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Lujan, NK, M Arce & JW Armbruster, 2009. A new black Baryancistrus with blue sheen from the upper Orinoco (Siluriformes: Loricariidae). Copeia 2009: 50–56.

Abstract

Baryancistrus beggini, new species, is described from the upper Río Orinoco and lower portions of its tributaries, the Río Guaviare in Colombia and Río Ventuari in Venezuela. Baryancistrus beggini is unique within Hypostominae in having a uniformly dark black to brown base color with a blue sheen in life, and the first three to five plates of the midventral series strongly bent, forming a distinctive keel above the pectoral fins along each side of the body. It is further distinguished by having a naked abdomen, two to three symmetrical and ordered predorsal plate rows including the nuchal plate, and the last dorsal-fin ray adnate with adipose fin via a posterior membrane that extends beyond the preadipose plate up to half the length of the adipose-fin spine.

sounds neat, any pics?

I have problems accessing my electronic subscription to Copeia, but I believe the species in question is L239.

I was able to view my subscription and confirm that B. beggini is L239.

Cool. Figured it was that

That is interesting ...I always previously thought this might end up in its own genus.

Birger wrote:That is interesting ...I always previously thought this might end up in its own genus.

Who's to say it won't...

Jools

Birger wrote:That is interesting ...I always previously thought this might end up in its own genus.



Who's to say it won't...

Jools

Yes, very true.

Got a copy of the paper this morning, it ends up by saying, "The assignment of the new species to Baryancistrus must therefore be considered as tentative until such time as a more thorough comparative study of basal genera within the Panaque clade can be conducted and several currently undescribed species that might also belong within Baryancistrus can be examined."

For trivia buffs, I wonder if this is first mention of a specific l-number in a description?

Jools

Very interesting news!

Jools, is this paper available (or will be) to public?

husky_jim wrote:Very interesting news!

Jools, is this paper available (or will be) to public?

I don't know.

Jools

I really love it when a favourite fish gets a real name My LFS has a lot of them these days and I am considering to aquire a group. They are unically colorless, but have their charm nonetheless.

Jools, is this paper available (or will be) to public?

Here is the abstract and site where it can be purchased

http://www.asihcopeiaonline.org/perlser ... FCI-07-187

Jools wrote:

Birger wrote:That is interesting ...I always previously thought this might end up in its own genus.

Who's to say it won't...

Jools

Maybe both Baryancistrus demantoides and Baryancistrus beggini will end up in different genuses in the future.

Jools wrote:For trivia buffs, I wonder if this is first mention of a specific l-number in a description?

Jools

I think I remember an L-number being referred to in a description before, but I can't remember what species... I'm thinking a Peckoltia or one of the small Panaque species.