Endangered
Iberochondrostoma olisiponensis
Iberochondrostoma olisiponensis
Iberochondrostoma olisiponensis is a minnow in the family Cyprinidae (order Cypriniformes), recorded as Endangered.
Appearance
It can be distinguished from the other Iberian nase species by the lack of horny blade on the lower jaw, the absence of intense reddish coloration at the base of the fins and by its pronouncedly arched mouth. It has elongated pelvic fins that reach the anus and often pass the anal-fin insertion in males, and dorsal, pelvic and anal fins usually have 8 branched rays. This species has 36 to 43 scales in the lateral line, 7.0 to 8.5 scales above the lateral line, 13 to 16 circumpeduncular scales, denticulated (vs. Smooth) grinding teeth surfaces, 6-5/5 pharyngeal teeth and 15 to 19 gill rakers.
Adults range from 5 to 11 cm (2.0 to 4.3 in), though there are records of specimens reaching ca. 18 cm (7.1 in).
Range and habitat
This species is endemic to the lower Rio Tejo basin. It was only found in three tributaries of the Tejo River, namely, Trancão, Maior, and Muge.
Pins are Wikidata “endemic to” fields. Orange dots, when present, are GBIF occurrence tiles — survey bias included.
In crisis
The species has been placed in the category Endangered B1ab(iii)+2ab(iii) according to IUCN criteria.
Iberochondrostoma olisiponensis 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 Iberochondrostoma olisiponensis, Wikidata item Q1107187. 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.
