8, Lyon and 8, A, Casseday on new species of Crinoidea, 243 
Geological position and ie eat Found in vast numbers in the quar- 
ries near the Louisville and Nashyille Rail ig Clear Creek, Hardin Co. 
Kentucky, at numerous localities in Indiana, i ds near the top of the 
Knob member of the sub-carboniferous rocks. ia Clear Creek the hori- 
Dimensions of medium sized specimen. 
Height from base to foot of es - = 145 inch. 
Height of calyx to = arms, se i “45° 
Diameter at free arm - - - - miedo ue ts 
nba ~ + - “ - SO 
of nee ees Sa ee ee Sy 
Height of sada wae wT a ce ill ne“ 
Meaistocrinus, Owen and Shumard. 
Megistocrinus rugosus, sp. nobis. 
bglobose, truncated ; below the truncation concave‘ from the 
j dns 
on, 
Pieces of the calyx being ornamented with very prominent ci tuber- 
cles, give it an exceedingly rugose we aly rise hence its tae pane: 
pentapeta talo 
_ Pasa pieces, three, forming together an irregular hexagon, the fo 
Cinsoeiar of which is parallel to the ~ Apia Ae att facet of the 
oi are finely granulated. 
oo five, forming together with the first anal piece a circle 
ot mmetrical hexadetel pieces. Their surfaces are beautifully orna- 
“i =n strie disposed ——- with granular 
tn 
