THE SHORE FISHES OF PERU 281 



arched anteriorly, attaining middle of side over or somewhat in 

 advance of origin of anal; scales thin, strongly ctenoid, extending for- 

 ward nearly to tip of snout, and on bases of second dorsal, anal, and 

 ventral, and on basal half or so of caudal, 7 or 8 oblique rows between 

 lateral line and first dorsal spine, and 6 or 7 between it and first ray of 

 second dorsal; dorsal fins close together, the spines very slender, the 

 third or fourth the longest, reachmg beyond the tip of some of the 

 succeeding spines if deflexed, 1.8 to 2.1 in head; second dorsal highest 

 anteriorly, none of the rays as long as the longest spine, margin of fin 

 nearly straight; caudal lunate, both lobes acute, the upper one slightly 

 the longer; anal with a nearly straight margin, the second spine fairly 

 strong, 2.5 to 2.8 in head; ventral rather large, reaching rather more 

 than halfway to anal, 1.5 to 1.55 in head; pectoral fairly small, the 

 third or fourth ray longest, 1.6 to 1.8 in head, 5.3 to 5.6 in length. 



Figure 59. — Odonloscion australis, new species, From the type, 80 mm. long, Lobos de 

 Tierra Bay, Peru (U.S.N.M. No. 128023). 



Color olive-gi'ay on back, shading into the bright silvery of the 

 lower parts along middle of side; back and side with three dark longi- 

 tudinal stripes; the uppermost one extending from side of nape to 

 origin of second dorsal, and thence along the base of this fin and 

 on dorsal surface of peduncle; the second extending backward from 

 upper posterior margin of eye, and disappearing below posterior part 

 of second dorsal ; the third one very narrow, and extending from poste- 

 rior angle of opercle, and ending in a prominent caudal spot; opercle 

 dark underneath near upper margin, this color showmg tlu-ough on 

 the outside as a dark area; dorsal and caudal fins olive; the other fins 

 paler. 



Four specimens, 73 to 87 mm. (64 to 70 mm. to base of caudal) long, 

 are included in the collection furnished by the Mission. These were 

 taken with a seine in Lobos de Tierra Bay. A specimen 80 mm. 

 (64 mm. to base of caudal) long (U.S.N.M. No. 128023) has been 

 selected as the type. The following proportions and enumerations 



