238 TRANSACTIONS LIVERPOOL BIOLOGICAL SOCIETY. 



Isodictya perplexa Reniera perplexa, B. 



4, X. Isodictya involuta ? Hymeniacidon involutum, B. 



Isodictya paupercula ? Desmacidon pauperculum, B. 



4, XI. Microciona tumulosa Halicliondria tiimulosa, B. 



Isodictya trunca Clathrissa trunca, B. 



4, XII. Isodictya hispida Esperiopsis hispida, B. 



Isodictya nodosa Hymeniacidon nodosum, B. 



4, XIII. Isodictya pertenuis Hymeniacidon pertenue, B. 



Hymedesmia Peachii Myxilla peachi, B. 



4, XIV. Isodictya deformis Esperiopsis deformis, B. 



Isodictya collina Esperiopsis collina, B. 



4, XV. Hymeniacidon tenebrosus Suberites tenebrosus, B. 



Isodictya funalis Esperiopsis funalis, B. 



4, XVI. Isodictya insequalis Dendoryx insequalis, B. 



Isodictya implicita Jophon implicitum, B. 



4, XVII. Raphiodesma intermedium Esperella intermedia, B. 



Raphiodesma fallaciosum Esperella fallaciosa, B. 



PAET II. 



Classified List of the British Spo7iges described by 

 Bowerbajik. 



Phylum POKIFEEA. 



Class I. CALCAREA, Gray. 



1. Order. HOMOCCELA, Polejaeff. 



Leucosolenia botryoides, Ellis & Sol., Ill, (Hseckel, 



6, p. 65). 

 ,, contorta, B., Ill, (Haeckel, 6, p. 91). 



,, coriacea, Fleming, III, (Haeckel,^, p. 24). 



,, lacunosa, Johnst., IV, (Hoeckel, ^,p. 70). 



2. Order. HETEEOCGELA, Polejaeff. 



Sycon compressum, auctt., I, (Haeckel, 6, p. 360). 



,, coronatum, Ellis & Sol., II, (Hseckel, 6, p. 304). 



,, elegans, B., II, (Haeckel, 6, p. 338). 

 XJte glabra, 0. Schmidt, II, (Hseckel, 6, p. 349). 

 Leucandra fistulosa, Johnst., V, (Hseckel, 6, p. 197). 

 ,, gossei, B., VI, (Hseckel, 6, p. 177). 



