BRITISH ZOOPHYTES. 105 



7. H. GENICULATDM, Noi'man. 



8. H. SESSILE, Norman. 



Hab. : The Mincli, in deep water {Norman). Height 

 U in. 



Both these species were described by Mr, Norman 

 in a note on the " Hydrozoa of the Hebrides/' in the 

 Report of the British Association for 1866, 196. 



Genus II. Ophiodes, Hincks. (o^iojSt;?, snake- 

 bearer.) 



Stem branching, rooted by a creeping stolon. Caly- 

 cles vase-shaped. Folypites not retractile within the 

 calycle. Body deeply constricted below the base of 

 the tentacles, which are in a single verticil, muricate, 

 webbed, surrounding a conical proboscis. Tentaculoid 

 organs borne singly on the stem and on the creeping 

 stolon, highly extensile, protected at the base by a 

 small chitinous cup, and terminated at the upper ex- 

 tremity by an enlarged capitulum armed with thread 

 cells. Iiej)roduction by means of fixed sporosacs. — 

 T. H. 



1. 0. MiRABiLis, Hincks. 



Hab. : Swanage Bay, Ilfracombe {Hincks). Height 

 i in. 



Described in Ann. of Nat. Hist, for November, 1866, 

 421. The general appearance will be seen from the 

 generic description. The peculiarity of this species is 

 the tentaculoid organ described in the generic cha- 

 racter. It "consists of a very extensile, snake-like 

 appendage, with an enlarged head attached at the 

 lower extremity by an extension of the coenosarc. 

 They are capable of great elongation and contraction. 



