160 F. B. Meek on the Carboniferous Rocks of 
u 
Marcou professes to be. 
The name Ancella, in Mr. Marcou’s list of Nebraska City for 
sils, is doubtless a mis-print of Aucella, there being no such name 
as Ancella known to the writer in Paleontology or recent Zoology. 
As some authors refer such forms as the so-called Monotis spelun- 
caria to Aucella, it is probably one of these, which are common 
in the Coal-measures and Permian rocks of Kansas and Ne — 
braska, to which he alludes. That he found here associated with 
all the Carboniferous fossils known to occur at this locality, the 
| 
as to readily deceive more skillful paleontologists than Mr 
be.* 
Nebraska, (referred to the Subcarboniferous by Mr. Mareou, 
that genus, would it therefore be philosophical “to refer thes? 
at Nebraska City, and the = pean ta of Illinois bee : 
upon the 
presence of this Crinoid, at Nebraska City, fall to the grou 
Mr. Marcou lays great stress upon the fact that the Cr 
found by him at Nebraska City differ entirely from the ge : 
et de 
known from our:Coal-measures, and the fragments of a number’ ; 
The type here alluded to isa avidel i thin shell 
ao ‘is-a: ing, edentulous, very UND Tt ih 
cated behind, and, when well. eserved cM ithe minute granules. In rer : 
ames in a work now in the press, The typical species, A llorisma oe 
asa ‘seal enn tote in the Vikeasnies At ‘eavenwortl Ol - 
nie anit Gi | in e | 
* Bee note at the end of thi p> vg same series. a 
