239 



is intermediate between E. arcuata and E. vibeoo, being less convex 

 in outline than the former, while the latter is more fusiform. 

 The shell figured by Reeve, which must be regained as the type, 

 is larger than the specimens represented in Conch. Ind. and 

 Conch.-Cab., which measure only 17 X 7 mm. 



210. Ena arcuata, Kuster. 



Bulimus arcuatus (Hutton), Kiister, Conch.-Cab., Bulimus, 1845* 

 p. 56, pi. 17, figs. 1, 2 ; Pfeiffer, MOD. Helic. Viv. ii, 1848, p. 118 ; 

 Reeve, Conch. Icon, v, 1849, Bulimus, pi. 67, fig. 478 ; Han- 

 ley & Theobald, Conch. Ind. 1870, pi. 20, fig. 2 ; var., fig. 7. 



Bulimulus (End) arcuatus, Adams, Gen.Rec. Moll, ii, 1855, p. 160. 



Bulimus (Ena) arcuatus, Pfeifler, Malak. Blatt. ii, 1856, p. 154. 



Buliminus (Napaeus) arcuatus. von Martens. Die Heliceen, ed. 2, 

 1860, p. 234. 



Napceus arcuatus, Theobald, J. A. S. B. xlvii, 1878, p. 145. 



Buliminus ( Petraeus) arcuatus, Nevill, Hand List, i, 1878, p. 136. 



Bulimina (Ena) arcuata, Pfeiffer & Clessin, Nomencl. Helic. Viv. 

 1881, p. 291. 



Buliminus (Ena} arcuatus, Kobelt, Conch.-Cab., Fam. Buliminidae, 

 1900, p. 684, pi. 103, figs. 14, 15. 



Buliminus (Subzebrinus) arcuatux, Kobelt & Mollendorff, Nachr. 

 Deuts. Malak. Ges. 1903, p. 47. 



Original description : " B. testa sinistrorsa, rirnata, ovato- 

 conica, tenuiuscula, subnitida, minutissime costulato-striata, 

 corneo-flava, lutescenti-arcuatim fasciata; anfractibus 7 convexi- 

 usculis ; apertura oblongo-ovali, intus flava ; peristomate pallide- 

 corneo, margine sinistro arcuato, columellari breviter dilatato." 

 (Kuster.} 



Length 15 mm. ; diam. 6 mm. (Pfeiffer.) 



Hob. India : Himalayas (v. d. Busch) ; Mahassu, ~W. Himalayas 

 (Hutton)-, Kashmir (Theobald); Simla and Narkandi (Oldham, 

 Stoliczka). 



Fig. 89. Ena arcuata. f . 



Kobelt gives a poor copy of the figure iu Conch. Ind., repre- 

 senting E. nivicola, which is supposed to be cospecific with 

 arcuata, but which is certainly distinct. Pfeiffer and Clessin 

 quote Pupa sylvatica, of Hutton, as a variety of arcuata, with 

 Bulimus nivicola as a synonym. The habitat " Moulmain " given 

 in Conch. Ind., Theobald points out, is an error. Ena arcuata 



