

THE OTTAWA f(ATURALIST. 



Vol. XIV. OTTAWA, DECEMBER, 1900. No. 9. 



CATALOGUE OF THE RECENT MARINE SPONGES OF 



CANADA AND ALASKA. 



By Lawrence M. Lambe, F.G.S. 



For convenience of reference, the names of the species of 

 recent marine sponges referred to or described in a number of 

 papers by the writer, pubHshed in the Transactions of the Royal 

 Society of Canada, at various dates since 1892, are here brought 

 together in the form of a catalogue. Although the species 

 enumerated are for the most part to be found in Canadian waters, 

 a number are mentioned that occur outside of this limit. In the 

 west, localities are given as far south as California, and some of 

 the more northern forms are recorded from the Alaskan Arctic, 

 with frequent reference to Behring Sea and North Pacific species. 

 In the east, species from off the western coast of Greenland are 

 considered to be from Canadian waters. The Canadian and 

 foreign distribution of each species is given, although in the latter 

 case a complete statement of the geographical range outside of 

 Canada is not always attempted. It is thought desirable to state 

 where the type, or specimens used in the description, of species 

 that have been described as new, were collected and where they 

 are now to be found. 



A bibliographical index is appended as well as the names of 

 a number of species, recorded by different authors as occurring 

 off the coast of Greenland and in Behring Sea and Strait. 



An asterisk placed before the name of a species denotes that 

 that species is not represented in the collection of the Geological 

 Survey. 



