PLATE XXXVII 



PAGE 



Figs. 1, 2. TECHNOCBINUS SPINULOSUS (Hall) 251 



1. The body and bases of the arms with a portion of the column 



attached. 



2. Diagram of the structure of the body to the base of the arms, as far 



as determined. 



Oriskany formation, Ridgely member, Cumberland. (After 

 Hall.) 



Figs. 3-5. TECHNOCRINUS ? LEPIDTJS Ohern n. sp 252 



3. Inferior view of calyx. 



4. Cast of interior of calyx. 



5. Side view of interior of calyx. 



Oriskany formation, Ridgely member, near Berkeley Springs, 

 W. Va. 



28 



