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Cavefishes
Swampfish, Chologaster cornuta

 
Physical Description: 
	Tiny eyes
	No pelvic fins
	Elongate body, round anteriorly and compressed posteriorly
	Depressed head
	Supraterminal mouth with a fleshy lower lip that occludes the upper lip
	Papillae on head, body, and caudal fin
	Cycloid scales are tiny and embedded
	No gill rakers
	Male snout tip with a Y-shaped fleshy appendage; female snout tip with two fleshy bumps
	Short, rounded dorsal fin
	Spatulate caudal fin
	Brown back, black stripes, orange or yellow cast on the head

Similar species: 
	Springfish (Chologaster agassizi)

Mean body size:
	Adults are 25-50 mm standard length 

Habitat:
	Lowland swampy rivers, ponds, and lakes that are acidic and bog-like

Distribution in VA:
	Chowan, Chickahominy systems in the James drainage, and Dismal Swamp

Food Habits:  
	Midge larvae, amphipods, cladocerans
	Feed at night

Reproductive Habits: 
	Usually die after spawning
	Spawning occurs in early March through mid-April at 13-19C
	Fecundity is 339-426 eggs.
	Maybe branchial brooding, but no evidence of this

Population Status, Economic, or Ecological Importance: 
	Aquarium fish

References:       

Jenkins, R.E and N.M. Burkhead. 1993. Freshwater Fishes of Virginia. American Fisheries Society, Bethesda, Maryland. 



VAFWIS

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