46 LAND AND FRESHWATER 
“ Obs. L’Heliv simulans, Adams (Reeve, Icon. f. 351), donne 
une assez bonne idée de cette espéce. 
“ 1’H. orcula, Benson (Reeve, f. 1176), en différe par sa spire 
beaucoup plus élevée. L’H. barakporensis, Ptr. (Reeve, f. 816), et 
VH, infula, Benson (Reeve, f. 783), de !Hindoustan, appartiennent 
peut-étre 4 la méme section. La coloration et le genre de costulation 
de la coquille rappellent les Streptawis. Peut-étre est-ce un 
Agnathe ?” 
H, orcula is the only shell above mentioned that approaches it in 
its sculpture, but it has a strong epidermis. I am sorry that the 
two specimens in Mr. W. T. Blanford’s collection are not quite 
perfect, and not in a state to take off the glass slide on which they 
are gummed, so that I cannot give an enlarged figure of it. 
“ Var. 3. grandis, alt. 3:5 mill, diam. 3. 7’. tenuis, non iridescens 
linea alba, pellucente, ad suturam. 
‘* Hab. Les Nicobar, probablement Kamorta (Roepstorf). 
Hewrx (SagprvetLa) microrrocuus, Morch, Journ. Conch. Oct. 
1876, p. 358. 
“ Differt a precedente testa obtuse angulata, obtecte perforata, nec 
umbilicata, columella recta ; linea suturali, alba pellucente. 
** Alt. 3°5 mill., diam. fere 3. 
“* Hab, Avec Vespéce précédente: un exemplaire (Roepstorf). Les 
Sagdinella doivent étre rangés, peut-étre, pres des Streptaais, d’aprés 
leur sculpture: quant 4 la forme, elles ressemblent & de jeunes 
Bulimus (Ena).” 
Professor Steenstrup informs me this species is not in the museum 
at Copenhagen, nor could he find it in the collection of « friend of 
the late Dr. O. Morch ; being a single specimen, it may be in Mr. 
Roepstorf’s collection. 
Genus ANADENUS. 
(Plates VI. & VII.) 
The genus Anadenus was described by Von F. D. Heynemann in 
the ‘ Malakozoologische Bliitter,’ 1863, p. 137, pl. i., giving figures 
of the shell of two species with their lingual dentition. The speci- 
mens were collected and brought home by the Schlagintweits from 
India, and the original description is therefore from spirit-specimens 
as follows :— 
“ Anadenus (without a tail-gland), 
‘*« Body extends the whole length of the sole. Mantle covering 
the fore part of the body. Respiratory orifice behind the middle of 
the right side of the mantle. Generative orifice behind the right 
eye-tentacle. Two upper and two lower retractile tentacles. Back 
flatly rounded, without a keel and without a tail-gland. Sole in 
three parts. The jaw with close-set cross ribbing ; the curve of the 
teeth of the radula almost in a plane. ‘Tooth-plates of rectangular 
form, with the sides projecting. Middle tooth equilateral, with side 
points or prickles. Side teeth hardly differing from the middle 
