A Sfiidji of Hie liel n'derc Beds. — Cr(i(\in. ;{75 
it been recorded from rocks of that division an3^\vliere save 
('? below the zone of Epiasfer e?er/«».s) in a single remote 
southwestern locality, the western part of El Paso countj^ 
Texas. 
Plicatida iiicoinjnia has no record in tlie typical area. It 
has been recorded by Messrs. Dumble and Ciinimins at Kent 
from an Osfrea qKadriiplicafu zone (the Kent bed) below the 
horizon of Holasfer xlmplex and J'Jpiasfer cfcf/fi/ts and above 
the Cri'ypha'a titrumcd ril limestone. 
Pecten iuconspiciiii.s. Mr. Stanton records from th(^ Kiowa 
shales a Pecten w^hich he saj^s is "'a small smootli f<n-m like 
one that occurs in the Paw Paw beds of Denison." This is 
probably Pecten inconspicims^ the only known species that an- 
swers to Mr. Stanton's descrijition of the Kiowa form. After 
the description of this species was published the writer ob- 
tained a number of specimens indicating that this Pecten, 
though always very small, attains dimensions considerably 
larger than those that were given for it. The largest ofthe.se 
specimens has a hight of over thirteen millimeters. The ears 
are of moderately large and subequal size, though quite differ- 
ent in shape, and are both ornamented with numerous, sub- 
equal, sharply-raised lines on the border by which they spring 
from the body of the valve. 
Vdlu occidentaJis is the common Vola of the Federicksburg. 
The name Vola frederieksl>iir<iensin was proposed for this spe- 
<'ies inadvertently and is here withdrawn. The species was 
correctly referred to ocrldcn falls and to the subgenus Xclfhed 
in the writer's earlier pajiers. 
Ai-icAild leverettl is mentioned l)y Prof. Hill as if it did not 
occur below the Kiamitia. In the writer's original account 
of this species it was recorded from the Kiamitia and from 
the Uxogyrci texana bed, or basal Fredericksburg. It is not 
known to occur above the Kiamitia and is one of the forms 
that shows relationship of the Kiamitia totlie Fredericksburg. 
I noceramus comcincheamis is a fossil of tlie Duck Creek 
limestone, the basal member of the Washita. 
Jlodiohi concentrice-costellata? The shell here intlicaled is 
the writer's M. stoneioallensis. It is common to the Fredericks- 
burg and AVashita. It has not been recorded from the Deni- 
son division, but occurs in the higliest. oi- Doitoii. terrain^ of 
