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Canadian Record of Science. 



are common to both coasts. It is rather unfortunate that the last 

 publication is in the octavo form, as it precludes binding them 

 together. 



These publications bring this somewhat neglected part of Canadian 

 Zoology well up to date, and forms a ready and valuable means 

 of determining the sponges which are so abundant on our coasts. The 

 illustrations and descriptions are well executed and complete, which 

 greatly facilitates their determination. The collection from the West 

 coast were made by a large number of men, those from the East coast 

 chiefly by Sir William Dawson and Mr. Whiteaves. The following are 

 lists of species, catalogued and described by him from the respective 

 coasts : — 



Sponges from the Pacific Coast. 



Monaxonida. 

 Axenella rugosa 

 Chondrocladia Alaskensis 

 Chondrocladia pulchra 

 Clathria levigata 

 Clathria Loveni 

 Desmacella peunata 

 Esperella adhaerens 

 Esperella helios 

 Esperella hispida 

 Esperella lingua 

 Esperella modesta 

 Esperella occidentalis 

 Esperella serratohamala 

 Esperiopsis laxa 

 Esperiopsis Quatsinoensis 

 Esperiopsis rigida 

 Esperiopsis Vancouverensis 

 Eumastiu sitiens 

 Halichondria disparalis 

 Halichondria panicea 

 lophon chelifer 

 lotrochota magna 

 Myxilla Amakuakensis 

 Myxilla Barentsi 

 Myxilla Behringensis 

 Myxilla firma 

 Myxilla lacumsa 

 Myxilla parasitica 

 Myxilla rosacea 

 Petrosia hispida 

 Phakellia Dalli 



Phakellia papyracea 

 Phakellia ventilabrum 

 Plocamia Manaarensis 

 Polymastia laganoides 

 Polymastia Pacifica 

 Reniera cinerea 

 Reniera mollis 

 Reniera rufescens 

 Suberites concinnus 

 Suberites latus 

 Suberites montalbidus 

 Suberites montiniger 

 Suberites simplex 

 Suberites subena 

 Tedania fragilis 

 Toxochalina borealis 



Tetractinellidae. 

 Craniella spinosa 

 Craniella villosa 

 Cydonium Miilleri 



Hexactintllidae. 

 Aphrocalliste Whiteavesianus 

 Bathydorus Dawsoni 

 Rhabdocalyptus Dowlingii 



Calcarea. 

 Grantia Comoxensis 

 Lenconia pyriformis 

 Sycon compactum 



