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Pervagor alternans (Ogilby, 1899)

Yelloweye filefish
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Pervagor alternans
Picture by Muséum-Aquarium de Nancy/D. Terver

Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa

Teleostei (teleosts) > Tetraodontiformes (Puffers and filefishes) > Monacanthidae (Filefishes)
Etymology: Pervagor: Latin, pervagor = nomadic, itinerant.
More on author: Ogilby.

Environment: milieu / climate zone / depth range / distribution range Ecology

Marine; reef-associated; depth range 15 - ? m (Ref. 9710). Tropical; 15°N - 40°S

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Western Pacific: east coast of Australia, Lord Howe Island, New Caledonia, and the Marshall Islands. Recently recorded from Tonga (Ref. 53797). Described as an antitropical species.

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 16.0 cm TL male/unsexed; (Ref. 9710)

Short description Identification keys | Morphology | Morphometrics

Dorsal spines (total): 1 - 2; Dorsal soft rays (total): 31 - 34; Anal spines: 0; Anal soft rays: 27 - 31; Vertebrae: 19. A strong first dorsal spine armed with 2 rows of prominent, laterally-directed barbs. Posterior margin of ventral flap not attached to large and barbed pelvic rudiment. Distinguished by a bright yellow ring around the eye (Ref. 1602). Head and body blackish brown to pale, pinkish brown; blackish band usually encircling the snout; eyes and surrounding area bright yellow. Caudal fin generally orange; soft dorsal and anal fins spotted, clear or yellowish orange basally; pectoral fins clear, base blackish brown. Scales on posterior half of body with spinules, number increasing with age; adult male with scale rugosities

Biology     Glossary (e.g. epibenthic)

Uncommon species that occurs in coral and rocky reefs to a depth of about 15 m (Ref. 9710).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference Upload your references | References | Coordinator : Hutchins, Barry | Collaborators

Hutchins, J.B., 1986. Review of the monacanthid fish genus Pervagor, with descriptions of two new species. Indo-Pac. Fish. (12):35 p. (Ref. 527)

IUCN Red List Status (Ref. 130435: Version 2024-1)

  Least Concern (LC) ; Date assessed: 03 March 2015

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

FAO - Publication: search | FishSource |

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Trophic ecology
Food items
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Ecology
Ecology
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Length-weight rel.
Length-length rel.
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Maturity/Gills rel.
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