202 LAND AND FRESHWATER 
This shell is similar in general construction to Rhaphaulus pachy- 
siphon, Stol. & Theob., from Moulmain, but it is considerably larger 
and the sutural tube terminates closer to the peristome, while in the 
latter it is separated from it. 
RHAPHAULUS BLANFORDI, Benson. (Plate XLVII. figs. 4, 4a, 46, 
4¢.) 
Streptaulus blanfordi, Benson, A. M. N. H. 1857, vol. xix. 
p. 201; Pfr. Mon. Pneum. vol. ii. p. 92; Sowerby, Thes. Conch. 
vol. iii. pl. eclxv. figs. 8, 9; Godwin-Austen, Journ. A. 8S. B. 1876, 
p. 172, pl. viii. A. figs. 2, 3, 4; Hanley, Conch. Ind. p. 53, 
pl. exxxiii. figs. 5,6; Theob. Supp. Cat. p. 40; Nevill, Hand-list, 
. 302. 
f Var. a. IntuBUs, Godw.-Aust. 1. c. pl. vi. fig. 3. (Plate XLVII. 
fig. 5. 
7 B. TUBULUS, id. ]. c. pl. vill. fig. 4. (Plate XLVII. fig. 6.) 
Var. y. ToRruosus. (Plate XLVII. fig. 7.) 
Var. abnormal. (Plate XLVI. fig. 8.) 
Original description :—‘‘ Testa umbilicata, oblonga, polita, requ- 
lariter oblique striata, striis prope suturam submarginatam fortiori- 
bus, linets nonnullis spiralibus decussatis, fusco-cornea, translucente ; 
apice obtusiusculo ; anfractibus 5 conveaxiusculis, penultimo ventri- 
cosiort ; apertura magna, subcirculari ; peristomate simplici, reflexo, 
subrevoluto, marginibus callo parietal tenwi gunctis ; tubuli suturalis 
parte externa longa, pone junctionem labri breviter arcuatim elevata, 
suturam subtus echibente ; wmbilico impervio. 
“Long. 73, diam. 5 mill. Jong. apert. (peristomate incluso) 
4 mill. 
‘“‘ Hab. prope Darjiling, in montibus Himalayanis Sikkimensibus. 
Teste H. Blanford.” 
“. . . . In Streptaulus the tube is first internal, and on arriving 
at the aperture is suddenly reflected, and instead of forming an 
opening in the lip above the aperture as in R. bombycinus, or ending 
in a short upright tube as in #. lorraini or chrysalis, Pfr., it describes 
a short arch behind the lip, and then runs to some distance along 
the external suture, as in Alyceus. In texture and colouring Strept- 
aulus agrees with Rhaphaulus, not with Alyceus, and it is entirely 
deficient in the strangulation and swelling which characterize the 
anterior portion of the last whorl in all the species of the latter 
genus. It inhabits the same tract with Megalomastoma funiculatum. 
None of the larger Pupiform Cyclostomacea are known to travel 
farther towards the north-west.” 
