some Irish Sponges. 



233 



Nearly all the sponges in this collection which are new to 

 the British Isles were dredged in deep water off the west and 

 south-west coasts of Ireland. 



A report on the collection is in preparation for publication 

 in the "Scientific Investigations" of the Irish Fisheries 

 Branch. 



List of Species. 



Grade MONAXONELLIDA. 



Suborder Sigaiatomonaxonellida. 



Family Haploscleridae. 



Subfamily GEi.uiyM. 

 Gellius fiagellifer, R. 8f D, 



Oceanapia robusta (^Botoerhank). 



Subfamily Rexierixm, 



Reniera cinerea (Grant). 



peachi {Bowerbank). 



simulans (Johnston). 



fistnlosa (Boxverbank). 



indistincta {Boicerhank). 



Metschnikowia spinispiculum 



(Carter). 

 Halichoiidria panicea (Pallas). 



fibrosa (Fristedt), 



Pliloeodictyonelongatum ( Topseni) . 



Subfamily CirALixixje. 

 Pacbychalina limlmta {Montagu). \ Cbalina oculata (Pallas), 



Subfamily Desmacellxx^. 



Biemna inomata (Bowerbank). 

 Tylodesma annexa {Schmidt). 

 iuformis, sp. n. 



Hamacantha johnsoni (Bower- 

 hank). 

 falcula (Bowe^-ba»k). 



Family Desmacidonidae. 

 Subfamily Mycaxixm. 



Esperiopsis fucorum (Johnston). 



villosa (Carter). 



incoc^nita, sp. n. 



macrosignia, sp. n. 



Mycale a3gagropila (Johnston). 



macilenta (Bowerbank). 



placoides ( Carter), Lundbeck. 



rotalis (Bov:erbank). 



fascifibula (Topsent). 



• littoralis (Topsent). 



Rhaphidotheca marshall-halli, 



Kent. 

 Asbestopluraapennatula('S'c/<m«'rf^). 



Cladorbiza abyssicola, Sars. 

 Myxilla rosacea (Lieberkiihn), 



incrustans (Johnston). 



fimbriata (Bowerbank). 



Lissodendoryx diversichela, Lund- 

 beck. 

 lophon nigricans (Bmcerbank). 

 lotrochota acanthostylifera, sp. n. 

 Forcepia forcipis (Bowerbank). 

 Histoderma physa (Schmidt). 

 Histodermella ingolfi, Lundbeck. 

 Grayella pyrula (Carter), 



