Fundulus heteroclitus

Fundulus heteroclitus
Mummichog – Fundulus heteroclitus
FamilyScientific NameAuthorYearCommon Name
FundulidaeFundulus heteroclitus(Linnaeus)1766Mummichog

Fundulus heteroclitus

Unique Characters: Truncate caudal fin, which is rounded in the other Fundulus. No black spot in dorsal fin of male or female. Lateral scales 35-50. Ten to 20 thin bars on the side, bluish green in the male and brown in the female. No dark spot on back in front of the dorsal fin. The dorsal fin origin is in front of the anal fin origin. Female with long genital pouch that extends to near tip of anal fin.

Similar Species:

Juveniles of Mummichog look similar to the other estuarine species of Fundulus.

Waccamaw Killifish
Fundulus waccamensis

“Lake Phelps” Killifish
Fundulus sp.

Fundulus waccamensis
Waccamaw Killifish – Fundulus waccamensis
Fundulus cf diaphanus
“Lake Phelps” Killifish –
Fundulus sp.

Waccamaw Killifish Fundulus waccamensis. Occurs only in Lake Waccamaw. Slender body. Usually has 54-64 lateral scales.

“Lake Phelps” Killifish Fundulus sp. Occurs only in Lake Phelps and is genetically distinct from F. waccamensis.

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