MEIACANTHUS ATRODORSALIS - (GUNTHER, 1877)
Actinopteri (Class) > Perciformes (Order) > Blennioidei (Suborder) > Blenniidae (Family) > Blenniinae (Subfamily) > Meiacanthus (Genus)
Blennie à bande noire, Eye-lash harptail-blenny, Eyelash fangblenny, Eyelash harp-tail, Forktail blenny, Lyretail blenny, Poison-fang blenny, Yellowtail fangblenny, Yellowtail poison-fang blenny, ôgon-nijiginpo,
Meiacanthus atrodorsalis atrodorsalis (Günther, 1877)
Petroscirtes atrodorsalis (Günther, 1877)
Petroscirtes herlihyi (Fowler, 1946)
Dorsal spines (total): 4; Dorsal soft rays (total): 25-28; Anal spines: 2; Anal soft rays: 15 - 18. Identified by the blue-edged diagonal black line from the eye and yellow dorsal fin or back. Adults have long filaments on the caudal fin tips; length without filaments. The species has an enormous curved, venomous fang on each side of the lower jar. The fangs, which are used for defence, are characteristic of the genus Meiacanthus. Max length : 11.0 cm. Depth range 1 - 30 m.
Meiacanthus: Greek, meion = less or lessen + Greek, akantha = thorn.
atrodorsalis: from Latin, atro = black and Latin, dorsalis = of the back. Presumably refers to the dark submarginal stripe usually present in the dorsal fin.
Western Pacific: Bali and the Philippines east to Samoa, north to Ryukyu Islands, south to Rowley Shoals, the southern Great Barrier Reef, and New Caledonia; throughout Micronesia.
Adults are found solitary or in pairs in lagoon and seaward reefs below the surge zone to 30 m depth. A common species, often seen along slopes and drop-offs, adults sometimes in small groups. Feed on zooplankton and also on small benthic invertebrates. Inoffensive, but immune from predation. Oviparous. Eggs are demersal and adhesive, and are attached to the substrate via a filamentous, adhesive pad or pedestal. Larvae are planktonic, often found in shallow, coastal waters. Threat to humans : Venomous.
Replaced by the uniformly yellow species Meiacanthus oualanensis (Günther, 1880) in Fiji, and by Meiacanthus tongaensis (Smith-Vaniz, 1987) in Tonga.
Mimicked by Ecsenius bicolor (Day, 1888) and Plagiotremus laudandus (Whitley, 1961).