No. VII. CRUSTACEA. 247 



Several specimens were collected, including males and 

 females, of a species of Phyllopoda, which I refer to the B. 

 arcticus of Verrill. 



These specimens differ slightly from the descriptions of 

 B. arcticus and groenlandicus, as will appear from my 

 description. 1 If distinct (which may be possible, although 

 I think it more probable that the three forms are varieties 

 of one and the same species), the species may be designated 

 B. Verrilli. 



COPEPODA PARASITICA. 



Lernceopoda arcturi, Miers, sp. n. PL III. fig. 2. 



This species, as will appear from the description, differs 

 from its nearest ally, the L. Edwardsii, Olsson, in the some- 

 what shorter ovaries and abdomen, and the form of the claw 

 of the first maxilliped. The L. Edwardsii is known to me 

 only from the description. 



Floeberg Beach, parasitic on the gills of Salmo arctiirus 

 Othr. 



Lernceopoda elongata, Grant. 



Port Foulke (Dr. Hayes).] 



[Hcemobaphes cyclopterina, Fabricius. 



Littleton Island ; attached to the gills of Gymnetes viri- 

 dis (Dr Hayes).] 



CIRRIPEDIA. 



BALANIDJS. 



Balanus porcatus, Da Costa. 



Cape Napoleon, from a depth of 50 fathoms, five speci- 

 1 Op. cit. 



