256 FISHES. 



the preceding. (E. niger, scomberius, fasciatus and 

 ornatus of authors.) Represented S. of Va. by P. ra- 

 venelii. (Holbr.) 



3. P. salmoneus, (Raf.) Jordan. LITTLE PICKEREL. 

 WESTERN TROUT PICKEREL. Size and general form of 

 preceding or slenderer; olivaceous green above; white 

 below; sides with many reticulations and curved streaks, 

 instead of bars; a black streak in front of eye as well as 

 below; B.12; D. 13; A. 14; lat. 1. 112. Western streams, 

 abundant in the Ohio Valley. (E. cypho^ E. porosus^ 

 Cope, etc.) (E. umbrosus, Kirtland.) Resembles reticu- 

 latus more than americanus. 



FAMILY CIIL AMBLYOPSID^E. 



(TJie Cave Fishes.) 



Fishes with the ventral fins rudimentary or wanting; 

 the vent jugular, in front of the pectorals, and the eyes 

 sometimes rudimentary and concealed under the skin; 

 margins of upper jaw formed by intermaxillaries alone; 

 head naked; body with small, cycloid scales, irregularly 

 arranged; no lateral line; villiform teeth on jaws and 

 palate; dorsal far back, opposite anal; stomach coecal, 

 with pyloric appendages; some (and probably all) vivi- 

 parous. 



Fishes of small size living in subterranean streams and 

 ditches of the central and southern U. S. Three genera 

 and four species are " all of the family yet known, but 

 that others will be discovered and the range of the 

 present known species extended is very probable. The 

 ditches and small streams of the lowlands of our South- 

 ern Coast will undoubtedly be found to be the home of 

 numerous individuals, and perhaps of new species and 

 genera, while the subterranean streams of the central 



