A New Species of Catfish of the Genus Gogo from Northeastern Madagascar (Siluriformes: Anchariidae)

Gogo atratus is a new species of anchariid catfish described from the Mananara du Nord River drainage in northeastern Madagascar. It can be distinguished from congeners by a longer snout (54.8–56.4% HL, vs. 47.1–54.3 in congeners) and faintly mottled dark gray coloration (vs. uniform brown, highly m...

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Veröffentlicht in:Copeia 2008-06, Vol.2008 (2), p.395-400
Hauptverfasser: Ng, Heok Hee, Sparks, John S, Loiselle, Paul V
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Sparks, John S
Loiselle, Paul V
description Gogo atratus is a new species of anchariid catfish described from the Mananara du Nord River drainage in northeastern Madagascar. It can be distinguished from congeners by a longer snout (54.8–56.4% HL, vs. 47.1–54.3 in congeners) and faintly mottled dark gray coloration (vs. uniform brown, highly mottled dark gray and cream, or mottled brownish-gray). The following combination of characters further distinguishes Gogo atratus from congeners: dorsal-spine length 17.7–20.6% SL, pectoral-spine length 16.5–18.9% SL, length of adipose-fin base 23.6–27.8% SL, head width 17.8–18.9% SL, interorbital distance 28.9–30.5% HL, eye diameter 13.0–14.3% HL, unicuspid teeth, and straight dorsoposterior margin of dorsal fin.
doi_str_mv 10.1643/CI-07-121
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ispartof Copeia, 2008-06, Vol.2008 (2), p.395-400
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1938-5110
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language eng
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source Jstor Complete Legacy; BioOne Complete
subjects Animal behavior
Catfish
Colors
Congeners
Cream
Drainage
Eggs
Holotypes
New species
Paratypes
Peduncle
Population density
Rivers
s
Siluriformes
Spine
Teeth
Wildlife conservation
title A New Species of Catfish of the Genus Gogo from Northeastern Madagascar (Siluriformes: Anchariidae)
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