Enneapterygius niue
Enneapterygius niue Fricke & Erdmann, 2017
Redbar triplefin
Enneapterygius niue
photo by Erdmann, M.V.


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Family:  Tripterygiidae (Triplefin blennies), subfamily: Tripterygiinae
Max. size:  1.96 cm SL (male/unsexed); 2.35 cm SL (female)
Environment:  reef-associated; marine
Distribution:  Southwestern Pacific Ocean: Niue and Samoa.
Diagnosis:  Dorsal spines (total): 16-18; Anal spines: 1-1; Anal soft rays: 19-21. This medium-sized species of barred Enneapterygius is distinguished by the following characters: D2 XIII-XV; A 18-20; lateral-line scales 14-19 + 16-20; total lateral scale rows 33-36; proportional measurements in thousandths of SL - eye diameter 94-128, preorbital 50-75, body depth 176-206, preanal fin length 483-538; sides of body with two short and five complete bars; pectoral-fin base has a vertical dark bar; preorbital with an oblique dark band; dorsal fins are pale except for a dusky base; anal fin is dark grey in male and with four oblique brown bands in female; pelvic fins are white, caudal fin pale (Ref. 114928).
Biology:  Inhabits the intertidal and shallow coral-reef habitats (Ref. 114928).
IUCN Red List Status: Data deficient (DD); Date assessed: 05 March 2024 Ref. (130435)
Threat to humans:  harmless


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