Redescription of ‘Chasmocranus’ brachynema (Heptapteridae: Heptapterini)
Abstract The endangered species ‘Chasmocranus’ brachynema is redescribed and diagnosed among other Heptapterini by having the adipose fin extensively fused with the caudal fin, caudal fin shallowly bifurcate, and anal-fin insertion posterior to a vertical through the adipose-fin insertion, in additi...
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Sociedade Brasileira de Ictiologia
2024-02-01
|
| Series: | Neotropical Ichthyology |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252024000100209&tlng=en |
| _version_ | 1827340625108795392 |
|---|---|
| author | Gabriel de Carvalho Deprá Veronica Slobodian |
| author_facet | Gabriel de Carvalho Deprá Veronica Slobodian |
| author_sort | Gabriel de Carvalho Deprá |
| collection | DOAJ |
| description | Abstract The endangered species ‘Chasmocranus’ brachynema is redescribed and diagnosed among other Heptapterini by having the adipose fin extensively fused with the caudal fin, caudal fin shallowly bifurcate, and anal-fin insertion posterior to a vertical through the adipose-fin insertion, in addition to peculiarities of the head and mouth morphology. The species seems to be very rare, known only from five preserved specimens from the main channels of the Paraná and Mogi-Guaçu rivers, and from a tributary of the rio Ivaí, all in the Upper Paraná ecoregion. |
| first_indexed | 2024-03-07T21:24:09Z |
| format | Article |
| id | doaj.art-ab52ad68787d48ea9051c3f6f44b6b98 |
| institution | Directory Open Access Journal |
| issn | 1982-0224 |
| language | English |
| last_indexed | 2024-03-07T21:24:09Z |
| publishDate | 2024-02-01 |
| publisher | Sociedade Brasileira de Ictiologia |
| record_format | Article |
| series | Neotropical Ichthyology |
| spelling | doaj.art-ab52ad68787d48ea9051c3f6f44b6b982024-02-27T07:40:17ZengSociedade Brasileira de IctiologiaNeotropical Ichthyology1982-02242024-02-0122110.1590/1982-0224-2023-0091Redescription of ‘Chasmocranus’ brachynema (Heptapteridae: Heptapterini)Gabriel de Carvalho Depráhttps://orcid.org/0000-0002-5520-9763Veronica Slobodianhttps://orcid.org/0000-0002-4754-5871Abstract The endangered species ‘Chasmocranus’ brachynema is redescribed and diagnosed among other Heptapterini by having the adipose fin extensively fused with the caudal fin, caudal fin shallowly bifurcate, and anal-fin insertion posterior to a vertical through the adipose-fin insertion, in addition to peculiarities of the head and mouth morphology. The species seems to be very rare, known only from five preserved specimens from the main channels of the Paraná and Mogi-Guaçu rivers, and from a tributary of the rio Ivaí, all in the Upper Paraná ecoregion.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252024000100209&tlng=enEndangered speciesHeptapterus longicaudaRio IvaíRio Mogi-GuaçuTaxonomic review |
| spellingShingle | Gabriel de Carvalho Deprá Veronica Slobodian Redescription of ‘Chasmocranus’ brachynema (Heptapteridae: Heptapterini) Neotropical Ichthyology Endangered species Heptapterus longicauda Rio Ivaí Rio Mogi-Guaçu Taxonomic review |
| title | Redescription of ‘Chasmocranus’ brachynema (Heptapteridae: Heptapterini) |
| title_full | Redescription of ‘Chasmocranus’ brachynema (Heptapteridae: Heptapterini) |
| title_fullStr | Redescription of ‘Chasmocranus’ brachynema (Heptapteridae: Heptapterini) |
| title_full_unstemmed | Redescription of ‘Chasmocranus’ brachynema (Heptapteridae: Heptapterini) |
| title_short | Redescription of ‘Chasmocranus’ brachynema (Heptapteridae: Heptapterini) |
| title_sort | redescription of chasmocranus brachynema heptapteridae heptapterini |
| topic | Endangered species Heptapterus longicauda Rio Ivaí Rio Mogi-Guaçu Taxonomic review |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252024000100209&tlng=en |
| work_keys_str_mv | AT gabrieldecarvalhodepra redescriptionofchasmocranusbrachynemaheptapteridaeheptapterini AT veronicaslobodian redescriptionofchasmocranusbrachynemaheptapteridaeheptapterini |