A territorial herbivore. Adults inhabit reef flats, shallow lagoons, and semi-sheltered reef margins; common among patches of rubble or porous reef rock, surrounded by live coral, particularly in areas of mild surge . Also in high energy zones with mixed corals and short algae. They occur in small loose aggregations . Feeds on filamentous algae . Oviparous, distinct pairing during breeding . Eggs are demersal and adhere to the substrate . Males guard and aerate the eggs .
Dorsal spines (total): 12; Dorsal soft rays (total): 15 - 16; Anal spines: 2; Anal soft rays: 12 - 14. Diagnosis: Body dark brown to blackish; suborbital mostly blue with blue spots on side of head; most scales on side of body with blue transverse streak. Fins dark brown to blackish except pectorals which are translucent with dusky rays. Pectorals with scaly inner base and has pupil-sized black spot at the base of uppermost rays; a black spot (maybe bordered anteriorly with white) at base of posterior dorsal rays, slightly extending onto dorsal edge of caudal peduncle; with or without white bar across posterior half of body . Body depth 1.8-2.1 in SL .: short and / or deep; Cross section: oval.
Behavioural data for Whitebar gregory is currently being reviewed.
Diet information for Whitebar gregory is currently being compiled.
Oviparous, distinct pairing during breeding . Eggs are demersal and adhere to the substrate . Males guard and aerate the eggs .
Marine; reef-associated; non-migratory; depth range 0 - 4 m . Tropical; 35°N - 35°S north to the Ryukyu Islands, south to New Caledonia.
filamentous algae (Ref
| Language | Common Names |
|---|---|
| 🇬🇧English | White-banded Gregory · Whiteblotch Damselfish · whitebar gregory |
| 🏳️Catalan | Damisel·la esvelta |
| 🌍CES | sapín bělopruhý |
| 🇫🇷French | Demoiselle à tache blanche |
| 🇯🇵Japanese | Kiobisuzumedai · キオビスズメダイ |
| 🇵🇹Portuguese | Donzela-de-faixa-branca |
| 🇪🇸Spanish | Chopita de barra blanca |
| 🌍TAH | 'atoti |
| 🇨🇳Chinese | 厚殼仔 · 白带眶锯雀鲷 · 白帶眶鋸雀鯛 · 白帶高身雀鯛 |
| Scientific Name | Author | Year | Status |
|---|---|---|---|
| Eupomacentrus albifasciatus | Schlegel & Müller | 1839 | Synonym |
| Eupomacentrus albofasciatus | Schlegel & Müller | 1839 | Synonym |
| Parapomacentrus albifasciatus | Schlegel & Müller | 1839 | Synonym |
| Pomacentrus albifasciatus | Schlegel & Müller | 1839 | Synonym |
| Pomacentrus albofasciatus | Schlegel & Müller | 1839 | Synonym |
| Pomacentrus eclipticus | Jordan & Seale | 1906 | Synonym |
| Pomacentrus leucopleura | Bleeker | 1854 | Synonym |
Occurrence records from the Global Biodiversity Information Facility (GBIF) — 21 records indexed .
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