200 TRANSACTIONS LIVEEPOOL BIOLOGICAL SOCIETY. 



ally I have the pleasure of naming it after my friend and 

 its discoverer. 



Fig. 1. Sagartia (?) herdmani, n. sp. 



" The presence of acontia makes it a Sagartian, the 

 mesenteries appear to have the arrangement which 

 characterises the more typical Sagartidse, it is probably 

 not one of the Chondractininse (cf. Trans. Roy. Dublin 

 Soc, 1889, p. 305). The external characters are as 

 follows : — 



" Highly contracted Sagartiae of a low dome shape (in 

 spirit) with an expanded pedal disc ; surface finely corru- 

 gated ; capitulum when retracted with twelve ridges ; 

 acontia emitted through mouth (?) ; pedal disc in most 

 specimens becomes remarkably folded, the folds being- 

 transformed into new Actinias which gradually become 

 separated from the parent and creep away (see cut, s fig. 1) 

 — twenty or more buds may be formed at the same time. 

 Colour.* 



" Dimensions — long diameter of base of column 12 — 14 

 mm., short diameter 8 mm. ; height of contracted column 

 5 — 7 mm. ; the pedal disc extends from 1 to 2 mm. beyond 

 the column. 



" Habitat — on Turritella shells, in Killary Lough, W. 

 of Ireland, 5 to 10 fins., August, 1890; abundant. 



"It is well known that some Actiniae proliferate from 

 their pedal disc, Metridium {Actinoloba) diantlius is a 



* [When alive, the colour was a pale brick-red with whitish markings on 

 the tentacles. The animal when dredged had the same low dome shape as 

 now; when expanded in the aquarium it became a short cylinder: the 

 tentacles were numerous, small, slender and pointed. — W.A.H.] 



