PISCES. 433 



maekarel, I can say with confidence that the fish described 



in British Fishes as "dotted" and "scribbled" mackarel 



are accidental varieties.* 

 Spanish Mackarel. (Scomber maculatusj. I am very doubtful 



also whether this is a distinct species. Its variation from 



the typical fish does not appear to me to be sufficient to dis- 

 tinguish it. 

 Tunny. {Tlujnnus vulgaris). Not uncommon as a spring and 



summer visitor, but not often taken. 

 Bonito. {Scomber pelamis). Same. 



Grermon. ( Orcijnus alahnga). Longfinned Tunny. Very rare. 

 Pelamid. (Pelamis sardaj. Belted Bonito. I take this to be a 



fish known to mackarel fishermen as the albaeore, and if so 



it is common in spring and summer. 

 Plain Bonito. {Auxis vulgaris). Rare. A specimen has been 



recently (1877) taken in Mount's Bay. 

 Shortfinned Tunny. {Thynnus brachypterus). "Very rare. 

 Pilot Pish. {Naucrates ductor). Not an uncommon visitor. 



Frequently follows vessels into our harbours. 

 John Doree. {Zeus fab er). Common. 

 Blackfish. {Centrolophus pompilus ; Coryphmna pompilus). Pare. 



Has been usually taken in company with a shark or some 



other large fish. 

 Cornish Centropholus. (C. Britannicus). A specimen was 



thrown on shore near Looe in February, 1859. 

 Ausonia Cuvieri. A single specimen was taken at Falmouth in 



1866. It is supposed to have occurred twice only in British 



seas. 

 Opah. {Lampris Luna). This beautiful fish is but rarely seen. 

 Scad. {Tracliurus vulgaris). Horse mackarel. Common. 

 Derbio. {Centronotus binotatus). A Mediterranean species, of 



which one example occurred in Mount's Bay, in 1857. 

 Boar fish. {Zeus aper). "Very common near the Pundle-stone 



and "Wolf Rocks. In 1 875 large shoals were thrown on 



shore at Scilly in a gale of wind. It has also occurred 



singly at Scilly and Whitesand Bay in Sennen. Elsewhere 



it is rare. 

 Sword fish. {Xiphias gladius). Occurs commonly, but is rarely 



taken. 



