Endangered
Rio Concepcion Topminnow
Poeciliopsis jackschultzi
Rio Concepcion Topminnow is a livebearer in the family Poeciliidae (order Cyprinodontiformes) — Poeciliopsis jackschultzi, recorded as Endangered and tied to Mexico.
The livebearer
This species was first described in 2019.
Livebearers such as gambusias and mollies give birth to free-swimming young. Many are small surface fishes of still water.
Killifish, livebearers, and splitfins — small-bodied freshwater fishes, many of them from a single lake, spring, or seasonal pool.
Range and habitat
Rio Concepcion Topminnow is recorded from Mexico.
GBIF currently lists 6 occurrence points. Those points follow where people logged the taxon — museum drawers and surveys included — not a closed range boundary.
Pins are Wikidata “endemic to” fields. Orange dots, when present, are GBIF occurrence tiles — survey bias included.
Breeding
Livebearers drop free-swimming young. Many species occupy springs, lakes, or ditches with little room to retreat.
Small desert or forest fishes in this order live in water that can vanish. The egg bank, if there is one, is the only reserve.
In crisis
Rio Concepcion Topminnow is Endangered on this catalog because that is the IUCN category stored on Wikidata. Confirm the official criteria and any later count on iucnredlist.org.
Sources
Written for this catalog from the Vietnamese Wikipedia article on Poeciliopsis jackschultzi, translated and retold in English, plus Wikidata item Q107361083 and GBIF occurrence geography. Family and order context is original field-guide writing about the group. Wikipedia text is CC BY-SA. Not an IUCN assessment. Confirm status and range on iucnredlist.org.



