﻿638 ME. L. T. DALTON OX THE [iRoV. IQOS^ 



whorl large, broadly rounded, smooth except for transverse striations 

 near the aperture. Inner lip callous and reflected. 



Dimensions in millimetres. — Maximum height =80 ; 

 maximum width =66. 



Localities. — Yar. oblonga, Desh., a mile south of llagyisan 

 (Minbu district) and mile-post 31, Minbu-ISTgape Eoad ; var. splie- 

 rica, Desh., near Subagyidan. 



jS'atica (Ampulli]S"a) poxderosa, Deshayes. 



1829. Ampullaria ponderosa, Deshayes, ' Description des Coquilles Fossiles des 

 Environs de Paris ' vol. ii, p. 140 & pi. xvii, figs. 13-14. 



1866. Katica ponderosa, Desha^-es, ' Description des Animaux sans Vertebres 

 decouverts dans le Bassin de Paris ' vol. iii, p. 72. 



Description. — Shell very robust, of moderately-large size (full 

 height = about 48 millimetres), with a depressed conical spire and 

 large body-whorl. Spire of four or five whorls : the earlier rounded, 

 the penultimate slightly angular from posterior flattening. Aperture 

 elongate, inner lip apparently not expanded. Shell smooth, or 

 covered with fine transverse striations. 0- ;_' v^ 



Remarks. — The specimen is waterworn, and therefore its 

 characters are imperfectly known ; but the ponderous shell and 

 slightly -elongate aperture afford marked characteristics for 

 identification. 



Locality. — West of Kyetubok (Minbu district). 



Family TuePvItellii)^. 



TUERITELLA Sp. 3. 



Description. — A fairly-large species, elongate, regularly conical ;. 

 the earlier whorls are somewhat flattened, the later rounded. 

 Marked ornamentation, consisting of three to eight spiral tuber- 

 culate ribs, with others intercalated between them ; smooth or nearly 

 so on the earlier whorls, tuberculate and stronger anteriorly. Two 

 twinned ribs are situated in the shallow suture- canal on the later 

 whorls, being single on the earlier whorls. ^, ^^ 



Remarks. — The specimens are too imperfectly preserved for 

 accurate determination ; but the basal whorl is somewhat similar in 

 its characters to that of T. sulcifera, Deshayes^ ; the latter, however^ 

 has not such prominent tuberculate ribs as in the present form. 



Localities. — South-west of Thabyemyoung (Thayetmyo dis- 

 trict) ; and (?) near Subagyidan (Minbu district). ^ 



Family Ceeithiid^. 



Ceeithitjm (?) sp. (PI. LIY, fig. 9.) 



Description. — Shell poorly preserved and fragmentary, turretted, 

 with a row of large tubercles along the suture, and a very faintly- 



1 ' Description des Coquilles Fossiles des Environs de Paris ' vol. ii (1829 

 p. 278 & pi. xxxr, figs. 5-6, pi. xxxvi, figs. 3-4, pi. xxxvii, figs. 19-20. 



