8 J Canadian Arctic Expedition, 1913-18 



APPENDIX 



We have been asked to include in this report the following notes on some 

 Sponges belonging to the "United States National Museum, collected by the 

 International Expedition to Point Barrow in 1883, and listed by John 

 Murdoch in his report on the marine invertebrates of the expedition, p. 168. 

 as quite indeterminable with the resources at his command. 



These were sent to us by the Smithsonian Institution in three jars, bearing 

 the catalogue numbers 1588, 1590 and 1591. They all came from "Ten miles 

 west of Point Franklin, Alaska, August 31, 1883, 13J fathoms." Only two com- 

 mon species are present in the collection. 



Number 1588 contains a number of specimens of Ficulina ficus, shoTving 

 great variation in the number of microxea present, which are small, sharply 

 pointed at each end, roughened or microspined, and frequently centrotylote. 

 In one specimen they are almost completely wanting. 



The other jars contain several specimens of Halichondria panicea, massive 

 or digitate in form, with scattered vents, and an often very distinctly reticulate 

 dermal membrane. 



Mr. F. Johansen also submits the following note: " Mr. Thomas Simpson, 

 in his Narrative of the Discoveries on the North Coast of America, 1836-39, 

 London, 1843, p. 125, stat?s that on the beach west of Flaxman island, Alaskan 

 arctic coast, h's party ' picked up some pieces of delicate branched Sponge,' on 

 July 21, 1837." 



London, England, August, 1923. 



