Quelle: Neotrop. ichthyol. vol.15 no.2 Maringá 2017 Epub Apr 20, 2ABSTRACT
Recent taxonomic studies indicated the presence of several undescribed species in the rio Parnaíba basin. Among those, a new species of Parotocinclus endemic of this drainage is herein described. It differs from most of its congeners, including the sympatric P. haroldoi and P. cearensis, by a vestigial or rudimentary adipose fin (vs. conspicuous adipose fin). This character is also present in P. bidentatus and P. muriaensis (both from the rio Paraíba do Sul basin, southeastern Brazil), P. spilurus (rio Jaguaribe basin, northeastern Brazil), P. seridoensis (rio Piranhas-Açu basin, northeastern Brazil), P. halbothi (rios Trombetas and Marowijne basins, northern Brazil and Suriname) and P. dani (from rio Tapajós in Mato Grosso State, Brazil). The new species differs from these latter species mainly by the abdomen extensively covered by broad dermal plates. It also differs from P. haroldoi and P. cearensis by light bands between the snout tip and the nostrils.
A new species of armored catfish Parotocinclus (Siluriformes: Loricariidae) from the rio Parnaíba basin, northeastern, Brazil
#1
Publicado el 21 April 2017 - 09:17 PM
- Atreyu le gusta esta
#2
Publicado el 21 April 2017 - 09:26 PM
nuevo en la base de datos: Parotocinclus cabessadecuia
Un diferenciador clave del género Parotocinclus contra otros géneros de ésta subfamilia (Hypoptopomatinae) es la presencia de la aleta adiposa.
Detrás de Parotocinclus bidentatus, Parotocinclus dani, Parotocinclus habolthi, Parotocinclus muriaensis, Parotocinclus seridoensis y Parotocinclus spilurus es Parotocinclus cabessadecuia el séptimo Parotocinclus que no tiene una aleta adiposa o tiene solo una aleta adiposa rudimentaria.
Saludos
Elko
Editado por L-ko, 21 April 2017 - 09:27 PM.
- Atreyu y ehecatl como este
#3
Publicado el 22 April 2017 - 11:07 AM
Gracias por darnos a conocer las nuevas especies.
Calculadora genética. Pterophyllum scalare
Calculadora sexado. Pterophyllum scalare
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