1904.] NATURAL SCIENCES OF PHILADELPHIA. 765 



Scales not evident except in lateral line where they are very small. 

 Tubes small. A few small scales above base of pectoral behind gill- 

 opening, and along base of spinous dorsal. Lateral line a little high 

 at first then sloping down gradually behind soft dorsal, wavy to base 

 of caudal, though median, and not forming a keel. Pectoral with 

 distinct axillary cavity. Inner ventral ray well adnate to abdomen 

 by means of membrane. Eye without adipose eyelid, but skin on 

 postocular region just behind eye adipose-like. 



Spinous dorsal inserted well forward, about midway between tip 

 of snout and origin of soft dorsal, a little behind that of pectoral, 

 anterior spines longer than others, first two close together and fourth 

 longest. Base of fin depressable in scaly sheath. Soft dorsal inserted 

 a little in advance of that of soft anal, nearly midway between front 

 margin of orbit and base of caudal, anterior rays highest, graduated 

 down from first developed ones. Anal similar, also finlets. Caudal 

 broad, deeply forked, lobes slender, their outer edges straight, and 

 tips pointed. Pectoral broad, high, and upper rays longest, first simple 

 and enlarged. Ventral small, inserted well behind origin of pectoral 

 or about under its posterior base, and rays stout. 



Color in alcohol, back and uppermost surface rather light brown, 

 without traces of spots or markings. Lower surface including greater 

 portion of sides bright silvery-white. Greater part of head with 

 silvery. Fins pale or dilute warm olive-brown, except spinous dorsal. 

 Latter whitish, except upper anterior portion which is blackish-brown. 

 Pectoral with brownish, especially proximally. Ends of elevated soft 

 dorsal and caudal lobes dusky. Ventral and anal whitish. Iris dilute 

 brassy-white. Peritoneum pale or silvery. 



Length 7 inches. 



Type No. 11,400, A. N. S. P. West coast of Africa. Dr. Savage. 



One example which differs from Scomberomorus tritor (Cuvier)-' 

 in the fin radii. That fish cannot be identical with Scomberomorus 

 cavalla (Cuvier) as claimed by Dresslar and Feslar^^ if the original figure 

 is correct as it shows the depth about 4^. Bleeker's fish^^ is closer, 

 though it may be different. This latter agrees best with S. argyreus. 

 Apodontis may represent a distinct subgenus, as it is said to have strong 

 conical teeth .^^ 



i^Apybpioq^ silvered.) 



■^ Hist. Nat. Poiss., VIII, 1831, p. 129, PI. 218. 



2= Bull. U. S. Fish Comm., VII, 1887 (1889), p. 444. 



23 Nat. Verh. Hoi. Maat. Wet. Haarlem, XVIII, 1863, p. 72. 



" Proc. Zool. Soc. London, 1, 1830-1, pp. 146, 169. 



