68 STAUKIDIID^E. 



gonophores borne on the body of the poll/pile and origi- 

 nating free medusiform zooids. 



Gonozooid : Umbrella deep bell-shaped; manubrium with 

 a simple mouth ; radiating canals 4 ; marginal tentacles 4, 

 nodulated with dieters of thread-cells, and springing from, 

 ocellated bulbs. 



S. PRODUCTUM, Wright. 



STAURIDIA PRODUCTA, T. S. Wright, Edinb. N. P. Journ. for April, 1858, 



pi. vii. figs. 6, 8. 

 CORYNE CERBERUS (the young), Gosse, Devon. Coast, 222, pi. xiv. figs. 4-0. 



Plate XII. fig. 1. 



STEM smooth, simple or slightly and irregularly branched ; 

 POLYPITES elongate, reddish, the oral extremity opake 

 white, with 12 tentacles (in the adult state) disposed in 

 three whorls of four, furnished with numerous palpocils, 

 the capitula of the uppermost row larger than the rest ; 

 false tentacles (tactile organs) 4-6, usually suberect; 

 GONOPHORES borne at the base of the lower tentacles, 

 pyriform, slightly pedunculate, of a pinkish colour, not 

 more than one or two on a polypite. 



GONOZOOID. UMBRELLA (at the time of liberation) deeply 

 bell-shaped, studded with thread-cells ; MANUBRIUM of 

 moderate length, rose-coloured; MARGINAL TENTACLES 

 springing from rose-coloured bulbs, on one side of which 

 is a dark reddish-brown ocellus, very extensile, set along 

 their entire length with knot-like clusters of thread- 

 cells, and terminating in a spherical bulb. 



I HAVE ab'eady pointed out the identity of the gonozooid 

 of this species, at the time of liberation, with that of Syn- 

 coryne eximia (Allman), a member of another genus *. 

 While within the capsule the marginal portion of the 

 disk is folded in, and the knotted arms lie in the interior 

 of the umbrella. 



* Ann. N. H. for December 1862. 



