A New Bryozoan Homotrypa Basslert., 105 
It seems a little singular that the genus Homotrypa, while 
well represented in the various groups of the Trenton period, 
is practically lacking in the Utica and sparingly developed 
in the Lorraine, with from one to three characteristic species 
in each of its divisions, except the lowest; in the Richmond 
the genus becomes very prolific in species. A very large 
number of new species, principally from the Richmond, are 
known that await description. 
This species was discovered by the writer while collecting 
fossils in company with Messrs. E. O. Ulrich and R. S. 
Bassler, in June, 1899, in the vicinity of Oregonia and 
Lebanon, Ohio. It was at this time, also, that it was recog- 
nized that these beds form the highest division of the Lor- 
raine. While not ranging entirely through the Warren beds 
of the Lorraine group, this species is one of the most charac- 
teristic fossils of these beds, and is restricted to them. 
The specific name is given in honor of my esteemed friend 
and former co-worker, Mr. R. S. Bassler, now of the U. S. 
National Museum. 
Formation and locality: A common and _ characteristic 
species of the Warren beds which form the uppermost 
division of the Lorraine group of the Cincinnati period. 
The specimens studied were collected in the vicinity of 
Lebanon, Ohio; and near Oregonia, Ohio. 
