SHORE FISHES OF GALAPAGOS ISLANDS 



371 



Serranus humeralis BOULENGER, Cat. Fishes Brit. Mus., I, 2d Ed., 278, 1895. 

 Paralabrax humeralis, JORDAN & EVERMANN, Fishes North and Mid. Amer. , 



i, 1196, 1896. 

 Paralabrax albomaculatus, ABBOTT, Proc. Acad. Nat. Sci. Phila. 1899, 348. 



Range. Galapagos Archipelago. 



If this species is distinct from Paralabrax humeralis, it is known 

 only from the Galapagos Islands. We have numerous specimens 

 from Tagus Cove, Albemarle, and from Harrington. 



The synonymy given above shows that this species has been by 

 some authors regarded as distinct, while others have included it in P. 

 humeralis. Abbott (1899), comparing some young examples from 

 Callao, Peru, with young examples from the Galapagos Islands in 

 the Stanford University collection, concluded that the 2 should be 

 retained as separate species. We have examined these same speci- 

 mens, together with the numerous adults that we obtained at the 

 Galapagos Islands, and likewise cannot regard the specimens from the 

 2 localities as the same species, although if adult material from the 

 mainland were at hand this might be possible. 



MEASUREMENTS AND FIN RAYS OF: 



The above figures show that the Galapagos specimens, representing 

 Paralabrax albomaculatus, compared with specimens of approxi- 

 mately the same size from Peru, that may be taken to represent the 

 typical P. humeralis of Cuvier & Valenciennes (their specimen being 

 from Chile) have a somewhat larger eye, a wider interorbital space, 

 a wider base for the pectoral fin, fewer pectoral rays, and a greater 

 number of dorsal rays. The figures show also that in the adult of P. 

 albomaculatus the interorbital space is proportionally much wider 

 and the eye smaller than in the young. 



Other characters of the species are as follows : Snout rather pointed, 



