Nurseryfish

Nurseryfish
Indian humphead (K. indicus)
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Perciformes
Family: Kurtidae
Bleeker, 1859
Genus: Kurtus
Bloch, 1786
Type species
Kurtus indicus
Bloch, 1786
Synonyms
  • Cyrtus Minding, 1832
  • Curtus (misspelling)

Kurtus is a genus of perciform fishes, called the nurseryfishes, forehead brooders, or incubator fish, notable for carrying their egg clusters on hooks protruding from the forehead (supraoccipital) of the males. Kurtus is currently the only known genus in the family Kurtidae.[1][2]

In addition to the egg hook, the kurtid gas bladder is enclosed in a tubular bony structure evolved from the ribs. In both species, the back is elevated into a hump shape.

Despite their unusual reproductive habits, little is known about these species. They do not survive long in aquaria.

Species

The currently recognized species in this genus are:[3]

References

  1. Johnson, G.D. & Gill, A.C. (1998). Paxton, J.R. & Eschmeyer, W.N., ed. Encyclopedia of Fishes. San Diego: Academic Press. p. 189. ISBN 0-12-547665-5.
  2. Froese, Rainer, and Daniel Pauly, eds. (2013). "Kurtidae" in FishBase. August 2013 version.
  3. Froese, Rainer, and Daniel Pauly, eds. (2013). Species of Kurtus in FishBase. August 2013 version.