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better separated from the dorsal and anal fin folds. The jaws are 

 larger, the lower jaw projecting well beyond the upper one. In the 

 next stage (Plate I. fig. 4), the permanent caudal is forming, and 

 the original muscular bands around the body are more distinct than in 

 the previous stage, otherwise the young fish does not differ materially 

 from the stage of Plate I. fig. ^. In the next stage (Plate I. fig. 5) 

 the caudal is almost terminal, and the posterior dorsal as well as the 

 anal are indicated by the rudimentary permanent rays along the 

 dorsal and anal lines. 



In Plate II. fig. 3, the young Bass has a symmetrical rectangular 

 caudal, well-developed pectoral and ventral fins, with anal and poste- 

 rior dorsal completely separated from the caudal, the permanent rays 

 large. The anterior dorsal is low, and still united with the poste- 

 rior dorsal ; the line of pigment spots extending along the ventral 

 side is the only prominent one. A young Bass in the stage of 

 Plate II. fig. 4, shows a forked caudal comparatively larger than in 

 the adult, while the outline of the dorsal and anal is lobed, and the 

 anterior dorsal distinct from the posterior one, and fully as high. 

 The head has also become more elongated, and the little Bass assumes 

 somewhat the coloring of the adult. In addition to the original ven- 

 tral line of pigment spots, two prominent stripes of elongated black 

 spots extend along the lateral line, and a less distinct line runs along 

 the base of the dorsals. The line at the base of the dorsals is some- 

 times present in much younger specimens (Plate I. fig. 3 a) not older 

 than those of Plate I. fig. 3. In a younger stage than Plate I. fig. 

 3 a, this dorsal line was interrupted, consisting of three patches along 

 the base of the dorsals. The pigment spot which appeared at the 

 base of the caudal rays as early as in stage Plate I. fig. 2, now 

 extends as a short line across the base of the permanent rays. 



Temnodon saltator, Lin. (Fonatomus saltatrix, Gill). 



(Plate II. fig. 5.) 



Of the Carangidse I have only found on the surface one small 

 Blue fish (Plate II. fig. 5) measuring 9™"" in length. The tail fin was 

 but slightly forked ; the anterior dorsal rudimentary, but the base of 

 the permanent fin rays already present; permanent fin rays existing 

 in the posterior dorsal as well as the anal ; large pectorals, rudimen- 

 tary ventrals. Teeth of upper and lower jaw already quite prominent ; 

 body elongate, angular. Prominent line of black pigment spots 



