74 
BULLETIN OF THE LABORATORIES 
POLYPORA RADIALIS, Ulrich. 
Polypora radialis, Ulrich, 111. Geol. Siirv. vol. VIII, pi. LX, figs, i, id. 
Natural moulds in freestone of this small infundibuliform species 
are abundant in the upper 30 feet of the Waverly series near Newark, 
Ohio, while a single example was collected by the author in the Cuya- 
hoga shales at Richfield where it was associated with numerous species 
of crinoids, Fenestella albida, F. apei'ta^ and species of Pinnatop 07 'a. 
There seems no reason to doubt the specific identity of the Ohio speci- 
mens with the Illinois and Iowa types. At those more western locali- 
ties the species is known only from shales of the Keokuk group. 
PTILOPORA PAUPERA, Ulrich. 
Ptilopora paupera^ Ulrich. 111. Geol. Surv. vol VIII, pi. LXVI, fig. 10 . 
A fragment of this species occurs on a small slab filled with bryo- 
zoan remains of numerous species. Among them I recognize the fol- 
lowing : Fenestella burlingtonensis, F. 7 'egalis, Pinnatopora Vinei^ 
Rhonibopora incrassata and R. confluens. All of these species are de- 
scribed by me in volume VIII of the Illinois Geo, Surv. reports, now 
in press, the first from the Burlington limestone, the remainder from 
shales of the Keokuk group in Kentucky and Illinois. The types of 
P . paupei'a are also from Keokuk shales. This interesting slab is one 
of several collected by Prof. Herrick at Lodi, O. 
PINNATOPORA INTERMEDIA, n. sp. 
(Plate XIV, Fig. i.) 
Zoarium pinnated. The only specimen seen consists of four pri- 
mary branches each 2 cms. or more long, that evidently belonged to 
one zoarium. All present the reverse side to view. 
Midrib slender, about 0.3 mm. wide, slightly flexuous, with the 
reverse rounded and striated longitudinally. On the obverse side the 
two ranges of zooecia apertures are separated by a thin sharp carina, 
carrying rather distant small nodes. Lateral branches or pinnae from i 
to 3 mm. long, half as wide as the midrib, often united to each other 
by very slender non-celluliferous dissepiments, forming an angle of 
about 50 degrees with the midrib, and numbering ten or eleven on each 
side in 10 mm. Primary portions of zooecia in two alternating ranges 
