212 HELICID^!. 



less produced aperture. The Darjeeling specimen measures : diam. 

 12-25, axis 5-25 mm. Specimens from Darjeeling in my collection 

 measure : diam. 10-5, axis 5, but they are distinctly keeled. A 

 form found by Dr. Anderson abundantly at Ponsee and Ava is 

 said to be nearer the Darjeeling form ; the spire being slightly 

 higher, with the apex more central. 



A variety is recorded by Nevill (Hand List, i, 1878, p. 74) 

 from Great Cocos Island (Stoliczka) and Little Cocos Island ( Wood- 

 Mason), but no characters or dimensions are mentioned. 



Var. radleyi, Jousseaume. 



Hygromia radleyi, Jousseaume, M<m. Soc. Zool. France, vii, 1894, 



p. 284, pi. 4, fig. 6. 

 Helix huttoni, var. radleyi, Sykes, Proc. Malac. Soc. London, iii, 1898, 



p. 161. 



Diam. 9-2-11, alt. 4-6-5 mm. 



Hob. Ceylon : Nuwara-Eliya (Simon), Uda Pussellawa (Qollett). 



Scarcely separable from typical huttoni, but it appears to be 

 smaller, more elevated in the spire, and somewhat more closely 

 coiled. I possess specimens from Uda Pussellawa, measuring: 

 diam. 10-5, alt. 5*5 mm., being intermediate, therefore, between 

 Jousseaume's and Sykes' specimens as regards elevation of spire. 

 Nevill records a variety (Hand List, i, 1878, p. 73) from Fort 

 McDonald, Ceylon, which is probably identical with Jousseaume's 

 variety. 



185. Plectotropis oldhami, Benson. 



Helix oldhami (Benson), Theobald, J. A. S. B. xxvi, 1857, p. 248 



(nom. nud.) ; Benson, A. M. N. H. ser. 3, iii, 1859, p. 185 ; 



Blanf ord, J. A. S. B. xxxiv, 1865, p. 89 ; Hanley & Theobald, 



Conch. Ind. 1870, pi. 15, fig. 7. 

 Helix (JEgista) oldhami, von Martens, Die Heliceen, ed. 2, 1860, 



p. 122. 

 Helix (Plectotropis) oldhami, Nevill, Hand List, i, 1878, p. 73; ibid., 



in Anderson, Zool. Res. Two Exped. West. Yunnan, i, 1878, p. 878. 

 Helix (Plectotropis (JEgista)) oldhami, Tryon, Man. Conch, ser. 2, 



iv, 1888, p. 61, pi. 13, fig. 25. 

 Eulota (Plectotropis) oldhami, Pilsbry, Man. Conch, ser. 2. ix, 1895, 



p. 209. 



Original description : " Testa late umbilicata, orbiculato-de- 

 pressa, tenui, oblique irregulariter flexuoso-striata, cornea?; spira 

 vix elevata, vel depressissime conoidea, apice exsertiusculo, obtuso, 

 sutura impressa; anfractibus 6J lente crescentibus, planulatis, 

 ultimo antice breviter rapide descendente, superne obtuse cari- 

 nato, subtus convexo, circa umbilicum profundum perspectivum 

 angulato; apertura obliqua, subcirculari, peristomate expansiusculo, 

 reflexiusculo, marginibus conniventibus, approximatis." 



" Diam. major 13, minor 11, axis 6 mill/' (Benson.) 



