MICROPOGON UNDULATUS. 145 



MICROPOGON UNDULATUS. —im??«M5. 



Plate XXI. Fig. 1. 



Specific Characters. Head large ; snout rounded, full, prominent, and from 

 its inferior part, over the upper jaw, hangs a fold, as in Umbrina, which is partially- 

 subdivided into lobes, the external longest and pointed ; mouth inferior ; barbels 

 at the cliin minute ; three large and two small pores near the extremity of the 

 lower jaw; body silvery, slightly shaded above, and marked with numerous 

 minute dusky spots. D. 10-1-27. P. 14. V. 1 - 5. A. 2-8. C. 17. 



Synonymes. Perca undulata, Lin., Syst. Nat., torn. i. p. 483. 



Croker, Gates., Carolina, vol. ii. p. 3, tab. 3, fig. 1. 



Perca undulata, Gmel., Syst. Nat., torn. i. pars iii. p. 1312. 



Le Sciene Croker, Lacep., Hist. Nut. Poiss., torn. iv. p. 184. 



Micropogon undulatus, Cuv. et Val., Hist. Nat. Poiss., torn. v. p. 219. 



Micropogon undulatus, BeKay, Zool. N. Y., part iv. p. 84. 



Micropogon undulatus, Slorer, Synops., p. 73. 



Croker, Vulgo. 



Description. This fish has almost the precise form of an Umbrina, though 

 rather more arched in the back. The head is long, elevated posteriorly, Avith the 

 snout full and rounded. The eyes are large, longest horizontally, near the facial 

 outline, with the superciliary margin prominent, and covered with two or three 

 series of small scales; the posterior margin of the orbit is equidistant between 

 the snout and the posterior angle of the opercle ; the pupil is very dark, the iris 

 silvery, mixed with reddish-grey. The nostrils are double, the posterior very 

 large, sub-oval, rather pointed behind, and directed downwards and forwards, 

 to below the plane of the eye ; the anterior is ^^ery small, round, and midway 

 between the orbit and the snout. 



The mouth is inferior, small, and does not open beyond the posterior nostril ; 

 19 



