Fundulus majalis

Fundulus majalis
Striped Killifish – Fundulus majalis – Female
FamilyScientific NameAuthorYearCommon Name
FundulidaeFundulus majalis(Walbaum)1792Striped Killifish

Fundulus majalis

Unique Characters: Jaw teeth in more than a single row. 9 or more scale rows between origin of dorsal fin and origin of anal fin. Dorsal fin origin over or anterior to anal fin origin. Dorsal-fin soft rays 10-15. Mouth distinctly below a horizontal line drawn through the middle of the eye.

Similar Species:

Spotfin Killifish Fundulus luciae

Mummichog Fundulus heteroclitus

Marsh Killifish Fundulus confluentus

Fundulus luciae
Spotfin Killifish – Fundulus luciae
Fundulus heteroclitus
Mummichog – Fundulus heteroclitus
Fundulus confluentu
Marsh Killifish – Fundulus confluentus – Male

Spotfin Killifish Fundulus luciae. Jaw teeth in more than a single row. 9 or more scale rows between origin of dorsal fin and origin of anal fin. Dorsal fin origin distinctly behind origin of anal fin. Dorsal-fin soft rays 8-11.

Mummichog Fundulus heteroclitus. Jaw teeth in more than a single row. 9 or more scale rows between origin of dorsal fin and origin of anal fin. Dorsal fin origin over or anterior to anal fin origin. Dorsal-fin soft rays 10-15. Mouth level with, or slightly above, a horizontal line drawn through the middle of the eye. Origin of dorsal fin distinctly anterior to origin of anal fin, more pronounced in males. Males with dark and silvery vertical bars on side of body, silvery dots between bars.

Marsh Killifish Fundulus confluentus. Jaw teeth in more than a single row. 9 or more scale rows between origin of dorsal fin and origin of anal fin. Dorsal fin origin over or anterior to anal fin origin. Dorsal-fin soft rays 10-15. Mouth level with, or slightly above, a horizontal line drawn through the middle of the eye. Origin of dorsal fin more or less over origin of anal fin. Males with numerous dark vertical bars on side of the body but lacking silvery dots.

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