Dark-margin Chromis (Chromis hangganan)
Source-cited species reference: taxonomy from WoRMS, biology from FishBase, conservation from IUCN Red List, description from Wikipedia.
Last updated
Arango BG, Pinheiro HT, Rocha C, Greene BD, Pyle RL, Copus JM, Shepherd B, Rocha LA (2019) Three new species of Chromis (Teleostei, Pomacentridae) from mesophot · via Wikipedia: Chromis hangganan · CC BY 4.0
Chromis hangganan, the dark margin chromis, is a species of marine fish of the damselfishes in the family Pomacentridae belonging to the genus Chromis. This species was first described in 2019, along with Chromis bowesi and Chromis gunting, discovered and known only from Lubang Island, in the Philippines. It is characterized by 10–12 dorsal fin rays, 11–12 anal fin rays, 18 pectoral fin rays, 3 caudal fin rays that are procurrent, 16 lateral line scales that are tubed, 23–26 gill rakers, and a body depth of 1.9–2.0 in standard length(5.78 cm in length) as differed from other congeners. The adult fish's color when fresh is yellowish having dark black margins on the dorsal and anal fins.
Scientific classification
- KingdomAnimalia
- PhylumChordata
- ClassActinopterygii
- DivisionTeleostei
- OrderBlenniiformes
- FamilyPomacentridae
- GenusChromis
- SpeciesChromis hangganan
Named by Arango, Pinheiro, Rocha, Greene, Pyle, Copus, Shepherd & C. R. Rocha, 2019
Close relatives
Other species of Chromis with a Codexery entry.
- Chromis nitida
- Chromis atripectoralis
- Chromis punctipinnis
- Chromis chromis
- Chromis limbaughi
- Chromis lubbocki
- Chromis dispila
- Chromis brevirostris
Sources: Wikipedia taxobox: Chromis hangganan (CC BY-SA 4.0) · differs from this box at order: WoRMS AphiaID 1340192 (CC BY 4.0)
Conservation status
Least Concern (LC)
- LC▲ this species
- NT
- VU
- EN
- CR
- EW
- EX
Source: IUCN Red List assessment · GBIF copy of the Red List category
How big is it?
Largest length in the source, 0.06 m, next to a 1.8 m person.
Diagram: drawn by Codexery, schematic shapes to scale (not a likeness). Length: FishBase species summary
Where the dark-margin chromis (chromis hangganan) has been recorded
Map: drawn by Codexery. Data: Natural Earth basemap (public domain) · place coordinates: Wikipedia (CC BY-SA 4.0)
Classification (WoRMS)
Full classification as recorded by WoRMS: Kingdom: Animalia · Phylum: Chordata · Class: Teleostei · Order: Ovalentaria incertae sedis · Family: Pomacentridae · Genus: Chromis.
Accepted name: Chromis hangganan · Authority: Arango, Pinheiro, Rocha, Greene, Pyle, Copus, Shepherd & Rocha, 2019 · Taxonomic status: accepted · AphiaID: 1340192.
Source: World Register of Marine Species (WoRMS) — https://www.marinespecies.org/aphia.php?p=taxdetails&id=1340192 (CC BY 4.0). Accessed 2026-09-25.
Biology and life history (FishBase)
Measured values published by FishBase for Chromis hangganan. Only fields the database actually holds for this species are shown; these are database values, not aquarium guidance.
Maximum length: 5.78000020980835 cm · Depth range: 90–130 m · Habitat zone: reef-associated · Body shape: short and / or deep · Vulnerability index: 10 of 100 · Aquarium trade: never/rarely.
Source: FishBase species summary (SpecCode 69006) — https://www.fishbase.se/summary/Chromis-hangganan.html (CC BY-NC 3.0 — non-commercial use only). Accessed 2026-09-25.
Conservation status (IUCN Red List)
The IUCN Red List assesses Chromis hangganan Arango, Pinheiro, Rocha, Greene, Pyle, Copus, Shepherd & Rocha, 2019 as Least Concern (code LC). No trend, population estimate or threat analysis is given here, because none is available from this source without the Red List API; follow the source link for the full assessment, including its date.
Source: IUCN Red List of Threatened Species (taxon 241132747) — https://www.iucnredlist.org/species/241132747/0; GBIF IUCN Red List category endpoint (taxonKey 10311245) — https://api.gbif.org/v1/species/10311245/iucnRedListCategory. Accessed 2026-09-25.
Description and natural history (Wikipedia)
Chromis hangganan was particularly only found at Lubang Island, Oriental Mindoro. All three species, C. bowesi, C. gunting and C. hangganan comes from Philippines, and collected at a depth of about 75–150 m, with C. hangganan at 90–130 m.
The largest specimen used to describe C. hangganan has a size of about 5.7 cm. Images of fresh specimens are not captured. According to the authors, C. hangganan has a brown body; the upper body is darker brown than the lower body; its tail and caudal fins are pale yellow in particular. There are also black edges along the dorsal and anal fin spines.
Soft dorsal fin and anal fin have yellow rays. The mouth, snout and nape, and the area around the eyes are dark brown. The lower part of the head is light brown. There are also dark spots on the pectoral fin base.
The scientific nomenclature uses the word hangganan which means border in Tagalog, the specific epithet was in reference to the black margins along the dorsal and anal fins or referring to the appearance of the fish's fin margins or borders.
Source: Wikipedia: Chromis hangganan — https://en.wikipedia.org/wiki/Chromis_hangganan (CC BY-SA 4.0). Accessed 2026-09-25.
Sources
Compiled from Wikipedia and the sources listed below. Text from Wikipedia is available under CC BY-SA 4.0; this entry is adapted from it.
- Wikipedia: Chromis hangganan (CC BY-SA 4.0).
- Classification: the source article's taxobox; compare WoRMS, the World Register of Marine Species (CC BY 4.0).
- Conservation status: IUCN Red List assessment.
- Occurrence records: GBIF (CC0 / CC BY). Basemap: Natural Earth (public domain).
- Biology values: FishBase species summary (CC BY-NC 3.0, non-commercial).
- Word definitions: the , each quoted from its Wikipedia article.
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