Results 141 to 150 of about 842 (172)
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Four New Hypancistrus (Siluriformes: Loricariidae) from Amazonas, Venezuela
Copeia, 2007Hypancistrus contradens, H. debilittera, H. furunculus, and H. lunaorum are described based on specimens from the upper Rio Orinoco of southern Venezuela. Hypancistrus furunculus differs from other Hypancistrus based on color pattern: distinct dark oblique stripes ending at posterior insertion of dorsal fin and vertical bands in caudal fin (vs. oblique
Jonathan W. Armbruster +2 more
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Rheotaxis in Otocinclus sp. (Teleostei: Loricariidae)
Canadian Journal of Zoology, 1990Observations were conducted to determine rheotaxic behavior in Otocinclus sp. (Loricariidae). Rheotaxis in Otocinclus sp. (standard length 2.29–3.34 cm) occurs in three stages; (i) resting at zero water velocity; (ii) adhesion when water velocities are increased to about 10 cm s−1; and (iii) clamped position when slipping occurs (between 19 and 35 cm ...
A. J. Macdonnell, R. W. Blake
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Trans-Andean Ancistrus (Siluriformes: Loricariidae).
Zootaxa, 2015We review the trans-Andean species of Ancistrus from Panama, Colombia and Venezuela. Based on analyses of meristic, morphometric and pigmentation pattern data of preserved specimens, eight of sixteen species reported from this region are considered valid and two new species are described.
Donald C, Taphorn +3 more
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Hypostomus rhantos (Siluriformes: Loricariidae), a new species from southern Venezuela
Zootaxa, 2007Hypostomus rhantos is described for a uniquely pigmented species of loricariid catfish from the upper Río Orinoco of Amazonas, Venezuela. Hypostomus rhantos can be separated from all other Hypostomus except H. micromaculatus by having its head and dorsal and lateral surfaces of body densely covered in very small spots (greater than 15 spots on the ...
Armbruster, Jonathan W. +2 more
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Oxyropsis ephippia, a New Hypoptopomatine Catfish (Siluriformes: Loricariidae) from Guyana
Zootaxa, 2016Oxyropsis ephippia, a new species of loricariid catfish in the subfamily Hypoptopomatinae, is described from the Essequibo and Branco basins, Guyana. Based on the presence of a keel-like row of relatively enlarged odontodes on trunk median plates immediately above the lateral line canal, the new species is assigned to the genus Oxyropsis Eigenmann &
Adriana E, Aquino, Mark H Sabaj, Pérez
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New Species of Chaetostoma (Siluriformes: Loricariidae) from Central Peru
Copeia, 2006Abstract A new species of rubbernose armored catfish, collected by the Catherwood Foundation Peruvian Amazon Expedition from the upper Huallaga River (650 m elevation) in central Peru, is described herein. This new species differs from all other described Chaetostoma species in having a conspicuously banded dorsal fin and by the combination of the ...
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Identification Of Sailfin Catfishes (Teleostei: Loricariidae) In Southeastern Asia
2006Robins, Lawrence M. Page Robert H. (2006): Identification Of Sailfin Catfishes (Teleostei: Loricariidae) In Southeastern Asia.
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Systematics ofPseudotothyris(Loricariidae: Hypoptopomatinae)
Zoological Journal of the Linnean Society, 2014Fernanda O. Martins +2 more
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