|
1
|
Guimarães KLA, Rosso JJ, González-Castro M, Souza MFB, Díaz de Astarloa JM, Rodrigues LRR. A new species of Hoplias malabaricus species complex (Characiformes: Erythrinidae) from the Crepori River, Amazon basin, Brazil. JOURNAL OF FISH BIOLOGY 2022; 100:425-443. [PMID: 34792799 DOI: 10.1111/jfb.14953] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Revised: 10/27/2021] [Accepted: 11/15/2021] [Indexed: 06/13/2023]
Abstract
A new species belonging to the Hoplias malabaricus complex from the Amazon basin, Brazil, is described. The new species is characterized by 15-16 predorsal scales, 37-39 lateral-line scales, 5 scales from dorsal fin to lateral line, 38-39 vertebrae, iii-iv, 7-8 anal-fin rays, ii-iv, 12-15 caudal-fin rays, last vertical series of scales on the base of caudal-fin rays forming a straight line, 6-7 dark bands in anal fin and no distinctive dark bands or blotches on flanks. The new species is also distinguished from other congeners of the H. malabaricus species-group by means of landmark-based morphometrics and DNA Barcoding (Cytochrome c Oxidase I gene). An identification key to species of the H. malabaricus species complex is provided.
Collapse
Affiliation(s)
- Karen L A Guimarães
- Programa de Pós-graduação em Biodiversidade e Biotecnologia (Rede BIONORTE - Polo Pará), Universidade Federal do Oeste do Pará, Instituto de Saúde Coletiva, Santarém, Brazil
- Laboratório de Genética e Biodiversidade, Universidade Federal do Oeste do Pará, Instituto de Ciências da Educação, Santarém, Brazil
| | - Juan J Rosso
- Grupo de Biotaxonomía Morfológica y Molecular de Peces, Instituto de Investigaciones Marinas y Costeras, Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Mar del Plata, Mar del Plata, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas, Buenos Aires, Argentina
| | - Mariano González-Castro
- Grupo de Biotaxonomía Morfológica y Molecular de Peces, Instituto de Investigaciones Marinas y Costeras, Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Mar del Plata, Mar del Plata, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas, Buenos Aires, Argentina
| | - Mendelsohn F B Souza
- Laboratório de Genética e Biodiversidade, Universidade Federal do Oeste do Pará, Instituto de Ciências da Educação, Santarém, Brazil
| | - Juan M Díaz de Astarloa
- Grupo de Biotaxonomía Morfológica y Molecular de Peces, Instituto de Investigaciones Marinas y Costeras, Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Mar del Plata, Mar del Plata, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas, Buenos Aires, Argentina
| | - Luís R R Rodrigues
- Programa de Pós-graduação em Biodiversidade e Biotecnologia (Rede BIONORTE - Polo Pará), Universidade Federal do Oeste do Pará, Instituto de Saúde Coletiva, Santarém, Brazil
- Laboratório de Genética e Biodiversidade, Universidade Federal do Oeste do Pará, Instituto de Ciências da Educação, Santarém, Brazil
| |
Collapse
|
|
2
|
Dagosta FCP, Seren TJ, Ferreira A, Marinho MMF. The emerald green tetra: a new restricted-range Hyphessobrycon (Characiformes: Characidae) from the upper rio Juruena, Chapada dos Parecis, Brazil. NEOTROPICAL ICHTHYOLOGY 2022. [DOI: 10.1590/1982-0224-2021-0119] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
ABSTRACT A new species of Hyphessobrycon is described from the rio Mutum, a tributary of the rio Juruena, rio Tapajós basin, Brazil. The new taxon can be distinguished from its congeners by the presence of a well-defined and relatively narrow dark midlateral stripe on body, extending from head to the middle caudal-fin rays, presence of a humeral blotch, distal profile of the anal fin falcate in males, 13-16 branched anal-fin rays (vs. 17-26), and 11 or 12 horizontal scale rows around caudal peduncle. The new species shows polymorphism regarding the presence of the adipose fin, and a discussion on this type of polymorphism across the family and its systematic implications is presented.
Collapse
|