216 



CoEONULA REGiNA, Darwin, 



" On shreds of the skin of the humpback whale in one of the whale houses " 

 (in Gaspe Bay) " we found a specimen which corresponds exactly with 

 Darwin's description of this species, hitherto ootained only from the Pacific. 

 It is full grown, being nearly two inches in diameter, and was imbedded 

 neady to the summit in the skin. It may be easily distinguished from the 

 common whale barnacle, C. diadema, by its flattened form, its low and 

 smooth ribs delicately marked vv'ilh radiations and transverse ribs with 

 minute tubercles at the intersections, and by the thinness of its radial plates. 

 It would be interesting to know if this Goronula is peculiar to the hump- 

 back, which is very probably an Arctic species visiting both the Pacific and 

 Atlantic " (Sir J. W. Dawson, in the Canadian Naturalist and Geologist for 

 October, 1858). 



copepoda. 



Lern^a branchialis, L. 



Lerncea branchialis, L. ; et auct. 



Lerncea branchialis, var. sigvioidea (Steenstrup and Lutken) 

 S. I. Smith (1883). 



A few specimens that Stimpson referred to this species, with a query, were 

 " found fixed in the flesh of the neck in young cod-fishes " at Grand Manan ; 

 and Verrill says that L. branchicdis is " found attached to the gills of the 

 cod, in the Bay of Fundy." 



Professor S. I. Smith says that one specimen of the var. sigmoidea, without 

 special locality, is among the specimens obtained by the Stearns expedition. 

 Packard, he adds, gives no special locality for his specimens, and says that 

 they were " attached to the skin of the codfish, which makes it almost certain 

 that he observed some entirely different parasite." 



Caligus curtus, Miiller. 



Caligxis curtus, Miiller (1785) ; et auct. 



Caliyus Americanus, Pickering and Dana (1838). 



"Abundant upon the codfish of our coast and of Europe. It is probably 

 the Caligus inscinus of Gould and other American writers," which Stimpson 

 says is "found in great abundance on the surface of the halibut" at Grand 

 Manan ; S. I. Smith (Verrill, 1873 ; Rep. U. S. Fish Comm. for 1871--1872; 

 p. 575). 



Argulus. (Species undetermined.) 



On Gasterosteus and other small fishes taken in a towing net off Pictou 

 Island, N.S., by the writer in 1873. 



