Endangered
Nothobranchius insularis
Nothobranchius insularis
Nothobranchius insularis is a killifish in the family Nothobranchiidae (order Cyprinodontiformes), recorded as Endangered and tied to Tanzania.
The killifish
African killifish in this family occupy seasonal pools and forest streams. Annual species bury eggs before the pool dies.
Killifish, livebearers, and splitfins — small-bodied freshwater fishes, many of them from a single lake, spring, or seasonal pool.
Range and habitat
Nothobranchius insularis is recorded from Tanzania.
The type locality — the place tied to the name-bearing specimen — is Mafia Island, approximately 3 km south of Kirongwe, Tanzania, 7°49.58'S, 39°48.87'E, elevation about 15 meters.
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
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
Nothobranchius insularis 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 Wikidata item Q49715362 and GBIF occurrence geography. No dedicated encyclopedia article was available at build time. Family and order context is original writing about the group — not a claim that a monograph exists for this name. Not an IUCN assessment. Confirm status and range on iucnredlist.org.



