766 PROCEEDINGS OF THE ACADEMY OF [Xov., 



Scomberomorus guttatus (Schneider). 



Scomber yidtatus Schneider, Syst. Ichth. Blooh, ISOl, p. 23, PI. 5. Ad 

 Trauquebariam pelagius inter saxa. 



Head 4f ; depth 4J; D. XVII-iv. 15, 8; A. v, 14, 9; P. i, 20; V. i, 

 5: width of head 2 in its length; depth of head 1^; snout 2f ; eye 5; 

 maxillary li; mandible If; interorbital space 3; least depth of caudal 

 peduncle 4: pectoral ly=^; ventral about 3. Gill-rakers 2 + 9, short, 

 barely half length of filaments. Color when fresh in arrack deep 

 slaty-glaucous above, side and lower surface of body silvery-white. 

 Back and upper portion of sitle with numerous round spots or elongate 

 blotches of deep glaucous, nnich deeper than ground color. Fu'st dor- 

 sal black. Soft dorsal, caudal and pectoral grayish. Lower finlets, 

 ventral and anal whitish, and upper finlets somewhat grayish. Length 

 13f inches. 



Four examples, two of which are young. The latter have the body 

 plain-colored, hardly evidences of spots or only a few ill-defined darker 

 blotches. Spinous dorsal deep black, except white posterior base. 

 Lateral line not forming a scaly keel on side of caudal peduncle, and 

 no keels at bases of caudal lobes. Adult with 27 teeth in upper jaw. 



Padang, Sumatra. Coll. A. C. Harrison, Jr., and Dr. H. ]\L Hiller. 



Acad. Nat. Sci. Phila. and Stanford University. 



Scomberomorus regalis (Bloch). 



Scomber regalis Bloch. Naturg. Ausl. Fisch., MI (X), 1793, p. 3S, PI. 333. 

 (Based on Pater Plunuer's MS., and evidently from the West Indies.) 



Head 4i; depth 4^; D. XVII-v, 12, S: A. v. 14. 8: eye 5 in head; 



snout 2|; maxillary li; interorbital space 3f. Gill-rakers 3 + 12. 



Teeth in jaws jgiij^. Maxillary reaching posterior margin of eye. A 



dark longitudinal line just below dark color of back toward caudal 



peduncle where it becomes obsolete. Iris pale brassy. Lobe of soft 



dorsal above blackish-brown. Length 9f inches. One example from 



San Domingo, West Indies. Prof. W. M. Gabb. 



SIERRA subgen. nov. 

 Type Cybium cavalla Cuvier. 

 Less than 8 gill-rakers below angle, on first arch. Dorsal spines 

 XIV or XVI. Teeth about 30 in each jaw. Lateral line abruptly 

 descending below soft dorsal. 



{Sierra [Spanish], saw. Applied to these fishes by the Mexicans, in 

 the United States corrupted into Cero.) 

 Scomberomorus cavalla (Cuvier). 



Cybium cavalla Cuvier, Regne Animal. II. Ed. II. 1829, p. 200. (Basedon 



Guarapucu Marcgrave. Hist. Xat. Brasil., 164S, p. 178. Brazil.) 

 Cybium acervum Cope, Trans. Amer. Philcs. Soc, XIV, 1871, p. 472. 



Head 4f ; depth 4|; D. XV-vi, 12, 9; A. v, 14, 8; snout 2f in head; 



