A new species of Amazonian bluntnose knifefish Brachyhypopomus (Gymnotiformes: Hypopomidae), with comments on its phylogenetic position. Issue 4 (19th May 2021)
- Record Type:
- Journal Article
- Title:
- A new species of Amazonian bluntnose knifefish Brachyhypopomus (Gymnotiformes: Hypopomidae), with comments on its phylogenetic position. Issue 4 (19th May 2021)
- Main Title:
- A new species of Amazonian bluntnose knifefish Brachyhypopomus (Gymnotiformes: Hypopomidae), with comments on its phylogenetic position
- Authors:
- Dutra, Guilherme Moreira
Peixoto, Luiz Antônio Wanderley
Ochoa, Luz Eneida
Ohara, Willian Massaharu
Santana, Carlos David de
Menezes, Naércio Aquino
Datovo, Aléssio - Abstract:
- Abstract : A new species of the bluntnose knifefish genus Brachyhypopomus Mago-Leccia is described from headwaters of upper Rio Juruena, and upper Rio Machado, Amazon basin, Brazil. The new species differs from all congeners by the absence of a small independent ossification of the Weberian complex located posterodorsally to the supraoccipital. It can be additionally distinguished from its congeners by a set of characters in combination that includes: absence of accessory electric organ over the opercular region, absence of a prominent pale uninterrupted middorsal stripe on body, presence of scales on the entire middorsal region of body, dorsal rami of the recurrent branch of anterior lateral-line nerve not externally visible, presence of a dark suborbital stripe, and possession of 8–10 scale rows above the lateral line. The phylogenetic position of the new species is inferred by its inclusion in a total-evidence matrix with data from morphology, mitochondrial genes, and nuclear genes of all species. The new species is apparently restricted to upland tributaries of the Chapada dos Parecis, more than 500 m high. Comments on the occurrence of fish species in multiple independent basins at Chapada dos Parecis are also provided. http://www.zoobank.org/urn:lsid:zoobank.org:pub:620C58EB-4DA7-4322-9E2D-ACF4152DB0C7
- Is Part Of:
- Systematics and biodiversity. Volume 19:Issue 4(2021)
- Journal:
- Systematics and biodiversity
- Issue:
- Volume 19:Issue 4(2021)
- Issue Display:
- Volume 19, Issue 4 (2021)
- Year:
- 2021
- Volume:
- 19
- Issue:
- 4
- Issue Sort Value:
- 2021-0019-0004-0000
- Page Start:
- 333
- Page End:
- 345
- Publication Date:
- 2021-05-19
- Subjects:
- Bayesian inference -- biodiversity -- electric fishes -- maximum parsimony -- neotropical fauna -- taxonomy
Biodiversity -- Periodicals
Biology -- Classification -- Periodicals
Natural history -- Periodicals
Biodiversity
Biology
Classification
Periodicals
578 - Journal URLs:
- http://journals.cambridge.org/action/displayJournal?jid=SYS ↗
http://journals.cambridge.org/JID_SYS ↗
http://www.tandfonline.com/toc/tsab20/current ↗
http://www.tandfonline.com/ ↗ - DOI:
- 10.1080/14772000.2021.1877844 ↗
- Languages:
- English
- ISSNs:
- 1478-0933
- Deposit Type:
- Legaldeposit
- View Content:
- Available online (eLD content is only available in our Reading Rooms) ↗
- Physical Locations:
- British Library DSC - BLDSS-3PM
British Library STI - ELD Digital store - Ingest File:
- 16578.xml