308 BULLETIN: MUSEUM OF COMPARATIVE ZOOLOGY. 
in two cases is a genus represented by more than one species, although 
but four families are included. Clytia cylindrica forms the great bulk — 
of the material, although there is a good supply of Obelia geniculata; and 
Diphasia rosacea, Sertularta 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. 
a EAE 
F a 
Inst of Species. 
EUDENDRIDAE 
Eudendrium ramosum (Linné) 
CAMPANULARIDAE 
Campanularia calceolifera Hincks 
Clytia cylindrica Agassiz 
Obelia geniculata (Linné) 
HALECIDAE 
Halecium articulosum Clark 
halecinum (Linné) 
SERTULARIDAE 
Diphasia rosacea (Linné) 
Hydrallmania falcata (Linné) 
Sertularella gayi (Lamoroux) 
Sertularia cornicina (McCrady) 
Thuraria argentea (Linné) 
cupressina (Linné) 
thuja (Linné) 
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, 
NG 
1 Cont. nat. hist. U. S., 1862, 4, p. 306. 
2 Hydroids of Beaufort, N. C. Bull. U. S. bureau fisheries, 1912, 30 p. 358. 
