CreatureData

Rain bleak

Leucaspius delineatus (Heckel, 1843)

LCLeast Concernbony fish

The rain bleak (Leucaspius delineatus) is a bony fish in the family Cyprinidae, subfamily Leuciscinae, order Cypriniformes. It is also called Sunbleak, Moderlieschen, Able de Heckel, Motherless minnow and European sun bleak, and its scientific name carries the authority (Heckel, 1843).

Rain bleak (Leucaspius delineatus)
Photo: Viridiflavus · CC BY-SA 3.0 · Wikimedia Commons

Quick facts about the rain bleak

The IUCN Red List global assessment places it in the Least Concern (LC) category, which is not a threatened category.

Weight
Not recorded
Length
4 cm – 6 cmsrc for Length
Lifespan
Not recorded
Main food
Not recorded
Habitat
Not recorded
Young per litter or clutch
Not recorded
Reproduction
Eggssrc for Reproduction
Conservation status
Least Concern (IUCN)src for Conservation status
Countries on record
Not recorded

How big is the rain bleak?

RAIN BLEAK · LENGTH 6 CMADULT HUMAN · HEIGHT 1.7 M
At 6 cm, the recorded maximum length of the rain bleak is about 3.5% of the height of an adult human (1.7 m, a fixed reference used for scale).

Photos of the rain bleak

Only freely licensed photos are shown. Each carries its creator and licence.

Where does the rain bleak live?

Not recorded

Where has it been introduced?

The Global Register of Introduced and Invasive Species lists the rain bleak as introduced in 4 countries, and flagged as invasive in 1 of them.

  1. United Kingdominvasive
  2. Belgium
  3. France
  4. Russia

Introduced means brought by people and now present; invasive means the country's checklist records an impact. A species can be native to one part of a country and introduced in another. Source: Global Register of Introduced and Invasive Species (CC BY 4.0).

What is the rain bleak?

Quoted from WikipediaCC BY-SA 4.0

Leucaspius is a monospecific genus of ray-finned fish belonging to the subfamily Leuciscinae, of the family Leuciscidae. The only species in this genus is Leucaspius delineatus, known as the sunbleak, belica or moderlieschen. The species is found in Europe and Western Asia.

From the Wikipedia article “Leucaspius” (en.wikipedia.org/w/index.php?title=Leucaspius&oldid=1355305859), by Wikipedia contributors, licensed under CC BY-SA 4.0 (creativecommons.org/licenses/by-sa/4.0). This block is kept separate from our own text.

Is the rain bleak endangered?

The rain bleak is listed as Least Concern on the IUCN Red List: it is not currently at risk of extinction.

  1. LCLeast Concern
  2. NTNear Threatened
  3. VUVulnerable
  4. ENEndangered
  5. CRCritically Endangered
  6. EWExtinct in the Wild
  7. EXExtinct

Category via Wikidata (CC0). Find the full assessment on the IUCN Red List. See all Least Concern species. What the categories mean.

How is the rain bleak classified?

  1. kingdomAnimalia
  2. phylumChordata
  3. classTeleostei
  4. orderCypriniformes
  5. familyCyprinidae
  6. genusLeucaspius
  7. SpeciesLeucaspius delineatus (Heckel, 1843)

Synonyms Aspius ovsianka, Aspius owsianka, Cyprinus fischeri, Cyprinus pallasii, Cyprinus pallasii, Leucaspius abruptus, Leucaspius delineatus caucasicus, Leucaspius delineatus delineatus, Leucaspius delineatus dimorphus, Leucaspius delineatus dimorphus, Leucaspius delineatus var. dimorphus, Leucaspius relictus, Leuciscus pigmeus, Owsianka czernayi, Phoxinellus thracicus, Squalius delineatus

Other names and names in other languages (44)
  • Able de HeckelEnglish
  • European sun bleakEnglish
  • ModerlieschenEnglish
  • Motherless minnowEnglish
  • SunbleakEnglish
  • АўсянкаBelarusian
  • slunka obecnáCzech
  • regnløjeDanish
  • ModkeGerman
  • MalinchenGerman
  • ModerlieschenGerman
  • MutterlosekenGerman
  • SchneiderkarpfenGerman
  • SonnenfischchenGerman
  • ZwerglaubeGerman
  • ΜικροσίρκοGreek
  • ΜικρόσιρκοGreek
  • Carpín sin MadreSpanish
  • MudamaimEstonian
  • allikkosalakkaFinnish
  • able de HeckelFrench
  • L'Able de HeckelFrench
  • kurta baingHungarian
  • saulažuvėLithuanian
  • Paprastoji saulažuvėLithuanian
  • AuslejaLatvian
  • regnlaueNorwegian Bokmål
  • vetjeDutch
  • regnlaueNorwegian Nynorsk
  • słonecznicaPolish
  • Słonecznica pospolitaPolish
  • fufăRomanian
  • albişoarăRomanian
  • plevuşcăRomanian
  • верховкаRussian
  • Верховка обыкновеннаяRussian
  • ovsienka striebristáSlovak
  • belicaSlovenian
  • groplöjaSwedish
  • cüce kocaağızTurkish
  • ВерхівкаUkrainian
  • вівсянкаUkrainian
  • Верховка звичайнаUkrainian
  • 小赤稍魚Chinese

Catalogue of LifeWikipediaiNaturalistITISTAXREFWikidataWoRMSIUCN Red List

Relatives of the rain bleak

Other species in the same genus Leucaspius.

CompareRain bleak vs Leucaspius stymphalicus

Common questions

Each answer is written from the sourced facts on this page, and only where they hold the answer.

What kind of animal is the rain bleak?

The rain bleak is a bony fish. It belongs to the family Cyprinidae and the subfamily Leuciscinae.

What is the scientific name of the rain bleak?

Its scientific name is Leucaspius delineatus, in the genus Leucaspius.

Who named the rain bleak and when?

The scientific name Leucaspius delineatus carries the authority (Heckel, 1843).

Is the rain bleak endangered?

No. It is listed as Least Concern (LC) in the IUCN Red List global assessment, which is not a threatened category.

What other names does the rain bleak have?

Other English names are Sunbleak, Moderlieschen, Able de Heckel, Motherless minnow and European sun bleak.

Which order does the rain bleak belong to?

The rain bleak belongs to the order Cypriniformes, in the class Teleostei.

Is the rain bleak an invasive species?

In some places. The Global Register of Introduced and Invasive Species flags the rain bleak as invasive in 1 country: United Kingdom. It lists it as introduced in 4 in all.

Sources and how to cite this page

Data as of 2026-11-13. How this page is put together.

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APA

CreatureData. (2026). Rain bleak (Leucaspius delineatus). Retrieved from https://creaturedata.com/animals/rain-bleak

MLA

“Rain bleak (Leucaspius delineatus).” CreatureData, 2026, https://creaturedata.com/animals/rain-bleak.

BibTeX
@misc{rain_bleak_2026,
  title = {Rain bleak (Leucaspius delineatus)},
  author = {{CreatureData}},
  year = {2026},
  url = {https://creaturedata.com/animals/rain-bleak},
  note = {Data as of 2026-11-13}
}