[lambb] sponges from THE ATLANTIC COAST OF CANADA 183 



The larg-ewt s})ecimen in the collection is about 75 mm. long. 55 mm, 

 broad and 50 mm. high, including the fistuhe, which have an average 

 length of 20 mm. The smallest perfect specimen is only 7 mm. broad 

 and bears on its upper surface six fistuUe, each about 5 mm. long. 

 Every size between these two is represented in the collection, and all 

 have the long, usually branched, delicate tistuiar processes. One other 

 specimen of considerable size completel}' envelopes the carapace of a 

 crab (appai-ently of the genus Hyas). 



In some of the specimens the oxea have a iiiaximum size of 698 

 by 0013 mm. ; in one a size of 0876 by 0017 mm. is reached. 



Localities. — Murray Bay, seven specimens, dry, and one in alcohol ; 

 Eivière du Loup, Metis, Gaspé, thirteen specimens, dry, Sir William 

 Dawson ; between Pictou Island and Cape Bear, in from 46 to 48 

 fathoms, twelve specimens and some fragments, in alcohol, J. F 

 Whiteaves ; Yarmouth, JN'ova Scotia, one specimen, in alcohol, Prof. 

 John Macoun. 



Distribution. — Kiver and (fulf of St. Lawrence and southern coast 

 of Nova Scotia ; Grreenland (O. Schmidt, Fristedt). 



Foreign distribution. — Pitlekai (lat. G7° 05' É., long. 187° W.), lat. 

 65° 10' N., long. 169° 50' W. 



Eeniera RiTPESCENs, Lambe. 



Heniera ru/escens, Lambe. 1892. Sponges from the Pacitic coast of Canada and 

 Behring Sea, Trans. Royal Soc. Canada, vol. x., p. 7.5, pi. iv. 

 fig. 6 and pi. v., figs. 12, 12a. 



A few small specimens which show the characteristic mode of growth 

 of this sj^ecies. 



The oxea vary in length from 0-189 to 0'124 mm. and in thickness 

 from 00 13 to 0-006 mm. ; in foi*m and size they are the same as those of 

 the type specimens from Petroj^aulowski, Kamtschatka. 



Localities. — Gaspé coast, eight specimens, dry, Sir William Dawson ; 

 Orphan Bank, off the entrance to the Baie des Chaleui's, one small frag- 

 ment, in alcohol, J. F. Whiteaves. 



Reniera mollis, Lambe. 



Heniera mollis, Lambe. 1893. Sponges from the Pacific coast of Canada, Trans. 

 Royal Soc. Canada, vol. xi., p. 26, pi. ii., figs. 3, 'Sa. 



There is in the Eedpath Museum, McGill College, Montreal, a speci- 

 men of this sponge encrusting a large piece of rock. The oscula are very 

 noticeable, being large and prominent. The spicules are of the same 

 size as those of the type specimens from Vancouver Island ; length from 

 0-229 to 0170 mm. ; thickness from 0006 to 0-009 mm. 



