PAL.ffiONTOLOGICA.I< EEPORT OF GEOLOGICAL SURVEY. 495 



Geological position and locality. Found in earthy partings between 

 chrystalline limestone, about eight feet below the hydraulic cement 

 beds,* and below the Olivanite horizon at the falls of the Ohio, and in 

 the same geological position on. south fork of Beargrass creek, Jeffer- 

 son county, Kentucky. 



Length of specimen, .—^ inch. 



Greatest diameter,' ----- <T ^ 8 _ inch. 



For valuable hints and assistance our thanks are due to Dr. D. D. 

 Owen ; also, to Samuel Casseday, for the use of his cabinet of Crinoi- 

 dea and Olivanites. SIDNEY S. LYON, 



Assistant Geologist 



•These rocka belong to the Devonian period. 



Explanations of the Plates. 



PLATE I. 



ASTEROCRINUS CORONARIUS. Lyon. 

 Volume 3, page 476. 

 Fig. 2. View of the summit. 

 Fig. la. Basal view of same specimen, natural size. 



GRAPHIOCRINUS— 14 BRACHIALIS. Lyon. 

 Volume 3, page 479. 

 Fig. 2. Generic figure, representing the parts laid out upon a horizontal surface. 

 1. Basal pieces. 2. First radial pieces. 3. Second radials. 4 

 Secondary radials. 5. Arms. 6. Anal pieces. 

 Fig. 2a. Profile view, same specimen. 

 Fig. 2b. Basal view, same specimen, natural size. 



