136 UMBRINA ALBURNUS. 



behind, and has thick muscular walls ; its pyloric branch is short, small, about half as broad as 

 the stomach, from which it departs nearly at a right angle ; there are four ccscal appendages, 

 rather small, and all nearly of the same size. The small intestine runs, with slight flexures, 

 to end in the rectum, which is less capacious. The ovaries are very long and slender, and 

 unite far back. The air-bladder is similar to that of Otolithus regalis, but is rather more pointed 

 behind. 



Habits. It is an uncommon fish on our shores, and, of course, little is known 

 of its habits. 



Geographical Distribution. As yet the Otolithus nothus has been observed 

 only on the coast of South Carolina. 



GENUS UMBRINA. — Cwmer. 



Characters. A single barbel at the lower jaw ; maxillary and inter-maxillary 

 teeth card-like, and arranged in broad bands ; dorsal fins contiguous ; branchial 

 rays seven. 



Remarks. This genus was established by Cuvier, who at first referred to 

 it but few species, though it now includes many. 



UMBRINA ALBURNUS.— iwrn^M*. 



Plate XX. Fig. 2. 



Specific Characters. Body silvery, with several oblique, dusky bars above; 

 silvery-white below; outer series of upper maxillary teeth largest, and rather 

 distant from each other. D. 10 - 1 - 26. P. 20. V. 1-5. A. 1 - 8. C. 18. 



