' PROUT—BRYOZOA, 4TH SERIES. 573 
0 eee is broken up into cup-shaped cavities about the size 
4 of those which characterize the Michelinia favosa 
(Kon.) 
up-shaped cells are bounded by insterstitial plates, 
with ti salient ~ entire lips, denuded of aren al near the 
to Michelinia. 
ogical — and Locality.—W arsaw Limestone, 
second Archimedes group, Warsaw, Illinois (Illinois State 
a No. 3), and Barrett’s Station, St. Louis County, 
Cosctntium MIcHELINIA, n. sp. 
aes ns encrusting, siege over a considerable sur- 
vid maller more or less hexagonal 
pes ates with pee ees tuberculated lips, bottoms of 
the eu having sometimes deep lanceolate, or oval depres- 
sions; interior surfaces marked with irregular ridges covered 
by cell pores or chalices, lacing occasional abortive spaces 
eem them. 
We separate this from the preceding species on account of 
its more robust growth, the irregular notched or tubereulated 
.of the lip, and the other characters. assigned to it above. 
The thin and salient lips of the Plumosa would scarcely as- 
: peso the tuberculated form in a regular Pobaroninticrhs of the 
: Gea ogieal position and Locally. —Warsaw Eeaeae er or 
ton No. ime piles, Warsaw, Hilinelas = ies State Collec- 
Cabinets SAGANELLA, N. ep. 
im expanding and encrusting, cell divisions very 
ie more or less irregularly hee border of the septz 
not so acute as in C. plumosum. have era 5 sep- 
arated this Wont the two species above, un re enabled 
Pecire more perfect specimens. Named pot its resemblance 
Hall). 
ss Geos position and Locality—W arsaw Limestone 
rahe co bil oll Hino. Illinois State Collee- 
on TUDERCULATUM, M.S. Pe 
jzoum an e 4 gowead somewhat concave and Seattys re- 
a ae ed toward one margin: tuberculations more or less irregu- 
ead ranged in lines, vith ini dimples if omrking their 
