Helt. 



274 



yiiiM' 



Heliophyllum aequum. ( Hall, 35th Ann. Rep. N. Y. State 



Museum. 



//. 18 8;2.) 

 CoUett's 

 Indiana 

 Rt. 1882, 

 page^314, 

 plate 23, 

 fig. 10, 11. 



'J W^Tliv 



Falls of the Ohio, Ky. Oorniferous limestone. VIII a. 

 Heliophyllum alternatum. (Hall, 35th Ann. Rt. 1882.) 



* 1 e tt ' s 



Indiana 



Rt.l882, 



page 



305, 



plate 



Falls of the Ohio. Oorniferous limestone, VIII a, 

 Heliophyllum annulatum. (Hall, 35th Ann. Rt. 1882.) 



Collett's Indiana Rt. 1882, page 307, plate 23, lig. 3, a section, 

 lengthwise, of a large straight specimen; fig. 2 [part of] a 

 large specimen imperfect at the base. [Plate 25, fig. 12, gives 



