﻿626 us. L. V. DALTOy OX THE [NoV. I908, 



Eemarks. — The specimen suggests a resemblance to T. ivflata^ 

 Chemnitz (specimens preserved in the British Museum), living at 

 Port Curtis, which has a faintly- marjjed posterior keel, fine con- 

 centric striations, and very faint, hardly-perceptible radial striae ; 

 these radial striae may also have been present on the fossil 

 specimen. 



Locality. — Letpan choung, 10 miles east of Sawmyo (Pakokku 

 district). 



Family Macteidje. 



Mactri. PKOTOEEEVEsn (?) Xoetliug. 



1901. JIaetra protoreevesii. Xoetling, Pal. Ind. n. s. vol. i, no. 3, p. 236 & pi. xvi, 

 figs. 1-2. 



Eemark. — A cast only, with the chalky shell partly preserved. 

 Locality. — xS'oathe (Thayetmyo district). 



Family Mnn^. 

 CoEBiTLA sociALis, Martin. 



1879-80. Corbula soeialis, Martiu, ' Tertiarschicliten uuf Java ' p. 92 <t pi. xv, fig. 10. 

 1901. Corhula soeialis, Noetling, Pal. Ind. n. s. vol. i, no. 3, p. 239 & pi. xvi, 

 figs. 3-5. 



Locality. — Noathe (Thayetmyo district). 

 Family Pholadh).!:. 



JOTTANNETIA PBOTOCTJMIXGI, Sp. nOV. (PI. LIV, fig. 7.) 



Description. — Small ovoid shells burroTring in yellowish sandy 

 clay, valves gaping. Shell smooth behind, sculptured in front. 

 Metaplax developed behind the beaks, which are inconspicuous. 

 The sculptured portion of the valve is divided by a groove passing 

 forward from the beak to the antero-ventral angle ; on either side 

 are divergent close-set striae, curving backwards from the apex at 

 the central groove in the direction of the hinge-margin. 



Eemarks. — This species is exactly similar to Jouannetia 

 Cuminffi, Sowerby, junr. (as labelled in Brit. Mus. collections), living 

 in the Philippines and Port Jackson, except that it is smaller and 

 has finer sculpture ; it may perhaps be identical with J. semicaudata, 

 Desmoulins,^ from the Helvetian and Placentian of Piedmont and 

 other European localities. 



Locality. — A mile north of Toungu (Thayetmyo district). 



Gasteropoda. 

 Family Solaehdje. 



SOLAETDII sp. 



Apparently this does not belong to any of the species described 

 by Xoetling, but it is too poorly preserved for further deter- 

 mination. 



Locality. — A mile north of Toungu (Thayetmyo district). 



1 F. Saoco, ' MoUuschi Terziarii del Piemonte, &c.' pt. xxix (1901) p. 54. 



