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Johnius
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.
34 branches of this genus, most-observed first · about 34 known species
Sharp-toothed Hammer Croaker
speciesJohnius borneensis
Belenger's Croaker
speciesJohnius belangerii
Johnius distinctus
speciesJohnius distinctus
Green-backed Croaker
speciesJohnius amblycephalus
Coitor croaker
speciesJohnius coitor
Bottlenose Croaker
speciesJohnius australis
Big-snout Croaker
speciesJohnius macrorhynus
Trewavas' Croaker
speciesJohnius trewavasae
Caroun Croaker
speciesJohnius carouna
Johnius macropterus
speciesJohnius macropterus
Johnius grypotus
speciesJohnius grypotus
Johnius plagiostoma
speciesJohnius plagiostoma
Majan croaker
speciesJohnius majan
Johnius sina
speciesJohnius sina
Johnius weberi
speciesJohnius weberi
Karut Croaker
speciesJohnius carutta
Sin Croaker
speciesJohnius dussumieri
Smooth Croaker
speciesJohnius laevis
Johnius pacificus
speciesJohnius pacificus
Johnius dorsalis
speciesJohnius dorsalis
Johnius elongatus
speciesJohnius elongatus
Johnius gangeticus
speciesJohnius gangeticus
Johnius heterolepis
speciesJohnius heterolepis
Johnius hypostoma
speciesJohnius hypostoma
Johnius mannarensis
speciesJohnius mannarensis
Johnius trachycephalus
speciesJohnius trachycephalus
Johnius medidentatus
speciesJohnius medidentatus
Paperhead Croaker
speciesJohnius novaeguineae
Johnius sasakii
speciesJohnius sasakii
Johnius taiwanensis
speciesJohnius taiwanensis
Johnius latifrons
speciesJohnius latifrons
Johnius fuscolineatus
speciesJohnius fuscolineatus
Johnius philippinus
speciesJohnius philippinus
Johnius cantori
speciesJohnius cantori
Where it lives
Recorded sightings
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geo-referenced records in GBIF, from museums, herbaria and field observers.
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In the stacks
Searching the stacks…
Every page naming Johnius in the Biodiversity Heritage Library →
This page is assembled live from iNaturalist, GBIF, Wikipedia, the Source Library and the Internet Archive. It is not yet part of the hand-edited codex. iNaturalist taxon 89185.