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Pseudamia hayashii
Pseudamia hayashii Randall, Lachner & Fraser, 1985
Hayashi's cardinalfish
Pseudamia hayashii
photo by Malaer, P.

Family:  Apogonidae (Cardinalfishes), subfamily: Pseudamiinae
Max. size:  10 cm TL (male/unsexed)
Environment:  reef-associated; marine; depth range 2 - 64 m
Distribution:  Indo-Pacific: Gulf of Aden to Samoa, north to southern Japan, south to Western Australia.
Diagnosis:  Dorsal spines (total): 7-7; Dorsal soft rays (total): 8-8; Anal spines: 2-2; Anal soft rays: 7-8; Vertebrae: 24-24. Translucent when fresh with a reddish cast, overlaid with iridescence particularly on abdomen and operculum predominated by golden hues; dusky caudal fin with hyaline border; 1st and 2nd dorsal and anal fin pale to dusky or blackish, other fins are clear with pink rays. Anterior nostril without long flap. Rhomboid caudal fin. 23-24 scales in longitudinal series. Gill rakers 4-5+11-13, 1-7 developed. Convex interorbital space. Oblique mouth. Predorsal scales 10 (9-11). This species resembles P. amblyuroptera and P. gelatinosa but has larger scales (LR<=24) (Ref. 37816).
Biology:  Inhabits lagoon and seaward reefs; hides in small caves and under ledges. Solitary and usually seen at night (Ref 90102).
IUCN Red List Status: Least Concern (LC); Date assessed: 17 August 2023 Ref. (130435)
Threat to humans:  harmless


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