KINDERHOOK FORMA TIONS OF MIS SO URI I 3 7 



11. Rhipidomella burlingtonensis H. A small form of this species is 

 present in the fauna, which agrees in all respects with specimens 

 from the Chouteau limestone. 



12. Puguax missouriensis Shum. The Sac limestone specimens of this 

 species are indistinguishable from specimens of the same species 

 from the Chouteau limestone at Chouteau Springs, Missouri. 



13. Athyris pronti Swall. This species has not been seen from the 

 Chouteau limestone of central Missouri, but is a common species in 

 the upper portion of the Kinderhook near Sulphur Springs, Mis- 

 souri. 



14. Athyris sp. undet. A small species somewhat resembling the 

 Devonian A. fultonensis occurs in the Sac limestone fauna, and the 

 same form is present in the Chouteau limestone at Providence, 

 Missouri. 



15. Cleiothyris sp. undet. Specimens of a small lenticular species 

 resembling C. hirsuta are present in the fauna, and the same 

 species occurs in the Chouteau limestone at Providence, Missouri. 



16. Spirifer peculiaris Shum. This is one of the commonest species 

 of the Sac limestone fauna, as it is also of the Chouteau limestone 

 of central Missouri. The same or a closely allied species occurs in 

 bed No. 5 at Burlington. 



17. Spirifer latior Swall.? This species was originally described from 

 the Chouteau limestone of Cooper county, Missouri, but no illustra- 

 tions of it have ever been published. The Sac limestone specimens 

 are identified thus with some doubt, but in any event a species iden- 

 tical with them occurs in the Chouteau limestone of Pettis county. 



18. Spirifer striatiformis Meek? This identification is only provisional, 

 but specimens of the same species occur in the Chouteau limestone 

 in Pettis county. 



19. Syringotkyris missouri H. & C. This species is only known else- 

 where from the Chouteau limestone at Chouteau Springs, Missouri. 



20. Cyrtina sp. undet. The same species has been recognized from 

 the typical Chouteau limestone. 



21. Dielasma sp. undet. A rather large, smooth species of this genus 

 is present in the fauna, which is apparently identical with specimens 

 from the Chouteau limestone of Pettis connty. 



22. Capulns sp. undet. Several forms of this genus are present in the 

 fauna which may belong to several distinct species. 



23. Corals and Bryozoa. Several undetermined species of corals and 

 biyozoaof little diagnostic value, occur in the fauna. 



24. Fish teeth. Fragments of fish teeth are not uncommon in the 

 fauna. 



