NERITA. 31 



Var. ANTiQUATA, Recluz. Fig. 17. 



Closely wrinkled by impressed growth-lines, aperture and colu- 

 mella orange-tinted. 



Var. AURORA, Dunker. Fig. 21. 



Closely wrinkled as in Var. antiquata, but the shell less transverse, 

 with somewhat elevated spire ; white, with three yellowish brown 

 bauds mottled with chestnut, aperture orange-tinted. 



Var. Umlaasiana, Krauss. Fig. 18. 



More obliquely elongated, the outer lip more extended upon the 

 spire above, dark olivaceous, mottled with black. 



So. Africa. 

 Var. RuMPHii, Recluz. Figs. 8-11, 16, 22, 28. 



Smaller, usually closely spirally striate, coloring often in definite, 

 wide or narrow bands, but varying to unicolored, mottled or 

 interruptedly banded. 



X. Doreyana (fig. 23) and X. Giiamensis (tig. 22), of Quoy, are 

 synonyms. 



M. maxima, Gmel. PI. 7, figs. 24, 25. 



Thick, lightly decussated by incremental strise and evanescent 

 spiral sulcations, yellowish grey interruptedly banded with black, 

 and irregularly strigated and maculated with black and white ; 

 interior of outer lip numerously denticulate, columella smooth, 

 bearing three jDrominent teeth on its edge, tinged with yellow. 



Diam. 36 mill. 



Central Pacific Ocean. 



Var. OBATRA, Rqcluz. Fig. 25. 



Shell olivaceous black, obscurely maculated. 



Var. trifasciata, Montr, from New Caledonia, appears to repeat, 

 on a darker ground-color the banded condition of the type. 



N. BisECTA, Reeve. PL 7, fig. 26. 



Shell with strong revolving ridges and equal intermediate sulci, 

 the ridges black and divided in the middle by an incised line, sulci 

 yellowish grey ; outer lip many-toothed within, teeth of the extrem- 

 ities larger, columella smooth, yellowish, the margin three-toothed. 



Diam. 23 mill. 



West Africa. 



N. AscENsiONis, Chemn. PL 7, fig. 27. 



Shell with strong spiral ridges and somewhat wider sulci, yellow- 

 ish grey, strongly tessellated with black on the ridges, outer lij) 



