02 STAURIDIID^E. 



rigid, destitute of capitula, covered towards the extremity 

 with palpocils ; gonophores borne on the body of the poly- 

 pite, and originating free medusiform zooids. 



Gonozooid. Umbrella deep bell-shaped; manubrium large, 

 with a number of tubercles round the mouth; radiating 

 canals 8-10 ; marginal tentacles springing from ucellated 

 bulbs at the extremity of the canals, branched, nodulated 

 with clusters of thread-cells, and furnished towards the base 

 ivith appendages bearing suctorial disks. 



ALLMAN ranks Cladonema and Stauridium in the family 

 of the Pennariidce ; but their affinity, as it seems to me, 

 is clearly with the Corynidc? and Clavatellidae, while Pen- 

 naria is closely allied to Tubular ia. The curious append- 

 ages which I have named false tentacles can hardly be 

 compared with the wreath of inferior tentacles in the 

 latter genus ; they are members of the same system to 

 which the capitate arms belong, modified, and discharging 

 a different function. 



C. RADIATUM, Dujardin. 



CLADONEMA RADIATUM (free zooid), Dujardin, Ann. des Sc. Nat. xx. (1843) 

 370; Ann. des Sc. Nat. (3rd ser.) Zool. iv. 271. 



CORYNE STAURIDIA ("the slender Coryne"), Gosse, Dev. Coast, 257, pi. xvi. 

 figs. 1-5. 



Plate XI. 



STEM simple or slightly branched, of extreme tenuity ; 

 polypary perfectly hyaline and smooth ; POLYPJTES cla- 

 vate, rounded at the oral extremity, tapering off below 

 (when extended) to about the thickness of the stem, 

 coarsely annulated ; the eiidoderm laden with opake- 

 white granules ; the four capitate tentacula covered 

 with small tubercles, bearing palpocils ; the four false 



