Espinasa, Rivas-Manzana and Espinosa Perez (2001) describe a stygobitic, hypogean population from Mexico and the following details relate only to the hypogean animals.
“Type locality” of the hypogean animals: Gruta de las Granadas, north-east of Taxco, Guerrero, southern México (18o34’30”N, 99o33’7”W). The stream flowing from the cave is a tributary of the Amacuzac River. Known also from Resumidero La Joya in the same area (Espinasa 2018).
The collection site is a cave passage 180m long to a sump pool. The cave is a resurgence and water flows out of it all year round. Within the cave there is a mixed population of the stygomorphic, presumably stygobitic, animals and ordinary surface animals. Only about 10% of the population are stygomorphic. This suggests that their true habitat is undiscovered and lies further into the cave.
From the few data available it appears that the stygomorphic animal is a separate taxon from the epigean animals and that it is currently hybridising at the collection site. This situation is analogous to that of Astyanax jordani in La Cueva Chica (Breder 1942) and perhaps Poecilia mexicana and Rhamdia quelen urichi at their only known sites. Should this turn out to be the case a new name would be appropriate to differentiate the taxon.
The hypogean population of this species is currently known from only two sites and is therefore VU D2 at least.
- Zeitlin, S. M. and McDevitt, D. S. (1973)
- Espinasa, L (1986)
- Espinasa, L., Rivas-Manzano, P. and Perez, H.E. (2001)
- Mirande, J.M. (2010)
- Espinasa, L (2011)
- Esquivel-Bobadilla, S (2011)
- Pazza, R (2013)
- Silva, D. M. Z. A., Utsunomia, R., Pansonato-Alves, J.C., Oliveira, C. and Foresti, F. (2015)
- Schmitter-Soto, JJ (2016)
- Schmitter-Soto, JJ (2017)
- Pazza, R., Dergam, J.A. and Kavalco, K.F. (2018)
- Espinasa, L. (2018)
- Mirande, J.M. (2018)
- Borowsky, R., Luk, A., He, X.J. and Kim, R.S. (2018)
- Devitsina, G.V. and Golovkina, T.V. (2018)
- Elliott, W.R. (2018)
|Zeitlin, S. M. and McDevitt, D. S.||Journal Article||1973||Flourescent antibody study of the developing lens of the blind cave fish|
|Espinasa, L||Journal Article||1986||Exploraciones biospeleologicas en Guerrero|
|Espinasa, L., Rivas-Manzano, P. and Perez, H.E.||Journal Article||2001||A new blind cave fish population of genus Astyanax: Geography, morphology and behaviour|
|Mirande, J.M.||Journal Article||2010||Phylogeny of the family Characidae (Teleostei: Characiformes): from characters to taxonomy|
|Espinasa, L||Journal Article||2011||Promoting undergraduate research in large classrooms: Guerrero cave Astyanax - Old or young colonisation?|
|Esquivel-Bobadilla, S||Thesis||2011||Análisis genético de Astyanax mexicanus (Characidae, Teleostei, Pisces) de la vertiente atlántica de México usando microsatélites.|
|Pazza, R||Journal Article||2013||Molecular systematics of the genus Astyanax - Starter edition|
|Silva, D. M. Z. A., Utsunomia, R., Pansonato-Alves, J.C., Oliveira, C. and Foresti, F.||Journal Article||2015||Chromosomal Mapping of Repetitive DNA Sequences in Five Species of Astyanax (Characiformes, Characidae) Reveals Independent Location of U1 and U2 snRNA Sites and Association of U1 snRNA and 5S rDNA|
|Schmitter-Soto, JJ||Journal Article||2016||A phylogeny of Astyanax (Characiformes: Characidae) in Central and North America|
|Schmitter-Soto, JJ||Journal Article||2017||A revision of Astyanax (Characiformes: Characidae) in Central and North America, with the description of nine new species|
|Pazza, R., Dergam, J.A. and Kavalco, K.F.||Journal Article||2018||Trends in karyotype evolution in Astyanax (Teleostei, Characiformes, Characidae): Insights from molecular data.|
|Espinasa, L.||Book Section||2018||The Guerrero fish population: Astyanax aeneus as a comparative cavefish model|
|Mirande, J.M.||Journal Article||2018||Morphology, molecules and the phylogeny of Characidae (Teleostei, Characiformes)|
|Borowsky, R., Luk, A., He, X.J. and Kim, R.S.||Journal Article||2018||Unique sperm haplotypes are associated with phenotypically different sperm subpopulations in Astyanax fish|
|Devitsina, G.V. and Golovkina, T.V.||Journal Article||2018||Structural Organization of the Taste Apparatus in Characins (Characidae, Teleostei|
|Elliott, W.R.||Book||2018||The Astyanax Caves of Mexico: Cavefishes of San Luís Potosí, Tamaulipas, and Guerrero|