
No sign-up needed. You can save notes on this device.
An illustration based on the real animal.
A little discovery to share.
The black-axil chromis has a forked tail fin.
THE REAL WORLD
The real Black-axil chromis
- Scientific name
- Chromis atripectoralis
- Japanese name
- アオバスズメダイ
- Group
- Ocean animals
- Order
- Blenniiformes
- Family
- Pomacentridae
- Genus
- Chromis
Where the name “Black-axil chromis” comes from
Its species name comes from Latin words meaning black and of the breast.
Museums VictoriaIt is the same blue-green color as the green chromis, but it has a black spot at the base of each pectoral fin.
How the Black-axil chromis lives
It lives in clear lagoons and reef passages. It eats zooplankton and fish eggs. It gathers in large feeding groups above branching corals.
Museums Victoria国立科学博物館Basic data
- Range
- Ryukyu Islands and Indo-Pacific
Where the Black-axil chromis has been recorded

Records: GBIF.org (CC0 and CC BY 4.0 records, retrieved 2026-11-07). Map: Natural EarthSee the records on GBIF
Watch wild animals from a distance. Do not touch or feed them, and take care of the places where they live.
Names around the world
- 日本語
- アオバスズメダイ
- 简体中文
- 月腋光鳃鱼
- 繁體中文
- 黑腋光鰓魚
- Español
- Castañuela celeste
- Français
- Chromis à tache axillaire noire
- Português (Brasil)
- Donzela-de-axila-preta
- Italiano
- Castagnola ascella nera
- Bahasa Indonesia
- Betok toska
Names come from Wikidata and iNaturalist records. Where a language has no recorded name, we use the scientific name.
Sources and how we check
- 鳥羽水族館 — アオバスズメダイChecked: 2026-11-04
- 国立科学博物館 — Chromis atripectoralisChecked: 2026-11-07
- Museums Victoria — Fishes of Australia — Blackaxil Puller, Chromis atripectoralisChecked: 2026-11-07
We check each fact against its source. The illustrations simplify how the real animal looks.
The classification (class, order, family, genus) follows Wikidata records, checked against GBIF. Classifications can change as research goes on.
The basic data are the values given in each source. They vary with how the animal is measured, whether it is male or female, and whether it lives in the wild or in captivity.
This page was translated from the original Japanese with the help of AI.
Report a mistake










