67 



Doubtful species. 



(LiNEUs TRUNCATUs (Hubrecht). 



Cerebratulus truncatus, Hubrecht (1887). 

 Lineus truncatus, Verrill (1892). 



H.M.S. "Challenger," Stations 47 and 49 (1873), off Nova Scotia, in 75 

 and 85 fathoms (Hubrecht). Verrill says that there is nothing in Hubrecht's 

 description of C erehratulus truncatus to distinguish it from Lineus viridis, 

 which often contracts into the same form.) 



MiCRURA AFFiNis (Girard). 



Poseidon affinis (Girard) Stimpson (1853). 

 Nemertes affinis, Verrill (1874). 

 Micrura affinis, Verrill (1879). 



Grand Manan, " in the laminarian zone " (Stimpson). " Very common 

 from off Cape Cod and Massachusetts Bay to Nova Scotia, In 8 to 100 

 fathoms or more, on shelly and stony bottoms. It is particularly common 

 in the Bay of Fundy, the harbour of Eastport, Me., and the other cold 

 waters of that region, where it is also often found at low- water mark under 

 stones" (Verrill). 



Micrura rubra, Verrill. 



" Bay of Fundy, off Head Harbour, Campo Bello Island, 40 fathoms mud, 

 Aug. 27, 1870" (Verrill). 



Cerebratulus fuscus (Fabricius). 



Planaria fusca, O. Fabricius (1780). 

 Meckelia olivacea, Rathke (1843). 

 Cerehratxdus fuscus, Verrill (1892). 



Eastport, Me.; Grand Manan, N.B. ; and Halifax, N.S. ; "under stones 

 and in sand and gravel near low-water mark, and beyond in shallow water 

 to 20 fathoms or more" (Verrill). Dredged by Packard in 1860, at Salmon 

 Bay, P.Q. (near the mouth of the Esquimaux River, on the north shore of 

 the Gulf of St. Lawrence), in 10 fathoms mud; also, in 1864, in Belles 

 Amours, Bradore Bay, P.Q , in 8 fathoms sand, and at Henley Harbour, 

 Labrador (nearly opposite Belle Isle) in 20 fathoms. Greenland (Fabricius, 

 and Levinsen). 



Cerebratulus cylindricus, Packard. 



Belles Amours Harbour, Bradore Bay, P.Q., one specimen (Packard). 



