Fundulus diaphanus

Fundulus diaphanus
Banded Killifish – Fundulus diaphanus
FamilyScientific NameAuthorYearCommon Name
FundulidaeFundulus diaphanus(Lesueur)1817Banded Killifish

Fundulus diaphanus

Unique Characters: Lateral scales 35-50. Depth of caudal peduncle 2.0-2.8 times in the length of the caudal peduncle.

Similar Species:

“Lake Phelps” Killifish
Fundulus sp.

Waccamaw Killifish
Fundulus waccamensis

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

“Lake Phelps” Killifish Fundulus sp.. Only occurs in Lake Phelps. Usually 54-64 lateral scales. Genetically distinct from Fundulus diaphanus and F. waccamensis.

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

Mummichog
Fundulus heteroclitus

Marsh Killifish
Fundulus confluentus

Fundulus heteroclitus
Mummichog – Fundulus heteroclitus
Fundulus confluentus
Marsh Killifish – Fundulus confluentus

Mummichog Fundulus heteroclitus. Black spot on back in front of dorsal fin. Rounded caudal fin, blunt snout, and stout body. Dorsal fin origin slightly in front of anal fin origin. Male often has dark spot/blotch in dorsal fin. Gill rakers 9 or 10.

Marsh Killifish Fundulus confluentus. Pale, often golden spot on body at base of dorsal fin. Ocellated black spot in dorsal fin of female. Gill rakers 5. Caudal fin rounded. Occurs primarily in brackish or salt water.

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