Hypostomus chrysostiktos is a Pterygoplichthys? Are these fighting words?

For the discussion of catfish systematics. Post here to draw our attention to new publications or to discuss existing works.
Post Reply
User avatar
bekateen
Posts: 6149
Joined: Tue Sep 09, 2014 5:50 pm
I've donated: $40.00!
My articles: 3
My images: 61
My cats species list: 104 (i:41, k:46)
My aquaria list: 30 (i:14)
My BLogs: 35 (i:116, p:1778)
My Wishlist: 32
Spotted: 127
Location 1: USA, California, Stockton
Location 2: USA, California, Stockton
Contact:

Hypostomus chrysostiktos is a Pterygoplichthys? Are these fighting words?

Post by bekateen »

Anjos, M. S., Bitencourt, J. A., Nunes, L. A., Sarmento-Soares, L. M., Carvalho, D. C., Armbruster, J. W., & Affonso, P. R. (2019). Species delimitation based on integrative approach suggests reallocation of genus in Hypostomini catfish (Siluriformes, Loricariidae). Hydrobiologia, 1-16.

https://doi.org/10.1007/s10750-019-04121-z
https://link.springer.com/article/10.10 ... 19-04121-z
Integrative approaches are particularly useful to resolve taxonomic uncertainties in species-rich groups that have undergone explosive radiation, such as Hypostomini (suckermouth armored catfishes). This tribe encompasses the genera Hypostomus and Pterygoplichthys, but the actual number of species in each genus and the intergeneric interrelationships are confusing or unknown for some ecoregions in the Neotropics. Here, we analyzed three endemic species Hypostomus chrysostiktos, H. jaguar and H. unae from Northeastern Mata Atlântica in northeastern Brazil based on meristic characters, geometric morphometrics, chromosomal data, DNA barcode and species delimitation algorithms. The current taxonomic status of these catfishes is challenged. While H. unae and H. jaguar revealed a close evolutionary relationship similar to those observed within Hypostomus from other basins, H. chrysostiktos was herein more closely related to Pterygoplichthys, being invariably recovered as a highly distinctive taxonomic unit than to Hypostomus. Therefore, we recommend the reallocation of H. chrysostiktos as Pterygoplichthys chrysostiktos and a thorough systematic review of Pterygoplichthys, particularly focusing on putative convergence traits in relation to Hypostomus.
CLOGs for other species mentioned:
Hypostomus unae and Hypostomus jaguar
Image
http://youtube.com/user/Bekateen1
Would you like to buy my fish? Click HERE for prices.
Buying caves from https://plecocaves.com? Plecocaves is now sponsoring Bekateen's Fishroom. Use coupon code "bekateen" (no quotes) for 15% off your order.

Bas Pels
Posts: 2740
Joined: Thu Dec 21, 2006 8:35 pm
My images: 1
My cats species list: 27 (i:0, k:1)
Spotted: 4
Location 1: the Netherlands
Location 2: Nijmegen the Netherlands
Interests: Central American and Uruguayan fishes

Re: Hypostomus chrysostiktos is a Pterygoplichthys? Are these fighting words?

Post by Bas Pels »

Apparently we can no longer count rays in the dorsal to say Pterogoblichthys or Hypostomus. What a pity.
cats have whiskers

User avatar
Jools
Expert
Posts: 14713
Joined: Mon Dec 30, 2002 3:25 pm
My articles: 189
My images: 904
My catfish: 244
My cats species list: 89 (i:0, k:7)
My aquaria list: 2 (i:2)
My BLogs: 7 (i:5, p:194)
My Wishlist: 17
Spotted: 943
Location 1: M8
Location 2: Scotland
Interests: All things aquatic, Sci-Fi, photography and travel. Oh, and beer.
Contact:

Re: Hypostomus chrysostiktos is a Pterygoplichthys? Are these fighting words?

Post by Jools »

Bas Pels wrote:
Sun Nov 24, 2019 9:26 am
Apparently we can no longer count rays in the dorsal to say Pterogoblichthys or Hypostomus. What a pity.
Pragmatically you can, for how long is another matter. But, everything with > 12 rays is a Pterygoplichthys, which is, almost always, the question posed.

More broadly, what this points to, is the beginning of the carving up of Hypostomus into more manageable chunks - that's a good thing. Assuming it gathers traction, despite the long list of distinguished co-authors, there's still a way to go.

Jools

User avatar
The.Dark.One
Posts: 1483
Joined: Mon Feb 03, 2003 8:24 pm
I've donated: $26.00!
My articles: 1
My images: 21
My cats species list: 41 (i:0, k:0)
Spotted: 16
Location 1: Castleford, West Yorkshire, England
Location 2: Castleford

Re: Hypostomus chrysostiktos is a Pterygoplichthys? Are these fighting words?

Post by The.Dark.One »

chrysostiktos has 10-11 rays anyway, so you can still use the rays in most 'Hypostomus'

User avatar
bekateen
Posts: 6149
Joined: Tue Sep 09, 2014 5:50 pm
I've donated: $40.00!
My articles: 3
My images: 61
My cats species list: 104 (i:41, k:46)
My aquaria list: 30 (i:14)
My BLogs: 35 (i:116, p:1778)
My Wishlist: 32
Spotted: 127
Location 1: USA, California, Stockton
Location 2: USA, California, Stockton
Contact:

Re: Hypostomus chrysostiktos is a Pterygoplichthys? Are these fighting words?

Post by bekateen »

Updated citation:

Anjos, M. S., Bitencourt, J. A., Nunes, L. A., Sarmento-Soares, L. M., Carvalho, D. C., Armbruster, J. W., & Affonso, P. R. (2020). Species delimitation based on integrative approach suggests reallocation of genus in Hypostomini catfish (Siluriformes, Loricariidae). Hydrobiologia, 847: 563-578. https://doi.org/10.1007/s10750-019-04121-z

PDF: http://www.nossacasa.net/nossosriachos/ ... tos%20.pdf
Image
http://youtube.com/user/Bekateen1
Would you like to buy my fish? Click HERE for prices.
Buying caves from https://plecocaves.com? Plecocaves is now sponsoring Bekateen's Fishroom. Use coupon code "bekateen" (no quotes) for 15% off your order.

Post Reply