Endangered
Brasilia Lyrefin
Simpsonichthys boitonei
Brasilia Lyrefin is a killifish in the family Rivulidae (order Cyprinodontiformes) — Simpsonichthys boitonei, recorded as Endangered and tied to Brazil.
The killifish
It was first described by Carvalho in 1959.
New World rivulids include annual killifish that survive a dry season as eggs in mud, and non-annual forest-stream forms.
Killifish, livebearers, and splitfins — small-bodied freshwater fishes, many of them from a single lake, spring, or seasonal pool.
Range and habitat
Brasilia Lyrefin is recorded from Brazil.
GBIF currently lists 54 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
Annual rivulids hatch, breed, and die in one wet season; the eggs wait in the mud. Non-annual species live in forest streams year-round.
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
Brasilia Lyrefin 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 English Wikipedia article on Brasilia Lyrefin — often a short stub, Wikidata item Q6410742 and GBIF occurrence geography. Family and order context is original field-guide writing about the group, not a copied assessment of this one species. Wikipedia text is CC BY-SA. Not an IUCN assessment. Counts, when quoted, can change — confirm them on the recovery programme and on iucnredlist.org.
