Stephens — Tin; F)r>ili-tv(tter Sponges of Ireland. 253 



DESOllirTloN OF I'LATES. 



I'LATK XXVI. 



Megaseleres x o30 ; fitn', iniciDscleics iiiid geiiiiiiule-spicules x GOO. 



1. Siioii;ji//i( /acudriti -Mict. «, megaseleres ; i, f, gomnuile-spicules ; d, I'lec 



niiciosclere. Stream at Woodburii, Co. Antrim. 



2. Spongilla lacivstris aucfc. a, megaseleres ; h, gemmule-spiciile ; c, free 



mieroscleres. Derryelare Lough, Co. Galway. 



3. Spomjilla fnujiUs Leidy. a, gemmule-spieules; h, megaseleres. Lough 



Fad, F'air Head, Co. Antrim, 

 ■i. E[iliijdatia flavuitUis auet. var. Megaseleres. Lough Erne, ofV Eagle 

 Jslaiid. 



5. E^ihydalia JlnviulUib auet. var. Megaseleres. Ballyseanlan Lmigli, 



Co. Wateii'ord. 



6. Ephtjdatia fluviutilis axmi. var. Megaselere. Lough Derg, Co. Tipperary. 



7. E2}hydati(( Jluvi((tilis auet. var. Megaseleres. Oakport Lough, 



Co. Itoscommon. 



8. E])hydatia Jiuviatdis auet. var. Megaseleres. Lough Gill, Co. Sligo. 



9. Ejjhi/datiajiaviidilis auet. var. a~c, megaseleres ; /, amphidisc. Drumclitf 



Kiver, Co. Sligo. 



Plate XXVIL 

 Megaseleres x 3.S0 ; gemmule-spicules x 600. 



1. Ephydatia fluviatilis auet. a, megaseleres; b, c, side and end views of 



amphidiscs Eiver Barrow, at Mageney, Co. Kildai'e. 



2. Ephydatia fluviatilis auet. «, megaseleres ; h, c. d, side and end views of 



amphidiscs. F'urnaee Lough, ("o Mayo 



3. Ephydatia flmiatilis auet. a, megaseleres ; b, c, side and end views of 



amphidiscs. Pond in Zoological Gardens, Dublin. 



4. Ephydatia fluviatilis anct. «, megaseleres ; b, c, side and end views of 



amphidiscs. Lagan Canal, Co. Antrim. 



5. Ephydatia fluviatilis auet. Mierospined megaselere. Lough Corrib, 



near Oughtcrard. 



6. Ephijd'itur fiaviatdis auet. «, megaseleres; h, c, .side and end views of 



amphidiscs. Mill-stream from Kiver Dodder, Dutilin. 



K.l.A. PROC, VOL. XXXV, SECT. I!. [2 E\ 



