16 ATllNUS. 



B. Belangeri, Kiener, PI. 6, figs. 94, 95. 



Whorls smooth, polished, with distant revolvino- grooves which 



are most apparent at the suture, and base of the body whorl ; 



yellowish, with waved longitudinal faint chestnut lines. 



Length, •9-r4 inches. 



Arncan, Ceylon, 



Ji. polita, Desh. (lig. 95). is this species, figured from a faded 



specimen. 



B. DiLUTA, Kranss. PI. fi, figs. 96, 97. 



"Whorls with revolving strijie; Avhitish, lower part of body 

 whorl longitudinally flamed with chestnut-brown ; columella 



truncate at l)ase. Ijcngth, 1 inch. 



Natal, So. Africa. 



Painted like B. KemiHammea., Reeve, but immediately disting- 

 uished from that species by its narrow Terehro-WkQ form and 

 truncate columella. This last character suggests the succeeding 

 species which, however, is peculiar in having a thickened lip, 

 minutely dentate within. It is possible that they are identical, 

 and that 7>. dilnta lias a thin, unarmed lip because the specimens 

 are not adult. Von Martens has described a var. mediole^vU 

 (fig. 97), in which the revolving grooves do not occur on tlie 

 middle of the body whorl — a character of no importance. 



?itb^'<nns Adinus, II. ;i-ul A. .\J;iiiis. 



B. TRUNCATA, Reeve. PI. 6, fig. 98. 



Yellowish white; whorls striated aliove and at base. 



Length, l-25-l"5 inches. 



Habitat unknown. 

 The characters of this species are those of the subgenus. It 

 is jjrobabl}' So, African. See remarks under preceding species. 



Unidentified and Doubtful Species. 

 B. ELONGATULA, Antou. Habitat unknown. 



B. icTERiCA, Solander. 11. and A. Adams' Genera. 



B. ossEUM, Menke. The type specimen is lost. 

 B. VELATA, Gould This is undoubtedly a Nassa gaudiosa. 

 B. Tamstana, Dunker. Guinea, W. Africa- 



B. CuMiNOiANA, Danker Habitat unknown. 



B. ELEciANS, Dunker. Habitat unknown. 



B. Lymneana, a. Ad. = Volutharpa. 



