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 Uehersetzungsrecht vorbehalten. 



Tlie Early Development of Eudendrium. 



By 



Chas. W. Hargîtt, 



Syracuse University, Syracuse, N. Y. 



With plates 14—16. 



While not a little has been done by various observers on the 

 general character and life history of the Eudendridae, including more 

 or less critical investigations upon the origin of the sex-cells, very 

 little has been done, so far as I am aware, in the details of deve- 

 lopment of any of the species of the genus Eudendrium. 



My own interest in the group began several years ago in relation 

 to the origin of the sex-cells, brief reports upon which have appeared 

 elsewhere and will be further referred to in another connection. While 

 engaged on this phase of the subject 1 became impressed by some 

 apparent anomalies in the ontogeny of one of the species. But for 

 various reasons its critical study has until recently been delayed. 



It is the purpose of the present paper to present in some details 

 the origin of the ova and early development of Eudendrium ramosum., 

 including briefer accounts of two or three other species. 



While most of the material was collected and considerable of the 

 work done at the Marine Biological Laboratory, Woods Holl, it has 

 been carried to its present state of completion during the occupancy 

 of the Smithsonian Table at the Naples Zoological Station, for the 

 opportunity and courtesy of which I am under obligations to the Secretary 

 of the Smithsonian Institution, Mr. S. P. Langlet, LL. D. 



Material and Methods. 



Most of the material was obtained at Woods Holl, that of the 

 species of E. racemosum and E. capillare, at Naples. The collections 



