692 GEOLOGICAL SURVEY OF NEW JERSEY. 



Order HAPLOMI. 



No precoracoid nor interclavicles ; mouth with teeth ; ventral fins 

 abdominal; no adipose fin; sympleetic present; parietals separated 

 by the supra-occipital ; scapular arch attached to cranium. 



Family CYPRINODONTID.S:. 



Toothed Bliniiows. 



Margin of upper jaw formed by premaxillaries only, freely pro- 

 tractile ; vent abdominal ; body depressed behind, compressed for- 

 ward, covered with large cycloid scales ; no lateral line ; head scaly ; 

 no pseudobranch ; caudal fin not forked ; sexes usually unlike ; fins 

 largest in males ; many are ovoviviparous. 



CYPRINODON, Lac. 



(Iiebias, Cny.) 



variegatus, Lac. (ovinus, bovinus, eximius.) Mummichog. Killie- 

 fish. 



Oviparous; intestine short; carnivorous; teeth incisor- like, 

 notched, in one row ; body stout ; dorsal rays, 10 ; back arched ; 

 male dusky, traces of bars ; caudal, dusky bar at base ; tips of 

 dorsal and anal dusky ; scales with small tubercles in breeding 

 season ; femak olivaceous ; sides silvery, with dark bars, &c. ; a 

 dark spot on dorsal ; caudal as in male ; dorsal fin behind ven- 

 trals. Anal rays, 10 ; rows of scales, 25 ; male, 2J inches ; 

 female, IJ inches. Brackish water. 



" This little fish is abundant everywhere, where there is suffi- 

 cient salt water to sustain them. They wander about in large 

 schools, and are of little value." 



