408 THE CLUB-BEARING MEDUSA. 



posed of delicate polygonal cells (fig. 7), without any 

 developed ova. 



Tentacles twenty-four, arranged in eight bundles of 

 three each, at the points of junction of the four radi- 

 ating vessels, and midw^ay between them. One in 

 each group is minute and rudimentary (fig. 4) ; the 

 others are peculiar in form ; they arise from conical 

 bulbs set in twins close together, with a nucleus of 

 dark red pigment in each ; they are at first slender, 

 but swell towards their tennination into a thick ovate 

 or fusiform club, surrounded by from sixteen to forty 

 thickened rings, which are close or remote according 

 to the degree of contraction of the tentacle. They 

 are generally carried divergent, wdth a sigmoid 

 curve. 



The marginal canal carries about the same number 

 of (visual or) auditory capsules as of tentacles ; they 

 are perfectly globular, hyaline, each with a single 

 spherule. They are arranged three between two 

 groups of tentacles, but not quite symmetrically. 

 (Figs. 3 to 5 represent a group of tentacles, with their 

 ocellated bulbs, and capsules.) 



Peduncle small, ovate, with a neck, and slightly en- 

 larged extremity ; the outline seen vertically is qua- 

 drangular : it terminates in a thickened lip, pucker- 

 ed and obscurely four-fold. The whole is pellucid 

 flesh-coloured, viewed by transmitted light; but in 

 the sun's rays the basal part is of a lively yellow-green 

 and the lips bright rose-pink. (Fig. 6.) It does not 

 seem very mobile or extensile. 



I have called this curious species Corynetes, from 

 the resemblance of its tentacles to loaded clubs or 



