A new species of Paralithoxus (Siluriformes: Loricariidae: Ancistrini) from the highlands of serra da mocidade, Roraima state, Brazilian Amazon
A new species of Paralithoxus is described from the Ajarani River, a small tributary of the Branco River basin, Roraima State, Brazilian Amazon. The genus Paralithoxus comprises species described from the Essequibo drainage in Guyana, Approuague and Maroni in French Guiana, Suriname River in Surinam...
| Autor principal: | Py-daniel, Lúcia Rapp |
|---|---|
| Outros Autores: | Oliveira, Andreza S., Bastos, Douglas A., Ito, Priscila Madoka, Zuanon, Jansen, Briglia-Ferreira, Sylvio Romério |
| Grau: | Artigo |
| Idioma: | English |
| Publicado em: |
Neotropical Ichthyology
2020
|
| Acesso em linha: |
https://repositorio.inpa.gov.br/handle/1/14585 |
| id |
oai:repositorio:1-14585 |
|---|---|
| recordtype |
dspace |
| spelling |
oai:repositorio:1-14585 A new species of Paralithoxus (Siluriformes: Loricariidae: Ancistrini) from the highlands of serra da mocidade, Roraima state, Brazilian Amazon Uma nova espécie de Paralithoxus é descrita do rio ajarani, um pequeno tributário da bacia do Rio Branco, Estado de Roraima, Amazônia Brasileira Py-daniel, Lúcia Rapp Oliveira, Andreza S. Bastos, Douglas A. Ito, Priscila Madoka Zuanon, Jansen Briglia-Ferreira, Sylvio Romério A new species of Paralithoxus is described from the Ajarani River, a small tributary of the Branco River basin, Roraima State, Brazilian Amazon. The genus Paralithoxus comprises species described from the Essequibo drainage in Guyana, Approuague and Maroni in French Guiana, Suriname River in Surinam, and more recently, from Jari and Amapá rivers, in Brazil. Despite occurring in a rock-bottomed fast-flowing stream as the other species of Paralithoxus, this is the first species of the genus collected at 900 m altitude, in the Serra da Mocidade highlands, an isolated and poorly accessible small mountain chain at the southern border of the Guiana Shield. The new species is distinguished from its congeners by having truncate teeth, color pattern with green spots on dark olive-brown background, alternating dark and light blotches on fins and by the pelvic fin being as long as or longer than the pectoral fin. Sex dimorphism of the species is described. Comments on morphology and osteology are provided and compared with congeners. © 2019 Sociedade Brasileira de Ictiologia. 2020-04-24T16:55:06Z 2020-04-24T16:55:06Z 2019 Artigo https://repositorio.inpa.gov.br/handle/1/14585 10.1590/1982-0224-20190041 en Volume 17, Número 4 Attribution-NonCommercial-NoDerivs 3.0 Brazil http://creativecommons.org/licenses/by-nc-nd/3.0/br/ application/pdf Neotropical Ichthyology |
| institution |
Instituto Nacional de Pesquisas da Amazônia - Repositório Institucional |
| collection |
INPA-RI |
| language |
English |
| description |
A new species of Paralithoxus is described from the Ajarani River, a small tributary of the Branco River basin, Roraima State, Brazilian Amazon. The genus Paralithoxus comprises species described from the Essequibo drainage in Guyana, Approuague and Maroni in French Guiana, Suriname River in Surinam, and more recently, from Jari and Amapá rivers, in Brazil. Despite occurring in a rock-bottomed fast-flowing stream as the other species of Paralithoxus, this is the first species of the genus collected at 900 m altitude, in the Serra da Mocidade highlands, an isolated and poorly accessible small mountain chain at the southern border of the Guiana Shield. The new species is distinguished from its congeners by having truncate teeth, color pattern with green spots on dark olive-brown background, alternating dark and light blotches on fins and by the pelvic fin being as long as or longer than the pectoral fin. Sex dimorphism of the species is described. Comments on morphology and osteology are provided and compared with congeners. © 2019 Sociedade Brasileira de Ictiologia. |
| format |
Artigo |
| author |
Py-daniel, Lúcia Rapp |
| spellingShingle |
Py-daniel, Lúcia Rapp A new species of Paralithoxus (Siluriformes: Loricariidae: Ancistrini) from the highlands of serra da mocidade, Roraima state, Brazilian Amazon |
| author2 |
Oliveira, Andreza S. Bastos, Douglas A. Ito, Priscila Madoka Zuanon, Jansen Briglia-Ferreira, Sylvio Romério |
| author2Str |
Oliveira, Andreza S. Bastos, Douglas A. Ito, Priscila Madoka Zuanon, Jansen Briglia-Ferreira, Sylvio Romério |
| title |
A new species of Paralithoxus (Siluriformes: Loricariidae: Ancistrini) from the highlands of serra da mocidade, Roraima state, Brazilian Amazon |
| title_short |
A new species of Paralithoxus (Siluriformes: Loricariidae: Ancistrini) from the highlands of serra da mocidade, Roraima state, Brazilian Amazon |
| title_full |
A new species of Paralithoxus (Siluriformes: Loricariidae: Ancistrini) from the highlands of serra da mocidade, Roraima state, Brazilian Amazon |
| title_fullStr |
A new species of Paralithoxus (Siluriformes: Loricariidae: Ancistrini) from the highlands of serra da mocidade, Roraima state, Brazilian Amazon |
| title_full_unstemmed |
A new species of Paralithoxus (Siluriformes: Loricariidae: Ancistrini) from the highlands of serra da mocidade, Roraima state, Brazilian Amazon |
| title_sort |
new species of paralithoxus (siluriformes: loricariidae: ancistrini) from the highlands of serra da mocidade, roraima state, brazilian amazon |
| publisher |
Neotropical Ichthyology |
| publishDate |
2020 |
| url |
https://repositorio.inpa.gov.br/handle/1/14585 |
| _version_ |
1787141912799477760 |
| score |
11.755432 |