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Pachychilon pictum

species of fish

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Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionJul 11, 2026
Entity authorityQ581310 ↗
Source-derived summary

Pachychilon pictum, the Albanian roach or Albanian minnow, is a species of freshwater ray-finned fish belonging to the family Leuciscidae, which includes the daces, Eurasian minnows and related species. This species is endemic to the Western Balkans and has been introduced to France and Italy.

Taxonomy

Pachychilon pictum was first formally described as Squalius pictus in 1858 by the Austrian ichthyologists Johann Jakob Heckel and Rudolf Kner with its type locality given as the Reka river in Montenegro. In 1882 Franz Steindachner proposed a new subgenus of Leuciscus named Pachychilon for this species, Pachychilon is now regarded as a valid genus and this species is the type species of that genus by monotypy. The genus Pachychilon within the subfamily Leuciscinae of the family Leuciscidae.

Etymology

Pachychilon pictum is a member of the genus Pachychilon a name which combine pachys, meaning thick, with chilon, a latinisation of cheilos, which means lips, a reference to the thick lips of the fishes in this genus. The specific name, pictum, means "painted", an allusion to the variously sized and located dark brown marks on the body.

Description

Pachychilon pictum has its dorsal fin supported by 3 spines and between 7 and 9 softs rays while the anal fin contains 3 spines and between 8 and 10 soft rays. The main feature that distinguishes this species from P. macedonicum is the many variously shaped and sized brown markings on the body,, with a dark midlateral stripe which fades on preserved specimens. The lower lip is thick with a long lobe in the middle.

Editorial summary

Begin with the source’s own compact description: “Pachychilon pictum” is species of fish. The dossier treats that line as a proposition to test through Pachychilon, pictum and species, not as a finished interpretation.

Editorial reviewA sound reference starting point where classification, measurement and the date of the underlying evidence remain visible. The current lead gives the account dated anchors—1858, 1882—that can be checked directly. The selected authority fields contribute no independent date. For this dossier, Pachychilon, pictum and species is the immediate research focus.
Editorial analysis

Why this record matters

The phrase “species of fish” supplies a clear boundary for inquiry. It also exposes the unanswered questions: who defined that boundary, when it became stable and which sources sit outside it.

Evidence profile

Datasets, specimens, observations and peer-reviewed methods provide the appropriate test for the technical claims summarized here. The source revision retrieved here is dated Jul 11, 2026. The linked authority identifier is Q581310. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1858 and 1882.

Critical limits

A general summary may omit uncertainty, sample limits or methodological disagreement that is explicit in the technical record. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.

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Source & attribution

This entry incorporates text from “Pachychilon pictum” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.