m 



Bibliographical Notices, 



12 



( Patchum Group. 

 ... -I Charee Group. 

 [ Oomia Group. 



less definitely inrlicated by Hyatt, 1888; Jackson, 1890; and by 

 Buckman and Bather, 1895, for other kinds of Mollusca. 



A strict comparison of the species from Cutch with those at present 

 known from other parts of the world is made throughout. The 

 Distribution of the fossil Trigonice in Cutch is thus given at pages 

 12 and 120:— 



a. (i) Cosfatcs (Section). 



1. Trigonia tumida, nov. 



2. T. prora, n. 



3. T. chariensis, n. 



4. T. propinqua, n. 



5. T. bi-evicostata, n. 



6. T. distincta, ii. 



7. T. acuta, n. 



8. T. dliosaeiiBis, n. 



9. T. nitida, n. 



10. T. sp. 



11. T. tenuis, n. 



12. T. parva, n. 



(ii) Derivatives of Costaice (Section). 



13. Trigonia Smeei, J. de C. Sowerhy. 



14. T. crassa, n. 



15. T. cardiniiformis, n. 



16. T. trapezifbrmis, n. 



17. T. retrorsa, n. 



b. GibbosfS (Group). 



18. Trigonia spinicostata, n. 

 e. Group of Trigonia v-scripta (Group). 



19. Trigonia dubia, n. 



20. T. v-scripta, u. 



21. T. recurva, n. 



d. UnclidatcB (Section). 



22. Trigonia remota, n. 



e. ScapJioidces (Section). 



{8e)isii latiore.) 



23. Trigonia kutchensis, n. 



24. T. exortiva, n. 



25. T. hispida, n. 



26. T. jumarensis, n. 



27. T. gracilis, n. 



f. Fseudo-qitadratcB (Group). 



28. Trigonia mamillata, n. 



g. Scabrce (Section). 



29. Trigonia ventricosa, F. Krauss, sp. 



30. T. pulchra, n. 



I. Nos, 1, 2, 25, 26 occur in the Upper Patchum beds. 

 II. Nos. 1, 3, 4, 5, 6, 7, 8, 9, 10, 23, 24, 27 occur in the Charee 



group. 

 in. None in the Katrol group. 



IV. Nos. 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 23, 28, 29, 

 30 occur in the Oomia group. 



}■• 



Oomia Group. 



Oomia Group. 



Oomia Group. 



Oomia Group, 



r Patchum Group. 

 ■■■ [Charee Group. 



Oomia group. 



Oomia Group. 



