13 



Family Theneid(e. 



Thenea muricata (Bowerbank). 



Gulf of St Lawrence, between Anticosti and the Gaspe peninsula, in 220 

 fathoms dredged by the writer in 1S73 ; east Greenland, in 250 fathoms, A. 

 M. Rodger, 1894 (Lambe). 



(MONAXOXIDA). 

 HADROMERIXA. 



Family Stylocordylidoe. 



Stylocordyla uwrealis (Loven). 



H. M. S. Challenger, Station 49 (May 20, 1873) south of Halifax, Nova 

 Scotia, in 85 fathoms, gravel and stones. Dredged also by the writer in 

 1873, in the Gulf of St. Lawrence, about half way between Anticosti and 

 the Gaspe peninsula, in from 200 to 220 fathoms mud, (about a dozen 

 specimens). 



Family Clionidce. 



Cliona celata, Grant. 



North shore of Prince Edward Island, two specimens burrowin^^ into 

 oyster shells, collected by Dr. James Fletcher in 1893, and subsequently 

 identified with this species by Mr. Lambe. 



Family Polymastiidce. 



Polymastia robusta, Bowerbank. 



H. M. S. Challenger, Station 49, (May 20, 1873) south of Halifax, Nova, 

 Scotia, in 85 fathoms, gravel and stones (Ridley ik Dendy). Prince Edward 

 Island, south of Cow Head, in 12 fathom.s, seven pieces, all of which are 

 part of one specimen, which formed a bright red thin crust, not far from a 

 foot in its greatest diameter ; collected by the writer in 1873, and since 

 identified with this species by Mr. Lambe. 



Polymastia mamillaris (Miiller). 



Gulf of St. Lawrence, dredged by the writer in 1871 and 1872 in deep 

 water (120 to 210 fathoms) far from shore to the north and south of the 

 Island of Anticosti. 



