308 THE MEDALS OF CREATION. Cuap. VIII. 
The Star-fishes of the British paleeozoic strata are described 
by Prof. E. Forbes in the Memoirs of the Geol. Survey, 
Decad. 1.* 
\ 
! 
\ 
Lien. 99. FossIL Star-FIisH. Lias, Wirtemberg. 
ASTERIAS PRISCA. (Goldfuss.) 
GEOLOGICAL DISTRIBUTION OF THE CRINOIDEA.—The great 
number of extinct forms of this order of Radiata in the most 
ancient fossiliferous deposits, is a remarkable fact, which has _ 
uready been incidentally adverted to. In the paleeozoic 
seas—ineluding the Silurian, Devonian, Carboniferous, and — 
Permian—the Crinoidea were represented by upwards of — 
fifty genera, whose existence began and ended during that | 
veological cycle. 
* See also Prof. M‘Coy’s Lower Palozoic Fossils, p. 58. 
