EULOTA. 199 



thin, the surface smootliish, generally with minute spiral striic ; 

 colour varying from sub-translucent white to light brown or 

 yellowish, often with a supra-peripheral band (rarely several 

 bands). Whorls 5-6, convex, the last hardly descending in 

 front. Aperture round-lunate, toothless ; peristome thickened 

 within and expanded, dilated at columellar insertion. 



"Jaw arched, with 4-11 ribs denticulating the concave margin. 



" Radula of E. frutimra having the median cusp of middle 

 teeth as long as basal plate, side cusps subobsolete. Laterals 

 with longer mesocones. Marginals with long bitid inner and 

 on the outer ones bitid outer cusps. 



" Genitalia : penis short, swollen, passing into a long epi- 

 phallus which receives vas deferens and retractor, but laclcs 

 Jlagelliim. Dart sack globose, containing a round, conical dart, 

 and communicating at base with an empty accessory sack which 

 bears the mucus glands ; these consist of 2-4 oval glands, closely 

 bound together, and flattened on their adjacent sides, their ducts 

 uniting into one canal which opens into the accessory sack. 

 Duct of spermatheca long, inserted high on vagina. 



" Eidota is here used for a considerable number of oriental 

 snails having essentially the organisation of the European 

 E. fruticam. The penis lacks flagellum ; the dart sack generally 

 bears an accessory empty sack into which the many- or few- 

 lobed mucus gland empties ; and the dart is round in section 

 or but little tlatteued, the shell being globose with conoidal, 

 though low, spire.*' {PiUbnj.) 



171. Eulota bolus, Benson. 



llr!ix bolus, Benson, A. M.N. II. (2) xviii, 1856, p. 252; Theohald, 

 J. A. S. B. xxvi, 1857, p. 242 ; Blanford, op. cit. xxxiv, 1865, 

 p. 89; ILmley & Theobald, Couch. Iiid. 1870, pi. 53, fig. 7. 



Ilcli.v (Dorcasia) bolus, von Martens, Die Heliceen, ed. 2, 1860, 

 p. 107 ; Nevill, J. A. S. B. xlvi, 1877, p. 22 ; ibid, in Anderson, 

 Zool. Res. Two Exped. West. Yunnan, i, 1878, p. 881 ; Tapparone 

 Canefri, Ann. Mus. Civ. Geneva, ser. 2, vii, 1889, p. 327 ; Tryon, 

 Man. Couch, ser. 2, iii, 1887, pi. 48, fig. 77. 



IMix (Planispira) bolus, Xevill, Hand List, i, 1878, p. 80. 



Original description : — " Testa anguste umlulicata, globosa, 

 tenuis, oblique striatula, strns minutissimis confertissimis spira- 

 libus sub lente sculpta, nitidula, translucens, pallide cornea, inter- 

 du2i fascia unica rufa supra peripheriam ornata ; spira couoidea, 

 apice obtusiuscula ; sutura leviter impressa ; anfr. 5 convexiusculi, 

 ultimus non descendens, iuflatus ; apertnra vix obliqua, rotundato- 

 lunaris ; peristomate tenue, expansiusculum, albidum, margine 

 columellari latiore, superne umbilicum semitegente. 



"Diam. maj. 14-15^, min. 12-14, alt. lOi-lU mill. Apert. 

 majoris 9 mill, longa, 8 lata." (Benson.) 



hah. Burma: Prome {Theobald, Fea), Thyet Myo (StoIiczl-a\ 

 Pagan (Anderson). China : Ponsee and Sanda, Tunnan (Anderson). 



