identified si^ecies from "Islands of the South Sea," which appears 

 to be closely related. 



N. variegata. Lesson. PI. 10, figs. 82-86; PL 12, figs. 23, 24. 



Somewhat shining, variegated with yellowish brown and black, 

 usually in an irregular net-woi'k jiattern, the meshes large or small, 

 sometimes the black reticulations form irregular broad bands, and 

 occasionally they cover the entire surface so as to make it nearly 

 unicolored ; aperture whitish or bluish white, the columella with a 

 tinge of orange-l)rown. Diam. 16-23 mill. 



East Indies, Polynesia. 



