6 EUDENDRIUM ATTENUATUM. 



Eudendrium exiguum. 



PI L Figs. 3, 4. 



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

 branched, fascicled in main stem; principal branches and ultimate ramuli 

 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 11. 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 bod}^ 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 

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

 in dense clusters. 



Eudendiium attenuatum. 



PI. 11. Figs. 3, 4. 



Tropliosnnir. — IlNdrocMulns atlaiuiiiij: a heitrht of about two inch.s, rot 

 fascirkMJ, very slonder, altcniatoly branched; ultimate rauudi short, given 



