14 



UNITED STATES AND MEXICAN BOUNDARY. 



Syn. —Perca widulata, Linn. Syst. Nat. I, 483 ; &, ed. Xllla, Gmelini, I, m, 1788, 1312. 



Mcropogon undulatus, Cuv. & Val. Hist. nat. Poiss. V, 1830, 219.— DeKay, New Y. Fauna IV, 1842, 84, 



Storer, Synops. 1846, 73— Holbr. Ichth. of South Ca. 1855, 145 ; pi. xxi, fig. 1. 



A vertical line dropped from the origin of the first dorsal intersects the posterior edge of the 

 opercle, and hence passes in advance of the base of the pectoral fins. The latter are more 



elongated than the ventrals. 



Br. VII : VII ; D X, I, 29 ; A II, 8 ; 



7,1,4; VI, 5; P 11 



. The ground color is silvery, greyish along the dorsal region, with oblique blackish bands 



extending somewhat beyond the lateral line, whilst the sides of the head, the remaining portion 

 of the flanks and the belly, are of a brilliant lustre. The second dorsal exhibits one or two 

 longitudinal series of dark spots between the rays. The dorsal bands themselves are the result 

 of series of spots. 



undulatus* size of life ; fisr, 2, the head from 



to show the mouth ; fig. 3 is a scale from the dorsal region ; fig. 4, a scale from the lateral 

 line ; and fig. 5, a scale from the abdominal region. 



List of specimens. 



Catal. 

 No. 



No. of 

 spec. 



Aore 



G26 



1 



627 

 628 

 629 



1 

 1 



1 



Adult. 



Locality 



When 

 collected. 



Whence obtained. 



Nature of 

 specimen. 



Collected by- 



Mouth of Rio Grande del Norte (Rio 

 Bravo). 



Indianola, Texas. 



Galveston, Texas 



St. Joseph's Island, Texas 



1853 



1854 

 1853 

 1853 



Major Emory 



do 



Alcoholic. Jno. H. Clark.... 



do.... Dr. C.B. Kennedy 



do 



Lieut. Whipple.. , 



G. Wurdemann. . .... .do 



do 



G. Wurdemann 



JOHNITJS OCELLATUS, Grd. 



Spotted Bass. 



Plate VIII, Figs. 1—4. 



Spec. Char. —The head constitutes alout the fourth of the length, in which the caudal fin itself enters nearly six times. The 

 greatest depth, under the anterior margin of the first dorsal fin, is contained four times and a half in the length. The mouth 

 is large ; its gape nearly horizontal ; the posterior extremity of the maxillary extending to a vertical line drawn across the 

 posterior rim of the orbit. The eye is sub-circular ; its horizontal diameter entering six times and a half in the length of the 

 side of the head. A vertical line dropped from the origin of the first dorsal passes immediately behind the base of the pectorals 

 and intersects the base of the first soft ray of the ventrals. 



Syn.— Perca ocellata, Linn. Syst. Nat. I, 483 ; &, ed XHIa, I, iii, 1788, 1313.— Shaw, Gen. Zool. IV, 1800, 550. 



Sciaena imberbis, Mitch, in Trans. Lit. and Philos. Soc. New Y. I, 1815, 411. 



Corvina ocellata, Cuv. & Val. Hist. nat. Poiss. V, 1830, 134; pi. cviii.— DeKay, N. Y. Fauna IV, 1842, 75 ; pi. 



xxi, fig. 6.— Storer, Synops. 1846, 67.— Holbr. Ichth. of South Ca. 1855, 149 ; pi. xxi, fig. 2. 



The pectorals are nearly equal to the ventrals in length. The base of the anal fin is con- 



tained about eleven times in the total length 

 base of the second dorsal is twice that of the first. 



its exterior 



margin 



The 



3,1,8,7,1,2: VL5: PIT 



The color is silvery ; the dorsal region bluish or greyish ; the lower part of the flanks and 



abdomen 



^ ' «J X ~" w ^-*-^v> vi. tuu V4Lppv>i ±\J %J\j \JL ULIKJ \/CLLL\ACUL JJLUL# 



Plate VIII, fig. 1, represents Johnius ocellatus, somewhat reduced in size; fig. 2 is a scale 

 from the dorsal region ; fig. 3, a scale from the lateral line ; and, fig. 4, a scale from the 

 abdominal resrion. 



