178 



Trans. Acad. Sci. of St. Louis. 



BURLINGTON, IOWA. — BURLINGTON GROUP. 



BOONVILLE, MO. — KEOKUK GROUP. 



Batocrinus 

 Batocrinus 

 Batocrinus 

 Batocrinus 

 Batocrinus 

 Batocrinus 

 Batocrinus 

 Batocrinus 

 Batocrinus 

 Batocrinus 

 Batocrinus 

 Batocrinus 

 Batocrinus 

 Batocrinus 



Broadheadi. 



heteroclitus. 



ignotus. 



inconsuetus. 



inopinatus. 



insuetus. 



modestus. 



nitidulus. 



peculiaris. 



polydactylus. 



procerus. 



/Sampsoni. 



serratus. 



venustulus. 



Batocrinus 

 Batocrinus 

 Batocrinus 

 Batocrinus 

 Batocrinus 

 Batocrinus 

 Batocrinus 

 Batocrinus 

 Batocrinus 

 Batocrinus 

 Batocrinus 

 Batocrinus 

 Batocrinus 

 Batocrinus 



veterator. 

 vetustus. 

 vicinus.% 

 delicatulus. 

 parilis. 

 stelliformis . 

 strenuus.§ 

 Boonvillensis , 

 Gorbyi. 

 Gurleyi. 

 mediocris. 

 pulchellus. 

 venustus. \\ 

 divalis.^ 



The impossibility of such, a large number of new species 

 being found in a comparatively small space becomes an over- 

 whelming fact, when we consider the distribution of plants 

 and animals. Nature has never been known to confine such 

 an incredible number of species at one spot. Nothing like it 

 is found in the distribution of plants and animals of the pres- 



* Bull. 111. State Mus. Nat. Hist. 9. 

 f Bull. 111. State Mus. Nat. Hist. 10. 

 X Bull. 111. State Mus. Nat. Hist. 7. 



§ Bull. 111. State Mus. Nat. Hist. 9. 

 || Bull. Geol. Surv. Mo. i. 

 f Rep. Geol. Surv. Ind. 18. 



