Johnius
Sign in to saveJohnius is a genus of marine ray-finned fishes belonging to the family Sciaenidae, the drums and croakers. They are commonly known as croakers due to their ability to produce purring, croaking and knocking sounds. The sounds are produced mainly at night and are thought to be either involved in defense or for courtship.
Wikidata facts
- Instance of
- taxon
- Parent taxon
- Sciaenidae
- Image
- Johnius amblycephalus.jpg
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Article
6 sectionsContents
- Taxonomy
- Etymology
- Species
- Characteristics
- Distribution
- References
Johnius is a genus of marine ray-finned fishes belonging to the family Sciaenidae, the drums and croakers. They are commonly known as croakers due to their ability to produce purring, croaking and knocking sounds. The sounds are produced mainly at night and are thought to be either involved in defense or for courtship.
==Taxonomy== The genus name was erected by Marcus Bloch in 1793 based on a specimen obtained from Tranquebar from Reverend Christoph Samuel John which was named as Johnius carutta. There are about 36 species in the genus, all within the Indo-West Pacific waters. This genus has been placed in the subfamily Otolithinae by some workers, but the 5th edition of Fishes of the World does not recognise subfamilies within the Sciaenidae which it places in the order Acanthuriformes.