WHITE.] CATALOGUES OF FOSSILS. 269 



14. Grypluca intdieri Morton. Besides forms like those figiirecl by 



]\lorton, lloemer, and other authors, there are in this collection 

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

 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 laminae. 



15. Exogyra arietina Eoemer. 

 IG. Exogyra texana Eoimer. 



17. Exogyra ponderosa Eoemer. 



18. Exogyra costata Say. 



19. Keithea tcxana Eoemer. 



20. Inoceramus . Undetermined species. 



21. Lima leonensis Conrad. 



22. Trigouia emoryi Conrad. 



23. Protocardia texana Conrad. 



24. Anatina — . Undetermined species. 



25. lAopistha (Cymella) . Undetermined species. 



2G. CucuUea terminalis Conrad. 



27. Gyrodes . Undetermined species. 



28. Pleurotomaria . Undetermined species. 



29. Turrifella marnocM. White. Described and figured in another part 



of this volume. 



30. Turritella . Undetermined species. 



31. Kerina;a . Undetermined species. 



32. Tiirbonilla? . Undetermined species. 



33. Ammonites pcruviamis Von Buch. 



34. Ammonites flaccidicosta Eoemer. 



35. Ammonites woolgari ISlajitellA 



36. Turrilites brazosensis Eoemer. 



LIST OF CRETACEOUS FOSSILS SENT BY D. H. WALKER TO THE S:jnTH- 

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



1. Asirocoenia sancta-saha? Eoemer. 



2. Toxaster texana Eoemer. 



3. Toxaster elegans Shumard. 



4. Diadema texanum Eoemer. 



5. Gyphosoma texanum Eoemer. 

 G. Hippurites texanus Eoemer. 



7. RadioUtes austinensis Eoemer. 



8. Tercbratula wacoensis Eoemer. 



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 in 

 Marcy's Exploration of the Eed Eiver of Louisiana, but the 

 description is brief and the figiire i)oor. 



12. Ostrca {Alectryonia) carinata Lamarck? This is the species which 



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

 No. 13 of the preceding list, but it is probably specifically distinct. 



13. Gryphaja pitcheri Morton. Tlie specimens, as usual, present consid- 



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

 kno^Ti. 



14. Exogyra vallceri White. Described and figured in another part of 



this volume. 



15. Exogyra Iccviuscula Eoemer. 



