308 bulletin: museum of comparative zoology. 



in two cases is a genus represented by more than one species, although 

 but four famiHes are included. Clytia cylindrica forms the great bulk 

 of the material, although there is a good supply of Obelia geniculata; and 

 Diphasia rosacea, Sertularia cornicina, and Campanularia calceolifera 

 are represented by good specimens. The remainder of the list consists 

 of larger or smaller fragments. In many cases gonangia are present. 



List of Species. 



EUDENDRIDAE 



Eudendrium ramosum (Linne) 



CAMPANULARIDAE 



Campa7iularia calceolifera Hincks 

 Clytia cylindrica Agassiz 

 Obelia geniculata (Linne) 



HALECIDAE 



Halecium articulosum Clark 

 halecinum (Linne) 



SERTULARIDAE 



Diphasia rosacea (Linne) 

 Hydrallmania falcata (Linne) 

 Sertularella gayi (Lamoroux) 

 Sertularia cornicina (McCrady) 

 Thuiaria argentea (Linne) 



cupressina (Linne) 



thuja (Linne) 



Clytia cylindrica Agassiz (Fig. 73, 74) 



This species was first described from Massachusetts Bay by L. 

 Agassiz,^ and has since been collected at various points near Woods 

 Hole. It has not been reported to the northward but the range ex- 

 tends far southward as I have found it in abundance at Beaufort, 



N. C.2 



1 Cont. nat. hist. U. S., 1862, 4, p. 306. 



2 Hydroids of Beaiifort, N. C. Bull. U. S. bureau fisheries, 1912, 30 p. .358. 



