Two new species of the Hypostomus cochliodon group

[Karsten S.]

Two new species of the Hypostomus cochliodon group (Siluriformes: Loricariidae) from the rio Paraguay basin, with a redescription of Hypostomus cochliodon Kner, 1854

Luiz F. C. Tencatt, Cláudio H. Zawadzki, Otávio Froehlich

Abstract

Hypostomus cochliodon group is a monophyletic clade of 20 valid species of Neotropical armored catfishes that is widely distributed throughout South America. Recently, specimens identified as H. cochliodon from the type locality and nearby localities were examined, and found to include representatives of more than one species. A redescription of H. cochliodon is provided, with a description of two new species, one from the Bodoquena Plateau and another from several localities of the rio Paraguay basin. A lectotype for H. cochliodon is designated herein, since the previous designation is invalid. Hypostomus cochliodon is diagnosed from all other species of the H. cochliodon group by having the opercle almost completely covered laterally by thick layer of skin, the absence of buccal papilla, weak to moderately developed keels on the lateral plates of the body and by the color pattern of its body and fins. Hypostomus basilisko, new species, is distinguished from the remaining species of the H. cochliodon group by the absence of spots on the body, highly developed keels and spoon-shaped teeth. Hypostomus khimaera, new species, is distinguished from the other species of the H. cochliodon group by having a dark tan stripe along the midline of the flank, black spots on the body and/or fins and teeth with mesial cusp and not spoon-shaped.

Link zum Paper

Da hat der Red Bruno offenbar ein wiss. Namen bekommen: Hypostomus basilisko.
Kommt jemanden die andere Art Hypostomus khimaera bekannt vor ?!

Gruß,
Karsten

[Borbi]

Moin,

Kommt jemanden die andere Art Hypostomus khimaera bekannt vor ?!

Ich hab jetzt ne Nacht drüber geschlafen und finde immer noch, dass der sehr wie L310 aussieht (der bisher von einigen zu H. cochliodon gestellt worden ist)..

Gruß,
Sandor

[MarkusK]

Hi,

hab mit Luiz geschrieben und er meinte, dass das Tier auf Hans´ Bild schon den Hypostomus khimaera ähnelt. Stellte uns aber gleich ein weiteres Bild zur Verfügung: