Paragenidens is a monotypic genus of sea catfishes containing just one species, Paragenidens grandoculis. This species was formerly classified under the genus Potamarius until a 2019 study found it to be wholly distinct from it. It is endemic to Brazil, where it is known from the Doce and the Paraíba do Sul rivers and their mouths. It is highly endangered and was not seen for over 50 years until it was rediscovered during fieldwork for the 2019 study that reclassified it. It is now only known from Lagoa Nova in the municipality of Linhares in Espirito Santo state, having been extirpated from its only other recent locality, Juparanã Lagoon in Linhares.[1][2]
| Paragenidens | |
|---|---|
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Siluriformes |
| Family: | Ariidae |
| Subfamily: | Ariinae |
| Genus: | Paragenidens Marceniuk et al., 2019 |
| Species: | P. grandoculis
|
| Binomial name | |
| Paragenidens grandoculis (Steindachner, 1877)
| |
References
edit- ^ Oliveira, Claudio; Gasparini, João Luiz Rosetti; Lima, Flávio César Thadeo; Ingenito, Leonardo Ferreira Da Silva; Marceniuk, Alexandre Pires (2019-04-18). "Systematics, biogeography and conservation of Paragenidens grandoculis n. gen. and n. comb. (Siluriformes; Ariidae), a critically endangered species from southeastern Brazil". Zootaxa. 4586 (3): 425–444. doi:10.11646/zootaxa.4586.3.2. ISSN 1175-5334. PMID 31716115.
- ^ "Potamarius grandoculis summary page". FishBase. Retrieved 2019-04-25.