New Retroculus described

New cichlid species and taxonomy
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DRE
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New Retroculus described

Post by DRE » Wed Jun 17, 2015 1:31 pm

From Rio Tocantins basin.

Retroculus acherontos

http://www.mapress.com/zootaxa/2015/f/z03973p380f.pdf
Abstract
Retroculus acherontos is described from the Rio Tocantins basin, Brazil. It is distinguished from all congeners by the presence
of a nuchal hump in large specimens, an irregular black blotch located on the middle of the anterior soft dorsal-fin
rays, fewer pectoral-fin rays (15–16), a deeper body, a convex ventral profile, a more transversely convex ventral surface
of the body, and by chest scales similar in size to the scales on the side. An expanded diagnosis for the genus Retroculus
is provided.
Discovery consists of looking at the same thing as everyone else and thinking something different

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DRE
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Re: New Retroculus described

Post by DRE » Wed Jun 17, 2015 1:31 pm

Anyone with full description?
Discovery consists of looking at the same thing as everyone else and thinking something different

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Juan Artigas
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Re: New Retroculus described

Post by Juan Artigas » Thu Jun 25, 2015 9:09 am

This is included in the site news, I just thought it would probably be useful to post it here as well:

New species of Retroculus described
By Juan Miguel Artigas Azas

A new species of Retroculus from the high Rio Tocantins in the Brazilian Amazon basin has been described in the journal Zootaxa by Maria Isabel Landin, C.R. Moreira & C.A. Figueiredo from the Universities of Sao Paolo and Rio De Janeiro respectively. The new species, R. acherontos, had been originally reported by Oliver Lucanus in the April 2011 issue of Cichlid News Magazine. This species is distinctively different from the three other species in the genus from which it differs by a black blotch in the median portion of the first to seventh dorsal-fin soft rays. It also develops a nuchal hump in specimens of both sexes longer than 150 mm. It also differs in other less obvious characters. The specific name chosen for the new species, acherontos refers to the type locality in Rio de las Almas (souls river) in a cryptic way; Acheron in the Greek mythology is the river that flows to Hades, land of the souls. The new species has a known small distribution around Serra da Mesa Hydroeletric power dam, and it is considered as endangered.

Landim, María Isabel & C.R. Moreira & C.A. Figueiredo. 2015. "Retroculus acherontos, a new species of cichlid fish (Teleostei) from the Rio Tocantins basin". Zootaxa. v. 3973(n. 2), pp. 369-380 (crc06779)

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Re: New Retroculus described

Post by Mark Smith » Wed Jul 08, 2015 1:08 pm

Anyone have a copy of this new paper to share? Many thanks in advance.

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DRE
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Re: New Retroculus described

Post by DRE » Wed Jul 08, 2015 2:28 pm

I have it. I can mail it to you. Pm mailadress.
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