New genus+4 new species of Heptapteridae

For the discussion of catfish systematics. Post here to draw our attention to new publications or to discuss existing works.
Post Reply
User avatar
Silurus
Posts: 12485
Joined: 31 Dec 2002, 11:35
I've donated: $12.00!
My articles: 55
My images: 903
My catfish: 1
My cats species list: 90 (i:0, k:0)
Spotted: 433
Location 1: Singapore
Location 2: Moderator Emeritus

New genus+4 new species of Heptapteridae

Post by Silurus »

DoNascimiento C, FA Villa-Navarro, JG Albornoz-Garzón, CC Conde-Saldaña, GSC Silva, A Méndez-López, FF Roxo, A Ortega-Lara & C Oliveira, 2025. An unexpectedly diverse new genus of catfishes (Siluriformes, Heptapteridae) endemic to the Magdalena River basin, Colombia. Zoological Journal of the Linnean Society 204: zlaf048.

Abstract

A new genus of heptapterid catfish, Magdalenichthys gen. nov., largely ignored for the past two decades is herein described. Comprehensive examination of specimens in Colombian ichthyological collections and additional samplings in the Magdalena basin were the base for an integral analysis using morphological characters, DNA barcode delimitation, and molecular phylogenetic analyses to assess monophyly and relationships of the new genus, and to delimit and diagnose four new species, Magdalenichthys lundbergi sp. nov., Magdalenichthys mompox sp. nov., Magdalenichthys poira sp. nov., and Magdalenichthys yariguies sp. nov., endemic to the Magdalena basin. The new genus is phylogenetically diagnosed. Maximum likelihood, Bayesian inference, and coalescent-based analyses with ultraconserved elements (UCEs) data, place the new genus as sister to Phenacorhamdia, within a clade also containing Cetopsorhamdia and Pariolius, consistent with the finding of two apomorphic characters shared by the new genus and Phenacorhamdia. The biogeographic pattern of the new genus (restricted to the Magdalena basin) is also discussed.
Image
User avatar
bekateen
Posts: 9743
Joined: 09 Sep 2014, 17:50
I've donated: $40.00!
My articles: 4
My images: 144
My cats species list: 148 (i:107, k:33)
My aquaria list: 37 (i:14)
My BLogs: 46 (i:157, p:2650)
My Wishlist: 36
Spotted: 186
Location 1: USA, California, Stockton
Location 2: USA, California, Stockton
Contact:

Re: New genus+4 new species of Heptapteridae

Post by bekateen »

Image
Find me on YouTube & Facebook: http://youtube.com/user/Bekateen1; https://www.facebook.com/Bekateen
Buying caves from https://plecocaves.com? Plecocaves sponsor Bekateen's Fishroom. Use coupon code bekateen for 15% off your order.
Also, for you Swifties: Https://youtu.be/ZUKdhXL3NCw
Post Reply

Return to “Taxonomy & Science News”