The species of Hemiancistrus (Siluriformes: Loricariidae) from Ecuador - L-Welse.com Forum

Karsten S. · 29.05.2017, 21:04

The species of Hemiancistrus (Siluriformes: Loricariidae) from Ecuador
Francisco R. Provenzano und Ramiro S. Barriga

Abstract
At the Fish Collection of the Instituto de Ciencias Biológicas, Escuela Politécnica Nacional, Quito, three species traditionally grouped in the genus Hemiancistrus were identified: H. annectens (Regan 1904), H. landoni Eigenmann 1916, and a new specie described here. The new species inhabits exclusively in the Esmeraldas River Basin, Pacific slope, northwestern Ecuador. It is easily recognized by the completely naked abdomen, with rounded, dark spots, and a different color pattern on the dorsal and caudal fins. A comparative analysis of bones related to the opercular mobility, shows important differences between H. annectens, H. landoni, and the new species, suggesting that H. annectens does not belong to the genus Hemiancistrus or the Ancistrini group. According to the characteristics observed in these bones, H. annectens shows greater similarity to those reported in species of the Hypostomini group, supporting its inclusion in this group, but placing it in the genus Hypostomus requires further analysis. On the other hand, the conditions observed on the bones of Hemiancistrus landoni and the new species suggest that both are inside of the Ancistrini group. The new species is placed in the genus Hemiancistrus tentatively, pending future analysis.

--

Das Paper sollte zugangsbeschränkt sein (bei mir hat der Download trotzdem funktioniert ?!): Link

Die neue Art heisst Hemiancistrus furtivus.

Gruß,
Karsten

Acanthicus · 29.05.2017, 23:09

Moin,

das ist eine gute Wochenendlektüre. Hemiancistrus ist ein spannendes Taxon momentan und dann eine westandine, neu beschriebene Art - spannender gehts doch kaum.

viele Grüße
Daniel

L80KR · 01.06.2017, 21:20

Zitat:

Zitat von Karsten S.

[b]The species of Hemiancistrus.....

Das Paper sollte zugangsbeschränkt sein (bei mir hat der Download trotzdem funktioniert ?!): Link

Die neue Art heisst Hemiancistrus furtivus.

Gruß,
Karsten

Hallo Karsten,

bei mir ist es zugangsbeschränkt ich habe da kein Glück mehr

29.05.2017, 21:04	#1
Karsten S. Moderator Registriert seit: 14.08.2005 Ort: Ludwigsburg Beiträge: 5.325	The species of Hemiancistrus (Siluriformes: Loricariidae) from Ecuador *The species of Hemiancistrus* (Siluriformes: Loricariidae) from Ecuador** Francisco R. Provenzano und Ramiro S. Barriga Abstract At the Fish Collection of the Instituto de Ciencias Biológicas, Escuela Politécnica Nacional, Quito, three species traditionally grouped in the genus Hemiancistrus were identified: H. annectens (Regan 1904), H. landoni Eigenmann 1916, and a new specie described here. The new species inhabits exclusively in the Esmeraldas River Basin, Pacific slope, northwestern Ecuador. It is easily recognized by the completely naked abdomen, with rounded, dark spots, and a different color pattern on the dorsal and caudal fins. A comparative analysis of bones related to the opercular mobility, shows important differences between H. annectens, H. landoni, and the new species, suggesting that H. annectens does not belong to the genus Hemiancistrus or the Ancistrini group. According to the characteristics observed in these bones, H. annectens shows greater similarity to those reported in species of the Hypostomini group, supporting its inclusion in this group, but placing it in the genus Hypostomus requires further analysis. On the other hand, the conditions observed on the bones of Hemiancistrus landoni and the new species suggest that both are inside of the Ancistrini group. The new species is placed in the genus Hemiancistrus tentatively, pending future analysis. -- Das Paper sollte zugangsbeschränkt sein (bei mir hat der Download trotzdem funktioniert ?!): Link Die neue Art heisst Hemiancistrus furtivus. Gruß, Karsten __________________ Parotocinclus britskii, P. haroldoi, Corydoras bicolor, C. boesemani, C. coppenamensis, C. guianensis, C. nanus, C. punctatus, Harttiella crassicauda, Paralithoxus gr. bovalli, P. plallidimaculatus, P. planquetti, P. surinamensis, Pseudancistrus kwinti,...

29.05.2017, 23:09	#2
Acanthicus Junger Hupfer Registriert seit: 13.12.2003 Beiträge: 5.957	Moin, das ist eine gute Wochenendlektüre. Hemiancistrus ist ein spannendes Taxon momentan und dann eine westandine, neu beschriebene Art - spannender gehts doch kaum. viele Grüße Daniel __________________ "L-Welse" : Angehörige der Familie Loricariidae, also auch die ohne L-Nummer(n)!

Ähnliche Themen
Thema	Autor	Forum	Antworten	Letzter Beitrag
A new species of Peckoltia from the Upper Orinoco (Siluriformes, Loricariidae)	Acanthicus	Erstbeschreibungen und Systematik	0	28.02.2016 00:05
A new species of Parotocinclus (Siluriformes: Loricariidae) from the upper Rio São Francisco, Brazil	Acanthicus	Erstbeschreibungen und Systematik	1	20.07.2012 23:50
Cordylancistrus santarosensis (Siluriformes: Loricariidae), a new species with unique snout deplatation from the Río Santa Rosa, Ecuador	Acanthicus	Erstbeschreibungen und Systematik	1	11.04.2012 07:08
A new species of Chaetostoma Tschudi (Siluriformes: Loricariidae) from Colombia with a definition of the C. anale species group	Acanthicus	Erstbeschreibungen und Systematik	0	01.12.2011 22:49
A new species of Hemiancistrus from the rio Araguaia basin, Goiás state, Brazil (Siluriformes: Loricariidae)	L-ko	Erstbeschreibungen und Systematik	0	30.09.2008 17:51