Apogonidae

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Cardinalfishes are a family, Apogonidae, of ray-finned fishes found in the Atlantic, Indian, and Pacific Oceans; they are chiefly marine, but some species are found in brackish water and a few (notably Glossamia) are found in fresh water. A handful of species are kept in aquariums and are popular as small, peaceful, and colourful fish. The family includes about 370 species.

They are generally small fish, with most species being less than Template:Convert, and are often brightly coloured. They are distinguished by their large mouths, and the division of the dorsal fin into two separate fins. Most species live in tropical or subtropical waters, where they inhabit coral reefs and lagoons.[1]

They are nocturnal, spending the day in dark crevices within the reef. At least some species brood their eggs inside the mouths of the males.[1] Males do not feed during this incubation period. Males incubate the eggs in their mouth due to having longer heads and a larger jaw, which females do not acquire.[2] Script error: No such module "labelled list hatnote".

Classification

Eschmeyer's Catalog of Fishes recognises four subfamilies of the Apogonidae:[3][4][5]

Fossil genera

File:Enoplosus pygopterus fossil.jpg
Fossil of Eosphaeramia, an Eocene cardinalfish from Italy

The following fossil genera are also placed here:[8]

Fossil otoliths assigned to the otolith-based genus Apogonidarum are known from the Late Cretaceous (Maastrichtian) of India and North Dakota, USA. If of apogonids, these represent the oldest record of the group.[11]

References

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External links

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  1. a b Script error: No such module "citation/CS1".
  2. Hoey, A., Bellwood, D., & Barnett, A. (2012). To feed or to breed: Morphological constraints of mouthbrooding in coral reef cardinalfishes. Proceedings: Biological Sciences, 279(1737), 2426–2432.
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  6. Mabuchi, K., Fraser, T.H., Song, H., Azuma, Y. & Nishida, M. (2014): Revision of the systematics of the cardinalfishes (Percomorpha: Apogonidae) based on molecular analyses and comparative reevaluation of morphological characters. Zootaxa, 3846 (2): 151–203.
  7. Fraser, T.H. & Prokofiev, A.M. (2016): A new genus and species of cardinalfish (Percomorpha, Apogonidae, Sphaeramiini) from the coastal waters of Vietnam: luminescent or not? Zootaxa, 4144 (2): 227–242.
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