128 LAND AND FRESHWATER 
and this may have led Mr. Blanford to think the locality on that side. 
The animal is thus described in my note-book :—“ Pale light yel- 
lowish ochre. Head rather darker. Eye-tentacles rather thick at 
the base and long. Extremity of foot and lower part of the body 
very light, short, flat, and rounded behind, with a gland; underpart 
of foot with a dark furrow ; slight colour at extremity of foot. The 
shell is pale yellowish green; older specimens pale grey, with an 
ochraceous tint.” 
These two species castor and polluw are very closely allied, and 
can only be considered varieties—castor, first described, being the 
typical form, though pollux is the most abundant. 
I have been able to soak out the radula of a specimen from 
Nongkulong. It is similar to that of O. cycloplax and orobia, 
nearest to the latter; the laterals perhaps rather longer and more 
numerous. 
OxyvtEs BLANFoRDI, Theobald. 
Helix blanfordi, Theob. J. A. 8. B. 1859, vol. xxvii. p. 308; Pfr. 
Mon. Hel. vol. v. p. 118; Hanley, Conch. Ind. p. 27, pl. lx. figs. 1, 
2, 3. 
Hemiplecta (sec. D) blanfordi, Theob. Supp. Cat. p. 22. 
Nanina (Hemiplecta?) blanfordi, Nevill, Hand-list, p. 48. no. 265, 
Oxytes blanfordi, Godwin-Austen, J. A. 8. B. 1880, p. 157. 
Original description :—* Testa winbilicata, depressa, late, sive costu- 
late striata, evilissime et minutissime flecuose granulata, ad periphe- 
ream undata ; ferrugineoc-cornea, acute carinata, linea peripherialr 
tenui albida cincta, ad suturam anfractus ultimi rotunda. Anfract. 
54, ultimo circa umbilicum vie perspectiveum tumido. Apertura an- 
gulate lunari. Perist. acuto ad umbilicum parum dilato, crassiusculo. 
“ Hab. prope Darjiling. Diam. 0°96, alt. 0°35. A young spe- 
cimen of H. cycloplaw measures diam. 0°96, alt. 0°45.” 
Umbilicus not so open as in O. owytes and cycloplaw, but more so 
than that of O. pollux. 
OXYTES SHANENSIS, N. sp. 
Hemiplecta (sec. D)? = blanfordi, Theobald, Supp. Cat. p. 22, 
from Upper Salwin, Shan States. 
Locality. Shan States (Fedden). 
Shell openly umbilicated, depressed, sharply keeled, rather flat 
below, thin ; sculpture fine, transverse, well-marked striw arranged 
in about 14 wavy indistinct spiral bands; colour dark ochraceous 
or pale umber, covered with a thin epidermis; spire depressedly 
conoid, apex obtuse; suture linear; whorls 5, flat above, the last rather 
compressed below near the periphery, regularly but rather closely 
wound ; aperture suboblique, semilunate ; peristome sharp, curved 
on lower margin; columellar margin suboblique and but slightly 
thickened. 
Size: maj. diam. 28-0, min. 26:0, alt. axis 7-0 mm. 
53 Lbs) ty ne OBy,,.55 0-28 inch. 
