50 BULLETIlSr 95, rNITED STATES NATIONAL MUSEUM. 



Mugil ranimelslicrgii Tschxjdi, Fauna Peruana, Iclitli., 1S45, p. 20. — Delfin, 



Cat. Feces de Chile, 1901, p. 48. 

 Mugil Uza Gay (not Cuvier and Valenciennes) Hist. Chile Zool., vol. 2, 



1846, p. 256, I, Atlas Zool.. pi. 4 bis, fig. 2, 1854. 

 Mugil mexicanus Steindachnek, Ichth. Beitr., vol. 3, 1875, p. 59, pi. 8. 

 Mugil charlottae Steindachnek, Herpet.-ichthyoL, Ergebnisse einer Reise 



nach Siidamerika, Denkschr. Akad. Wiss. Wien, vol. 72, 1902, p. 41, 



pi. 4, fig. 2, 2a; Guayaquil, Ecuador. 



Two specimens, field Xo. 444, 20.9 and 29.5 cm. long, from Callao ; 

 4, field No. 09153, 10 to 15.6 cm. long, from Ancon, taken on beach 

 with seine ; 4, field No. 5C3, 14.7 to 15.T cm. long, from the market of 

 Arequipa, stated to be from Kio Tambo ; 16, field No. 302, 3.4 to 7.9 

 cm. long, and 3 specimens, No. 300, 10.7 to 15 cm. long, from Eio 

 de Eten, about 1 mile from the mouth, Eten; 3, field No. 271, 11 to 

 11.6 cm. long, from Eimac River below Lima ; 6, field No. 09428, 4.7 

 to 8.5 cm. long, and 10 specimens. No. 09429, 3.6 to 4.4 cm. long, from 

 Pacasmayo, where it was abundant; and 21, field No. 73, 3.9 to 4.2 

 cm. long, from Callao. Everywhere near the mole the water SAvarmed 

 with these little fishes. 



Head 3.6 in length; depth 3.85; eye 4.3 in head; snout 4.33: 

 maxillary 3.85; interorbital 2.24; pectoral 1.73; ventrals 1.91; D. 

 IV-I, 8; A. Ill, 8; scales 40 (+3) -13. 



Body robust, dorsal and ventral outline evenly arched, moderately 

 deep; head depressed, jaws subequal; maxillary reaching vertical 

 from anterior border of eye ; a single row of very small slender teeth 

 on outer fleshy edge of each jaw; eye moderate, adipose eyelid well 

 developed, covering eye except pupil; interorbital broad and flat; 

 distance from tip of snout to origin of spinous dorsal 1.98 in length ; 

 distal border of soft dorsal and anal concave; caudel forked; ven- 

 trals short, tips reaching midway from base to vent ; pectoral short, 

 not reaching vertical from origin of spinous dorsal; scales large, 

 regular; head scaled; soft dorsal and anal without scales. 



Color in alcohol, back dusky, bluish, sides and belly sihery, cen- 

 ters of scales on sides dusky, forming longitudinal dusky stripes 

 bordered by stripes of silver; fins dusky, base of pectoral dusky. 

 Description of a specimen 29.5 cm. in length from Callao. 



Another individual from the same locality, 20.9 cm. in length, 

 has head 3.54 in length; depth 3.95; eye 4 in head; snout 4.36; 

 maxillary 4; interorbital 2.3; pectoral 1.66; ventral 1.92; D. IV-1, 

 8; A. Ill, 8; scales 40 (-f 3) -13. 



An example 13 cm. in length from Eten has head 3.4; depth 3.62; 

 eye 4.44; snout 4.15; maxillary 4.15; interorbital 2.38; pectoral 1.55; 

 ventrals 1.82. 



Behind the outer row of teeth in the lower jaw, slender bicuspid 

 teeth occur — these can not be made out in the large examples and in 



