NO. 1 fraser: hydroids 19 



Eudendrium carneum Clarke 



Eudendrium carneum Clarke^ Hyd. of Chesapeake Bay, 1882, p. 137. 



Fraser, Beaufort Hyd., 1912, p. 349. 



Distribution. — South of Clarion Island, 50 fathoms; James Bay, 20 

 fathoms; between Charles and Indefatigable islands, 60 fathoms; San 

 Francisco Bay, 2 fathoms; east of islands ofif Navidad Head, 25-35 

 fathoms. 



Eudendrium certicaule, new species 

 Plate 3, Fig. 14 



Trophosome. — Colony erect, reaching a length of 6 cm. The main 

 stem is simple, straight, definitely continuous throughout the whole 

 length of the colony, more markedly so than is commonly the case in 

 this genus. The branches, alternate but not very regularly arranged, 

 make a wide angle with the stem; the branchlets of the pedicels are 

 similarly arranged on the branches. Few or no annulations on the main 

 stem, 2-4 at the bases of the branches, branchlets, and pedicels. Hy- 

 dranths with 15 or 16 tentacles. 



Gonosome. — Male gonophores, single-chambered, form a loose series 

 around the base of the hydranth, that is not aborted. Female gono- 

 phores form a series of 3 or 4 around the base of the hydranth, which 

 is not aborted. 



Distribution. — In the channel between Narborough and Albemarle 

 islands, 70 fathoms; James Bay, 30-50 fathoms; between Charles and 

 Indefatigable islands, 60 fathoms. 



Eudendrium exiguum Allman 

 Eudendrium exiguum Allman, Hyd. of the Gulf Stream, 1877, p. 6. 

 Distribution. — Gorgona Island, on coral at low tide. 



Eudendrium nodosum, new species 

 Plate 4, Fig. 15 



Trophosome. — Colonies slender, 35 mm. high ; branching irregular, 

 one or two primaiy branches commonly giving rise to the hydranth 

 pedicels directly and these may all be on the one side of the branch; 



