Xenotoca lyonsi, the Tamazula redtail splitfin, is a bony fish species in the goodeid family. Until 2016 it was considered to be a variant of the redtail goodeid, X. eiseni. A 2016 study by Omar Dominguez-Dominguez, et al. split the redtail goodeid into three separate species: X. eiseni, X. doadrioi and X. lyonsi.[2]
| Xenotoca lyonsi | |
|---|---|
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Cyprinodontiformes |
| Family: | Goodeidae |
| Genus: | Xenotoca |
| Species: | X. lyonsi
|
| Binomial name | |
| Xenotoca lyonsi Domínguez-Domínguez, Bernal-Zuñiga & Piller, 2016
| |
The IUCN lists Xenotaca lyonsi as critically endangered.[1]
Xenotoca lyonsi is endemic to the Coahuayana River drainage in Jalisco, Mexico.[3]
Xenotoca lyonsi reaches a standard length of 5 centimetres (2.0 in).[4] Males are more colorful than females, with red caudal fin and caudal peduncle, and blue area in front of the red.[4] Females are brownish or brownish grey, and sometimes have a horizontal dark band across the middle of the body.[4]
References
edit- ^ a b Koeck, M. (2019). "Tamazula Redtail Splitfin". IUCN Red List of Threatened Species. 2019: e.T130988955A130988970. Retrieved 2023-06-12.
- ^ Domínguez-Domínguez, O.; Bernal-Zuñiga, D.M.; Piller, K.R. (2016). "Two new species of the genus Xenotoca Hubbs and Turner, 1939 (Teleostei, Goodeidae) from central-western Mexico". Zootaxa. 4189 (1): 81–98. doi:10.11646/zootaxa.4189.1.3. PMID 27988757.
- ^ "Xenotoca lyonsi". Fish Base. Retrieved 2023-06-12.
- ^ a b c ""Xenotoca" lyonsi". Goodeid Working Group. Retrieved 2023-06-12.