,114 PROCEEDINGS OF THE ACADEMY OF [1897. 



124. Gerres brasilianus Cuvier & Valenciennes. Stone Bar. 



Gerres brasiliamis Cuvier & Valenciennes, VI, 458, 1830 (Brazil ; Porta 

 Eico); Evermann& Meek, Proc. Acad. Nat Sci. Phila., 1886, 268. 



Four fine specimens, 9 to 10 in. long. Silvery-gray, finely dusted 

 with black anteriorly ; dark lines following the rows of scales ; dor- 

 sal dusky, almost black in one specimen; caudal dusky, anals and 

 ventrals scarcely dusky ; ventrals slightly tinged with yellow ; pec- 

 torals colorless, one axil dusky ; no supraocular spot. 



SCI^ENID^E. 



125. Cynoscion jamaicensis (Vaillant & Bocourt). Mongalar Drummer. 



Otolithus jamaicensis Vaillant & Boucourt, Miss. Sci. au Mexique, Poissons, 

 1874, 156 (Jamaica). 



Head 3 ; depth 3 \ (4f with caudal) ; eye 4£ in head ; dorsal X-I, 

 25 to 27 ; anal I, 9 ; scales 63. 



Snout 3f in head, longer than eye ; maxillary to below middle of 

 pupil, 2i in head, lower jaw projecting. Depth of head over hinder 

 margin of eye If in its length. A single large canine in front of 

 upper jaw, four or five small teeth on side of lower jaw, other teeth 

 few and small. Tongue free at end and sides, with a broad median 

 groove. Slit of posterior nostril nearly vertical. Gill-rakers 3+7 

 =10, the longest \ eye. Opercular flap extending beyond upper 

 base of pectoral. Preopercle with a membranous margin. Dorsals 

 contiguous; membrane of anal scaled almost to tip, that of dorsal 

 about half way. Scales weakly ctenoid, those on top of head irregu- 

 lar in size. Pectorals about equal in length to ventrals, \\ in head ; 

 caudal double concave, middle rays longest. Curve of lateral line 

 gradual, becoming straight behind the fourth dorsal ray. 



Color, in alcohol, very dark olive above, the entire sides with 

 golden lustre, paler below ; dorsals, pectorals and caudal lightly 

 punctate, lower fins colorless. Tip of both jaws black. Inside of 

 mouth silvery white, top of tongue and a band around inside of 

 lower jaw bright yellow, roof of mouth lightly stained with yellow 

 in some places. 



This species is closely related to Cynoscion obliquatus, differing in 

 having the caudal doubly concave, the preopercle unarmed, and the 

 anal with but nine rays, and especially in its much more robust 

 form. 



The above description is based on five specimens 8 to 12 inches 

 long ; No. 4,564, Leland Stanford, Jr. University. 



