Doras

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Doras
Scientific classification
Kingdom: Animalia Phylum: Chordata Class: Actinopterygii Order: Siluriformes Family: Doradidae Genus: Doras Lacepède, 1803
Binomial name
Doras carinatus (Linnaeus, 1766)
Doras micropoeus (Eigenmann, 1912)
Synonyms
Mormyrostoma Miranda Ribeiro, 1911

Doras is a small genus of catfishes (order Siluriformes) of the family Doradidae. This genus contains two extant species, D. carinatus and D. micropoeus.^[1]

Contents 1 Distribution 2 Description 3 Fossil species 4 References

[edit] Distribution

Doras species are distributed in South America. D. carinatus inhabits the Essequibo River basin and other coastal drainages east to the mouth of the Amazon River, and is possibly in lower Amazon and lower Orinoco River basins.^[2] D. micropoeus is found in the Essequibo, Demerara and Courantyne River basins and possibly other coastal drainages east to mouth of Amazon River.^[3]

[edit] Description

D. carinatus grows to a length of 30.0 centimetres (12 in) SL.^[2] D. micropoeus reaches a maximum size of 35.0 cm (14 in) SL.^[3]

D. carinatus can emit sounds by moving its pectoral spines. Every basic unit of sound emitted lasts for 60-70 milliseconds, with a frequency of 60-90 Hertz corresponding to the reply frequency of the muscles utilized.^[2]

[edit] Fossil species

• †Doras dioneae (Miocene)

[edit] References

1. ^ Ferraris, Carl J., Jr. (2007). "Checklist of catfishes, recent and fossil (Osteichthyes: Siluriformes), and catalogue of siluriform primary types" (PDF). Zootaxa 1418: 1–628. 
2. ^ ^{a b c} "Doras carinatus". FishBase. Ed. Ranier Froese and Daniel Pauly. June 2007 version. N.p.: FishBase, 2007.
3. ^ ^{a b} "Doras micropoeus". FishBase. Ed. Ranier Froese and Daniel Pauly. June 2007 version. N.p.: FishBase, 2007.