36 Say on Shells, Se. 
nus under the name of Kentucky Asterial’ fossil, ies at the 
same time and subsequently, he expresses aie doubtful- 
ly; as to the propriety of that arrangement. $ specimens 
were not so perfect as to exhibit the basal oneal radii, 
and the sutures and ossicule were perhaps obliterated, as 
they were unnoticed. 
The examination of numerous specimens, in the collec- 
tion of the Academy of Natural Sciences, collected by Mr. 
Samuel Hazard, near Huntsville, affords me an opportunity 
to corroborate the correctness of that arrangement. = 
But I am induced to believe, notwithstanding the i imper- 
fection of our knowledge of these animals, that the genus 
as it now stands, needs the reforming hand of the system- 
atist, that it is in reality a natural family, including several 
perfectly distinct genera of many species, the individuals of 
some of which, as their remains testify, were immensely 
multiplied in the ancient world. 
Actuated by this conviction, I submit to the. decision of 
Naturalisis, the prope aceate cals the asterial fossil, from 
the genus Enerinus, ast genus, under 
Genus Peniremite. 
Body subglobular or nisaonas elevated’ upon an articulated 
trunk ; pelvis 3s (Pa arkinson) pentagonal, more or less abruptly 
attenuated to the base ; ambulacra (Lam.) five, incomplete, 
radiating from the summit and terminating each side at the — 
angles of the pentagon, each with numerous transverse -stria, 
a longitudinal indented line, two sutures, and numerous 
transversed impressed lines, which alternate with a marginal 
series of oblique pores ; interstitial spaces (included be- - 
tween the ambulacra) triangular, equal, with a longitudinal 
suture ; apex perforated by five rounded foramina, and an 
angulated central one ; essa innominata (Park.) large, rhome, 
bic. ‘Truwx branched? cylindrical, articulated, elongated ; 
segments perforated, articulating surfaces with alternately: 
elevated and depressed radii. 
A transient view of the superior portion of this reliquium, 
presents a considerable resemblance to the Echinii, by the 
_ apicial foramina, and by the radiating ambulacra whieh are 
somewhat similar to a pentapetalous flower. But an atten- 
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