white.] CATALOGUES OF FOSSILS. 269 



14. Gryplicca pitcheri Morton. Besides forms like those figured by 



Morton, Bceiner, and other authors, there are in this collection 

 some large examples that are doubtless only a variety of G. pitcheri. 

 The radiating prominence common to the larger valve of most of 

 the typical examples is in this variety very prominent, angular, 

 and roughened by occasional projecting or vaulted laniinse. 



15. Exogyra arietina Boeiner. 



16. Exogyra texana Boemer. 



17. Exogyra ponder osa Boemer. 



18. Exogyra costata Say. 



19. Xeithea texana Boemer. 



20. Inoceramus . Undetermined species. 



21. Lima leonensis Conrad. 



22. Trigonia emoryi Conrad. 



23. Protocardia texana Conrad. 



24. Anatina . Undetermined species. 



25. Liopistha (Cymella) . Undetermined species. 



26. CucaUea terminalis Conrad. 



27. Gyrodes . Undetermined species. 



28. Pleurotomaria . Undetermined species. 



29. Turritella marnochi. White. Described and figured in another part 



of this volume. 



30. Turritella . Undetermined species. 



31. Nerincea . Undetermined species. 



32. Turbonillaf . Undetermined species. 



33. Ammonites peruvianus Yon Buch. 



34. Ammonites flaccidicosta Boemer. 



35. Ammonites woolgari Mantell.? 



36. Turrilites brasosensis Boemer. 



LIST OF CRETACEOUS FOSSILS SENT BY D. H. WALKER TO THE SMITH- 

 SONIAN INSTITUTION, FROM NEAR SALADO, BELL COUNTY, TEXAS. 



1. Astrocoenia sancta-sabw Boemer. 



2. Toxaster texana Boemer. 



3. Toxaster elegans Shumard. 



4. Diadema texanum Boemer. 



5. Cyphosoma texanum Boemer. 



6. Hippurites texanus Boemer. 



7. Eadiolites austinensis Boemer. 



8. Terebratula icacoensis Boemer. 



9. Ostrca congesta Conrad. 



10. Ostrea . A large undetermined species. 



11. Ostrea (Alectryonia) subovata Shumard. % This appears to be iden- 



tical with Dr. Shumard's species as figured and described hi 

 Marcy's Exploration of the Bed Biver of Louisiana, but the 

 description is brief and the figure poor. 



12. Ostrea [Alectryonia) carinata Lamarck? This is the species which 



has been usually referred to 0. carinata Lamk., and the same as 

 ]Sb. 13 of the preceding Ust, but it is probably specifically distinct. 



13. Gryphcea pitcheri Morton. The specimens, as usual, present consid- 



erable variety; this being the most variable species of the genus 

 known. 



14. Exogyra vaTkeri White. Described and figured in another paafc of 



this volume. 



15. Exogyra Iceviuscula Boemer. 



