New Bryozoa from Nebraska. — Condra. 353 
ually five or six, six or seven for a short distance below, and four 
for a short distance above a bifurcation. Apertures of medium size, 
circular, with thin peristome incomplete on the lower and inner mar- 
gins, nearly twice their own diameter apart, sixteen or seventeen in 5 
mm., usually five in each range to the fenestrule. 
This species differs from P- nodocarinata Ulrich in having much 
larger and fewer nodes which are not distributed as they are in that 
species ; the zoarium is more robust. The zooecial apertures are of 
a different character. The subcarinate appearance of the branches 
calls to mind P. submarginata Meek, though the two species are very 
distinct- P. bassleri n. sp. is less robust but resembles some in the 
disposition of zooecia and to a degree on the reverse faces. Type 
specimens in the museum of the University of Nebraska, Lincoln, 
Nebraska. 
The name is given in honor of E. O. Ulrich, the American author- 
ity on Paleozoic Bryozoa, whose literature and other assistance have 
been of inestimable value to the writer. 
Position and locality- Coal Measures; Table Rock, Falls City, and 
Bennett, Nebraska. The first specimen of the species was collected 
by Miss Carrie A. Barbour at Table Rock, igco. 
Polypora remota n. sp. 
PI. XXIV. Figs. 1, 2. 
Zoarium an evenly spreading net-work, 3 cm. high by 2 cm. wide, 
growing from a small stalk. Branches cylindrical, about their own 
diameter apart, evenly convex on both faces, smooth except for the 
zooecial apertures and fine striae, loosely joined, bifurcating at regular 
intervals of about 5 mm., 0.7 mm. wide, one mm. wide just below a 
bifurcation, seven in i cm. 
Dissepiments thin, cylindrical, depressed on each face, few in num- 
ber, pass direct or at an angle from one branch to the other, average 
width 0.25 mm. 
Fenestrules few, long, not very different in size and form ; by in- 
side measurement, they are 2.5 long by 0.7 to 0.8 mm. wide ; three to 
three and one-half in i cm. 
Zooecia in four to six alternating ranges. The usual number is 
-five, with six before, and four immediately aljove a bifurcation; 
apertures circular, small, 0.08 to o.io mm- in diameter, 0.13 mm. across 
including the peristome, pustuloid with peristome, four to five times 
their own diameter apart longitudinally, five or six to the fenestrule, 
twelve to thirteen in 5 mm. 
This species is not far removed from the genus Thamniscus, the 
bifurcations being about one-half as numerous as the dissepiments. 
Polypora gracilis Prout seems to be the closest related species. That 
species has a less regular growth and nine instead of twelve or lliir- 
teen apertures in 5 nun. Also, it has spines while this species is 
smooth. The very thin and slender dissepiments are of specific im- 
portance. No other Coal Measure Polypora of as large dimensions 
