N.ASSA. 23 



iV. Pfeijf'eri, Phil. (IM. 11, fig. 144), has been rcCcm-d to this 

 speoies as ti variety by Mavrat and otiicrs; I do not think, how- 

 ever, that it can be placed in tiie smnc uroiip nt ail, as all its 

 atlinities are with Zeuxin. 



X. TENUIS, E. A. Smith. PI. 7, figs. 4, 5. 



Yellowish white, mottled with yellowish brown, darker at tlic 



sntnre. Length, 20 mill. 



Jiipan ; China. 



This species was described by Lischke as N. JajMnica, after- 

 wards changed to N. balteata, on acconnt of the previous use of 

 the fii'st name by Mr. A. Adams. N. haUeata being preoccupied 

 by Pease, Mr. E. A. Smith has referred the species to his N. 

 tenuis, which was originally described without reference to these 

 relationships. Mr. Smith also refers the N. Japonica, Adams, 

 here, doubtfully, the type having disappeared from the Cuming- 

 ian collection. I fear I must add to this confusion by doubting 

 the identity of Mr. Smith's species with balteata, Lischke, 

 although it appears to correspond well with Adams' description 

 of Japonicn. 



N. sufflata, Gould (not figured), appears from the desci-iption 

 to be identical. 



The species is vei-y closely allied to N. mxtahili.^, L. 



X. L^viGATA, Marrat. PI. 7, fig. 6. 



Yellowish white, with darker strigations, which tend to mass 

 into rcA^olving bands in some specimens. The suture is some- 

 times noduled. Length, -75 inch. 



China. 



The spire is. more elevated, the shell more solid than the last 

 species; the coloration and polished surface allies it to the 

 mutabilis group. 



N, coRONATA, Brug. PI. 7, figs 7, 8. 



White, olive or chestnut; with usually a white median zone 

 on the dark vai'ieties or a darker zone on the light colored 

 specimens. Length, 1-1-2 inches. 



Madagascar, Jam, Philippines, etc. 



N. Bronni, Phil. (fig. 8), is not distinct. 



