PLECTOTBOPIS. 211 



generic rank. Without in any way presuming to criticise Prof. 

 Pilsbry's views, the conchological characters seein to be correlated 

 with certain anatomical details. In Plectotropis a flagellum occurs 

 which is wanting in Eulota s.s. In the former the epiphallus is 

 long and the duct of the spermatheca is bound to the oviduct, in 

 the latter it is inserted high on the vagina and the epiphallus is 

 short. In Plectotropis the jaw possesses 10-19 ribs, in Eulota it 

 is provided with only 4-11 ribs. 



184. Plectotropis huttoni, Pfeiffer. 



Helix orbicula, Button, J. A. S. B. vii, 1838, p. 271 (non H. orbicula, 



Orbigny, 1835). 

 Helix huttoni, Pfeiffer, Symb. Hist. Helic. ii, 1842, p. 82; ibid., 



MOD. Helic. Viv. i, 1848, p. 202; Reeve, Conch. Icon, vii, 1852, 



pi. 129, fig. 786; Blanford, J. A. S. B. xxxiv, 1865, p. 89; 



Hanley & Theobald, Conch. Ind. 1870, pi. 15, fig. 8 ; Theobald, 



J A. S. B., xxxix, 1870, p. 395 ; Pfeiffer, Conch.-Cab., Helix, iii, 



1881, p. 399, pi. 144, figs. 9, 10. 



Fruticicola huttoni, Theobald, J. A. S. B. xlvii, 1878, p. 144. 

 Helix (Plectotrojns) huttoni, Nevill, Hand List, i, 1878, p. 73 ; Try on, 



Man. Conch, ser. 2, iv, 1888, p. 54, pi. 11, fig. 56. 

 Eulota (Plectotropis} huttoni, Pilsbry, Man. Conch, ser. 2, ix, 1895, 



p. 209. 



" T. umbilicata, orbiculato-convexiuscula, subdiaphana, pallide- 

 cornea, epidermide scabra induta ; anfr. 6 convexiusculi, ultimus 

 angulatus, antice vix descendens ; umbilicus latiusculus, per- 

 spectivus ; apertura obliqua, lunato-rotundata ; perist. simplex, 

 niarginibus conniventibus, dextro recto, basali breviter reflexo, 

 columellari subdilatato, patente." (Pfeiffer.) 



" Diam. maj. 10, min. 9, alt. 5| mill." 



Hab. India: Simla and Landour (Hutton, Stoliczlca, Oldham) ; 

 D.irjeeling (Stoliczlca, Mainwaring) ; Kashmir (Theobald); Naga 

 Hills (Roberts); Dana Hills (Godwin-Austen) ; Shevroy Hills, 

 (my collection). Burma : Upper Salween Valley (Fedden) ; 

 Puppa Hills, near Ava (Blanford). China: Ponsee, Yunnan 

 {Anderson). 



Var. savadiensis, Nevill. 



Helix (Plectotropis) huttoni, var. savadiensis, Nevill, J. A. S. B. xlvi, 

 1877, p. 20 ; ibid., Hand List, i, 1878, p. 73 ; ibid, in Anderson, 

 Zool. Res. Two Exped. West. Yunnan, i, 1878, p. 879. 



Diam. 12-5, axis 5'25 mm. 



Hab. Upper Burma : Sawady (Anderson). 



Differs from the type by its more raised spire, stouter texture, 

 ;and less open umbilicus. Nevill considers the shell represented 

 in Conch. Ind. pi. 15, fig. 8, not to be a typical specimen from 

 the North-West Himalayas, but rather a specimen from -Darjeeling. 

 The former, he states, is a smaller, more rounded, and less solid 

 shell, scarcely keeled at the periphery, with a higher spire and 



p2 



