110 BULLETIKT 95, UNITED STATES NATIONAL MUSEUM. 



In the specimen 16.5 cm. long, black areas are beginning to ap- 

 pear in the white ground-color dorsally and on distal two-thirds 

 of caudal. The largest specimen agrees well with Kner's illustra- 

 tion of this species. 



Color in life of largest specimen: Gaudy with yellow and black; 

 ground color black or nearly so with five (or six) bright yellow bands, 

 completel}^ encircling body at regular intervals, the first crossing head 

 over posterior edge of preopercle, the second from anterior spines of 

 dorsal, passing just behind ventrals, the third from beneath poste- 

 rior spines of dorsal to anus and spines of anal, fourth halfway be- 

 tween third and fifth, the fifth crossing posterior part of caudal 

 peduncle; these bands wider than eye, but are not solid, including 

 many irregular-shaped black spots; dorsal and anal black with yel- 

 low marks — particularly in continuation of the bars on body ; caudal 

 mottled with black and yellow ; pectoral yellow, with spots and marks 

 of black; ventrals dorsally black, ventrally yellow in proximal part 

 and black in distal region. 



Specimens of 0. fasciatus from Japan show no traces of black 

 supplanting the white bands and have 12 instead of 11 dorsal spines, 

 agreeing in other respects with this species. 



Family LATILIDAE. 



Genus CAULOLATILUS Gill. 



KEY TO SPECIES. 



a\ Head 3.5 to 3.8 in length; depth 4; D. VIII, 26; A. II, 24 or 25; scales 

 16-118-40 princeps, p. 110. 



a \ Head 2.8 to 8.1 in length ; depth 3.1 to 3.3 ; D. VIII, 23 or 24 ; A. I, 22 or 23 ; 

 scales 14-101-35 cabezmi, p. 111. 



139. CAULOLATILUS PRINCEPS (Jenyns). 

 PEJE-BLANCO; PEJE-FINO. 



Latihis princeps Jenyns, Zool. Yoy. Beagle, Fishes, p. 52, pi. 11 ; Chatham 

 Island. 



Caulolatilus princeps Jordan and Evebmann, Fishes North and Mid. Amer., 

 vol. 3, 1898, p. 2276. — Steindachnee, Herpet.-ichthyol., Ergebnisse 

 einer Reise nach Siidamerika, Denkschr. Akad. Wiss. Wien, vol. 72, 

 1902, p. 35. — Snodgrass and Heller, Shore Fishes Galapagos Islands, 

 Proc. Washington Acad. Sci., vol. 6, 1905, p. 417. — Starks, Fishes from 

 Ecuador and Peru, Proc. U. S. Nat. Mus., vol. 30, 1906, p. 799. 



One specimen, field No. 09685, 29 cm. long, from Lobos de Afuera ; 

 one, field No. 09122, 26.8 cm. long, from Callao, Lima Market; and 

 one, field No. 09701, 33 cm. long, from Pisco. 



Head 3.55 to 3.75 in length ; depth 3.9 to 4.1 ; eye 4.4 to 4.8 in head; 

 snout 2.9 to 3.15; maxillary 2.8 to 3.1; interorbital 3 to 3.35; pectoral 



