FISHES OF WEST COAST OF PERU. 55 



Genus SARDA Cuvier. 



79. SARDA CHILENSIS (Cuvier and Valenciennes). 

 CHANCILLA; SARAJONE; BONITO. 



Pelamys chilensis Cuvier and Valenciennes, Hist. Nat. Poiss., vol 8, 1831, 

 p. 163 ; Valparaiso.— Gay, Hist. Chile, Zool., vol. 2, 1S48, p. 224.— Stein- 

 DACHNEK, Iclitli. Notizen, vol. 7, 1868, p. 25. — Kitahara, Jouru. Fish. 

 Bur. Tokyo, vol. 6, pt. 1, 1897, p. 3, pi. 4, fig. 10. 



Sarda chilensis Jordan and Gilbert, Proc. U. S. Nat. Mus., vol. 3, 1880, 

 p. 27. — Jordan and Evermann, Fishes North aud Mid. Amer., vol. 1, 

 1896, p. 872. — Abbott, Marine Fishes of Peru, Proc. Acad. Nat. Sci. 

 Phila., 1899, p. 345.— Delfin, Cat. Peces de Chile, 1901, p. 50.— Gilbert 

 and Starks, Fishes of Panama Bay, Mem. California Acad. Sci., vol. 

 4, 1904, p. 68. — Starks, Fishes from Eucador and Peru, Proc. U. S. 

 Nat. Mus., vol. 30, 1906, p. 784. 



One specimen, field, No. 09668, 43 cm. long, from Callao. 



Head 3.63 in length ; depth 4.15 ; eye 8 in head ; snout 2,92 ; maxil- 

 lary 2.15; interoibital 3.29; pectoral 2.15; D. XVIII-I, 13-VIII; 

 A. II, 11-VI. 



Body fusiform, elongate; head long; snout pointed, conical; jaws 

 subequal; teeth in jaws in a single row, strong, conical, curved, about 

 40 in each jaw; similar teeth on palatines, none on vomer; maxillary 

 reaching vertical from posterior border of pupil (agreeing with Gil- 

 bert and Starks's description of Panama individuals and not with 

 Jordan and Evermann, p. 872, 1896) ; gillrakers long and slender, 

 8+16 (in this respect agreeing more closely with Jordan and Ever- 

 mann) ; longest gillraker longer than diameter of eye, 2.40 in snout. 

 Corselet well developed; lateral line wavy, curved sharply upward, 

 under posterior third of soft dorsal ; ventrals short, 2.96 in head. 



Color in alcohol, bluish on back, becoming reddish brown on belly; 

 fins dusky. 



Genus SCOMBEROMORUS Lacepede. 



80. SCOMBEROMORUS SIERRA Jordan and Starks. 

 SIERRA. 



Scomheromortis sierra Jordan and Starks, Fishes of Sinaloa, Proc. Cali- 

 fornia Acad. Sci., ser. 2, vol. 5, 1895, p. 428; Mazatlan. — Jordan and 

 Evermann, Fishes North and Mid. Amer., vol. 1, 1896, p. 874. — Gilbert 

 and Starks, Fishes of Panama Bay, Mem. Cal. Acad. Sci., vol. 4, 1904, 

 p. 68. 



One specimen, field No. 09569, 56 cm. long, from Paita. 



Head 4.8 in length; depth 6.5; eye 6.66 in head; snout 2.84; 

 maxillary 1.75; pectoral 1.56 in head, 7.5 in length; D. XVII-16- 

 VIII; A. II, 15- VIII. 



