Nachdruck verboten. 
Übersetzungsrecht vorbehalten. 
The Morphology of Coeloplana, 
By 
Prof. James Franeis Abbott. 
(Washington University, Saint Louis, Missouri, U. S. A.) 
With plates 8-10 and 7 figures in the text. 
Contents. 
A. Historical é 
a. KOWALEVSKY’ s Coeloplana 
2. KOROTNEFF’s (tenoplana . 
3. WILLEY’s Cienoplana . 
B. The Japanese Coeloplana : 
1. The living animal; life habits 
External appearance 
2. Structure of Cocloplana 
a) Epithelium 
b) Gastro-vascular ara 
General organization 
Histological structure . 
c) Tentacles and related structures 
General description . 
Histological structure 
d) The Otolith À 5 : 
e) Parenchyma and muscul cae 
C. General considerations 
D. Summary 
