358 ACIIATIXID^. 



ten in number, convex, arcuately couceutrically striated, columella 

 reflected, aperture small, lip simple; transparent straw-colour. 



"Whorls appear more convex than in B. (/racilis." (Reeve.) 



Hah. India : Moradabad. 



31S. Opeas prestoni, Syl-es. 



Oj)eas presto?!), Sykes, Proc. INIaluc. Soc. London, ill, 1898, p. 73 



pi. 5, %. 4. 

 Opeas viauritianxvi, var. prestoni, Pilsbrv, Man. Couch, ser. '2, 



xviii, 1906, p. 134, pi. 17, figs. 98-100. 



Origimd description : — " T. subperforata, elongato-cyliudrica, 

 ti'auslucida, tenuis, cornea vel cereo-cornea, apice obtusiusculo ; 

 anfr. 8|, plano-convexi, longitudinaliter lineis incrementibus 

 striati, ultinuis ^V longitudinis subsequans, sutura bene impressa, 

 apertura elongato-ovata ; peristoma simplex, acutum, margine 

 columellari ad basim breviter retiexo, perforationem fere tegente. 



" Alt. 11, diam. 3-25 mm. , alt. ap. 3, lat, ap. 1-S mm." [Si/Jces.) 



Hah. Ceylon: Uda Pussellawa (Fres'^oji). 



" The apex is uuich more obtuse and the earlier wborls are 

 broader than 0. gracilis, and the shell generally is more cylindrical 

 and not so needle-shaped ; it appears to be variable in colour. 

 [ have given the dimeusions of an average specimen ; one found 

 by Mr. Preston measures alt. 14, diam. 4 mm.'' (Sgl-es.) 



310. Opeas innocens, Preston. 



Opens innocens, Preston, Ilec. Indian Mus. v, 1910, p. 33, fig. 2. 



Original (hscripytion : — " Shell bluntly subulate, ^^■hitish, thin ; 

 M'horls 8, flat, rather sharpl}' shouldered above and below, trans- 

 versely striate with lines of growth ; sutures deeply impressed : 

 columella descending in a slight curve, extending above into a 

 thick, parietal callus which joins the margin of the lip above ; 

 labrum acute, simple, aperture elongatelj' ovate. 



"Altitude 5*5, diam. major 1*25, apert. alt. '75, diam. •25 mm."' 

 (Preston.) 



Hcd). Burma : Khayon Cave, near Moulmain (Annandale). 



Appears to be closely related to, if not identical with, 0. graciJe. 



320. Opeas latebricola, Beeve. 



Bulimus latebricola (Benson), Reeve, Conch. Icon, v, 1849, £?//t- 

 mux, pi. 80, fig. o7-2: Pfeitler, Mon. Ilelic. Viv. iii, 1853, p. 401 : 

 ibid., Concli.-Cab., Btdi)itus, 1853, p. 74, pi. 20, figs. 5,6; Ilanlev 

 >S: Theobald, Conch, hid. 1874, pi. 79, fig. 7. 



Bvlinms (Opeas) latebricola, Pfeifier, jMalak. Blatt. ii, 1856, p. 156. 



Steno(/yra I?) latebricola, Nevill, Hand List, i, 1878, p. 174. 



BuUndua (Hapalus') latebricola, Pfeifier & Cle.<^sin, Nomeucl. Ilelic. 

 Viv. 1881, p. 299. 



Opeas latebricola, Pilsbrv, Man. Conch, ser. 2. xviii, 1906, p. 162, 

 pi. 19, figs. 20, 23. 



