2 neue Pseudancistrus
 

Hallo!

Es gibt zwei neue Pseudancistrus aus Venezuela, made bei Armbruster und Co:

Two new species of Pseudancistrus from southern Venezuela (Siluriformes: Loricariidae)

Nathan K. Lujan*, Jonathan W. Armbruster* and Mark H. Sabaj**

Two new species of Pseudancistrus are described from the upper RÃ*o Orinoco and RÃ*o Negro in Southern Venezuela.
Pseudancistrus pectegenitor was collected in the main channel of the RÃ*o Orinoco near the mouth of the RÃ*o Ventuari and in the middle reaches of the RÃ*o Casiquiare. It differs from congeners by having 10-11 dorsal-fin
rays (vs. seven), adpressed cheek odontodes reaching to three or more plates beyond the opercle in adults (vs. maximally to rear edge of the opercle), plates of ventral row of caudal peduncle with dorsal laminae strongly
concave, accentuating the medial keel of the ventral plate row (shared with P. sidereus), and large oral papillae internal to the dentary tooth cup (shared with P. coquenani, P. orinoco, and P. yekuana).
Pseudancistrus yekuana is known only from the type locality, immediately upstream of Salto Tencua in the upper RÃ*o Ventuari. It differs from congeners by having large oral papillae internal to the dentary tooth cup (shared with P. coquenani, P. orinoco,
and P. pectegenitor), lower lip reaching to middle of pectoral girdle (vs. to anterior edge of pectoral girdle), pectoral-fin spine maximally reaching posterior base of the pelvic-fin spine when adpressed ventral to the pelvic
fin (vs. at least halfway through pelvic-fin insertion) and by several morphometric differences.

https://www.pfeil-verlag.de/04biol/d9902d18.php

Grüße,
Christian

Hallo Christian

und deine Meinung dazu. weil ich 08/15 User Blick nicht durch
lg Udo

Hallo Udo!

Ich kenne bisher leider auch nur den verlinkten Abstract und nicht den ganzen Artikel.
Von daher möchte ich mich da vorerst nicht weiter zu äußern... :)

Grüße,
Christian

Hi,

hier hab ich noch etwas darüber gefunden:

https://www.practicalfishkeeping.co.....php?news=1332

Pseudancistrus pectegenitor und P. yekuana
 

Hi,
in der neuen "Aquarium live" ist, glaube ich ein kleiner Bericht.
Gruß Thomas

Hallo

Der Wels ( siehe den Link / Pictures of P. pectigenator by Nathan Luhan and Mark Sabaj )sieht aus wie eine " Kampmaschine" echt Klasse !
:y_smile_g
gruss
Frank

Hi.

Stimmt. Aquarium live Nr. 5 2007 auf der Seite 56.

Hi,

kleine Ergänzung:

https://silurus.acnatsci.org/ACSI/pa...ujan_et_al.pdf

Viele Grüße
Elko