74 On the Echinodermata of St. Andreios, 



Genus Thyone, Oken. 

 Thyonefasus^ O. F. Miiller; Forbes, Brit. Starf. p. 233. 

 Common in the stomachs of cod and haddock. 



Genus Thyonidium, Diib. & Korcn. 

 Thyonidium Duheni^ Norman, oj;. cit. p. 317. 

 Occasionally in the stomachs of the cod and haddock. Mr. 

 Norman states that he has found it on the coast of Ireland, as 

 well as in Shetland. He observes {in lit.) that in this form 

 there are no skin-spicula ; feet with a large, circular, cribrose 

 plate at tlie end, no spicula on sides ; tentacles cased in large 

 cribrose spicula of varied form — elongated, short, or most 

 elegantly irregular and branched. 



Thyonidium commune, Forbes & Goodsir ; Forbes, Brit. 



Starf. p. 217, and Norman, op. cit. p. 317. 

 A fragmentary specimen in the stomach of a cod. 



Fam. Synaptidse. 

 Genus Synapta, Eschsch. 



Synapta inhcerens, 0. F. Miiller ; Dr. Herapath, Journ. 



Micr. Sc. 1865, p. 4. 

 The typical form occurs between tide-marks, as well as in 

 the laminarian region, the anchor-plates having six apertures 



surrounding the central, and comparatively few openings in 

 the narrow part to which the anchor is attached (see smaller 



