EXPLANATION OF PLATE 2. 



Page. 

 Fig. 1. Caryocrinus globosus Troost, side view 11 



2. Caryocrinus bulbulus Miller and Gurley, side view of the specimen 



described by Troost as Caryocrinites hexagonus 11 



3. Caryocrinus milligani Miller and Gurley, side view of a large individual. 



This is from Troost 's type of Caryocrinites meconideus 10 



4. 5. Top and side views of the same specimen. 



6. Top view of another specimen. X2. 



7, 8. Side and top views of the form described by Troost as Caryocrinites 



granulatus 10 



9. Side view of a young individual described by Troost as Caryocrinites 



insculptus 10 



10. Pentremites elegans Lyon, side view of the specimen described by 



Troost as Pentremites tennesseese. X 1^ 14 



11. 12. Basal and top views of the same specimen. 



13. Pentremites pyri/orrnis Say, side view. X lj 13 



14, 15. Basal and top views of the same specimen. Xlj. 

 120 



