Description of a new species of the Neotropical cichlid genus Gymnogeophagus Miranda Ribeiro, 1918 (Teleostei: Cichliformes) from the Middle Paraná basin, Misiones, Argentina

Autor: Jorge Rafael Casciotta, Felipe Alonso, Oldřich Říčan, Mauricio Fabián Benitez, Gastón Aguilera, Adriana Edith Almirón, Wilson S. Serra, Guillermo Enrique Teran, Juan Marcos Mirande, Ignacio Garcia
Jazyk: angličtina
Rok vydání: 2019
Předmět:
0106 biological sciences
0301 basic medicine
Male
New species report
Teeth
Species Delimitation
Light
Biología
Speciation
01 natural sciences
purl.org/becyt/ford/1 [https]
Genus
Medicine and Health Sciences
Zoología
PHYLOGENETIC ANALYSIS
Animal Anatomy
Hyaline
Data Management
Teleostei
Tails
Multidisciplinary
biology
Physics
Electromagnetic Radiation
Paraná river
New Species Reports
Phylogenetic Analysis
Zoología
Ornitología
Entomología
Etología
Anatomy
Cichlids
Phylogenetics
Artificial Light
Physical Sciences
PARANA RIVER
Medicine
NEW SPECIES REPORT
Female
Peduncle (botany)
CIENCIAS NATURALES Y EXACTAS
Research Article
Gymnogeophagus
Computer and Information Sciences
Evolutionary Processes
Science
MOUTHBROODING REPRODUCTIVE
010603 evolutionary biology
Mouthbrooding reproductive
Ciencias Biológicas
03 medical and health sciences
Cichlid
Ocular System
Animals
Evolutionary Systematics
purl.org/becyt/ford/1.6 [https]
Taxonomy
Evolutionary Biology
Fish fin
Biology and Life Sciences
biology.organism_classification
Dorsal fin
030104 developmental biology
Jaw
Uruguay
Eyes
Head
Digestive System
Zoology
Zdroj: PLoS ONE, Vol 14, Iss 2, p e0210166 (2019)
PLoS ONE
CONICET Digital (CONICET)
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET
SEDICI (UNLP)
Universidad Nacional de La Plata
instacron:UNLP
ISSN: 1932-6203
Popis: Gymnogeophagus jaryi, new species, is described from Southern tributaries of the Middle Paraná basin in Misiones. It can be distinguished from all other members of the genus, except from G. australis and G. caaguazuensis, by the presence of a hyaline to grey anterior portion of the dorsal fin. Gymnogeophagus jaryi differs from G. caaguazuensis by a longer caudal peduncle, caudal fin not lyrate, central portion of scales on dorsal portion of trunk light iridescent blue and by white spots in soft portion of dorsal fin in adult males, and from G. australis by the light iridescent blue coloration of central portion of scales on the dorsal portion of trunk and tail, and by the lack of scales on the soft portion of the dorsal fin. Additionally, it can be diagnosed by the following unique combination of characters: 10-11 dorsal-fin branched rays, 27-30 E1 scales, absence of lips thickening, and, in males, by the possession of a hump in adults, caudal fin not lyrate, presence of large white spots forming transversal stripes distally and in anterior area of the dorsal fin's soft portion, central area of scales on the dorsal portion of the trunk light iridescent blue, lack of scales on the base of the dorsal fin's soft portion, absence of a conspicuous and oblique dark band from the eye to the anterior border of the head, anterior portion of dorsal fin hyaline to grey, scales of the midlateral spot each bearing a semicircular light blue blotch, head hump starting at the horizontal through the eyes, concave anterior profile in lateral view, base of unpaired fins yellow, and whitish hyaline spots on caudal fin. The new species, based on mtDNA phylogeny, is the sister species of G. caaguazuensis from the Paraguay basin and is closely related to G. australis.
Instituto de Limnología "Dr. Raúl A. Ringuelet"
Databáze: OpenAIRE
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