8 BIMEEIA HUMILIS. 



liudendriuiu tenellum. 

 PI. IV. Figs. 3, 4. 



Tro2)hosome. — Hydrocaulus attaining a height of about half an inch, very 

 slender, not fascicled, irregularly branched ; branches annulated at their 

 origin ; main stem and branches with groups of two or three annuli at 

 distant and irregular intervals. 



Gonosome not known. 



Dredged off Double- Headed Shot Key from a depth of 471 fathoms. 



Endendnnm tenellum is a minute and very slender form, perhaps the most 

 slender species as yet referred to the genus Eudendrium. Its reference to 

 this genus is probably correct, but as neither hydranths nor gonophores 

 were present in the specimen, it may possibly have its true place in some 

 other. 



The specimens were obtained along with Sertularella amphorifera from the 

 deepest dredgings made. 



Eudendrium cochleatum. 



PI V. Figs. 1, 2. 



Trophosome. — Hydrocaulus attaining a height of between two and three 

 inches, not fascicled, alternately branched ; main branches and ultimate 

 ramuli with very distinct oblique annulation at their origin, and here and 

 there with groups of three or four ordinary transverse annuli. 



Gonosome not known. 



Dredged off Cape Fear River from a depth of 6 fathoms. 



The strongly marked screw-like annulation at the origin of the branches 

 forms a characteristic feature of this species. Some of the hydranths were 

 well preserved in the specimen, but no gonophores were present. 



Attached to it were numerous specimens of a little tube-dwelling crus- 

 tacean. 



Family BIMERID^. 



Genus BIMERIA Str. Wright. 



Bimeria humilis. 



PI. V. Figs. 3, 4. 



Trophosome. — Hydrocaulus attaining a height of about a line and a half, 



springing at intervals from a creeping and ramified stolon, sending off 



