6 EUDENDRIUM ATTENTJATUM. 



Eudendrium exiguum. 



PI I. Figs. 3, 4. 



Trophosome. — Hydrocaulus attaining a height of about an inch, irregularly 



branched, fascicled in- main stem ; principal branches and ultimate raniuli 



slender, mostly annulated at their origin. Hydranths with about twenty 



tentacula. 



Gonosome not known. 



Dredged from a depth of 98 fathoms off the Florida Reef. 



This is a small species ; it is strongly fascicled towards the proximal end 

 of the main stem, but the branches are for the most part monosiphonic, very 

 slender, and with very thin perisarc. 



Eudendrium fruticosum. 

 PL II. Figs. 1, 2. 



Trophosome. — Hydrocaulus attaining a height of about two inches, much 

 and irregularly branched ; main stem and base of principal branches fasci- 

 cled. Hydranths with about twenty tentacles. 



Gonosome. — Male gonophores bithalamic, springing in a verticil of about 

 ten from the body of the hydranth. Female gonophores oval, also spring- 

 ing in a verticil from the bodj^ of the hydranth. 



Dredged off Key West from a depth of 135 fathoms. 



This is a strong, confusedly branched form. The annulation of the peri- 

 sarc is either altogether obsolete or is at most represented by a few obscure 

 rings at the origin of the ultimate branches, or an occasional group of rings 

 near the middle of their length. The stem is thick and strongly fascicled 

 below, where it resolves itself into numerous hydrorhizal filaments. 



In the hydranths which carried the gonophores there was no tendency to 

 atrophy in the male, and but little in the female. 



The specimen was loaded with small spherical capsules, — probably a 

 moUuscan or annelidan nidus, — which adhered to the stem and branches 

 in dense clusters. 



Eudendrium attenuatum. 



PI. II. Figs. 3, 4. 



Troplwsome. — Hydrocaulus attaining a height of about two inchis, not 

 fascicled, very slender, alternately branched ; ultimate ramuli short, given 



