NEMIPTERUS FURCOSUS - (VALENCIENNES, 1830)
Actinopterygii (Gigaclass) > Actinopteri (Class) > Teleostei (Subclass) > Acanthuriformes (Order) > Nemipteridae (Family) > Nemipterus (Genus)
Fork-tailed threadfin, Fork-tailed threadfin bream, Forktailed threadfin bream, Gold perch, Peron's butterfly-bream, Peron's threadfin bream, Red butterfly bream, Rosy threadfin bream, Threadfin bream, Momo-itoyori, モモイトヨリ, 奥氏金线鱼, Cá Lượng vây đỏ,
Synonymes
Dentex furcosus (Valenciennes, 1830)
Dentex hypselognathus (Bleeker, 1873)
Dentex ovenii (Bleeker, 1854)
Dentex sundanensis (Bleeker, 1873)
Dentex upeneoides (Bleeker, 1853)
Genyorage rubicauda (Saville-Kent, 1893)
Nemipterus hypselognathus (Bleeker, 1873)
Nemipterus ovenii (Bleeker, 1854)
Nemipterus robustus (Ogilby, 1916)
Nemipterus sudanensis (Bleeker, 1873)
Nemipterus sundanensis (Bleeker, 1873)
Nemipterus upeneoides (Bleeker, 1853)
Nemipterus worcesteri (Evermann & Seale, 1907)
Synagris furcosus (Günther, 1859)
Synagris hypselognathus (Bleeker, 1873)
Synagris ovenii (Bleeker, 1854)
Synagris upeneoides (Bleeker, 1853)
Synagris worcesteri (Evermann & Seale, 1907)
-----------------------------
Description
Dorsal spines (total): 10; Dorsal soft rays (total): 9; Anal spines: 3; Anal soft rays: 7; Pectoral fin rays: 15-17, moderately long: 0.8-1.1 times in head length, reaching to or just short of level of anus; Pelvic fins moderately long: 1.3-1.7 times in head length, reaching to or just short of level of anus; Caudal fin deeply forked. Body depth: 3.0-3.9 times in Standard Length. Snout length equal to or greater than eye diameter. Two or Three pairs of small recurved canines anteriorly in upper jaw. Eye diameter: 2.8-4.0 times in Head Length; Lower margin of eye tangent to or above a line from tip of snout to upper base of pectoral fins; Interorbital width: 1.1-1.7 times in eye diameter; Suborbital depth: 0.9-1.9 times in eye diameter; A line drawn up from posterior edge of suborbital reaching the dorsal profile at about origin of dorsal fin. Width of naked area of preopercle: 1.0-1.4 times in width of scaly area. Total gill rakers on first gill arch: 9-12. Suborbital spine absent. Preopercle with 3 transverse scale rows. Max. length: 24.0 cm SL, common length: 18.0 cm TL. Depth range: 8 - 110 m.
Color
Head and body pale iridescent pink, paling on sides to silvery-white below; Back with nine indistinct cross bars, extending to just beneath lateral line; Third bar somewhat darker and more distinct, forming a reddish shoulder spot behind origin of lateral line in some specimens; Traces of indistinct yellowish stripes along body, one above and several below lateral line; Cheeks and opercle silvery, upper jaw rosy, lower jaw silvery; Eye rosy; Dorsal fin pale rosy, sometimes with yellowish tinge, outer margin darker pink; Anal fin bluish white, with row of transparent or faint yellowish spots near base; Caudal fin pale rosy, with yellow tinge, lower margin of fin white; Pelvic fins and axillary scales white; Pectoral fins rosy.
Etymology
Nemipterus: from Greek, nema, -atos = filament + from Greek, pteron = wing, fin. Referring to filamentous dorsal- and caudal-fin rays of Dentex filamentosus (=Nemipterus nematophorus).
furcosus: from Latin, furca = wrinkle, pucker, fold + from latin suffix, -ōsus = full of, prone to. Used to form adjectives from nouns. Referring to deeply forked caudal fin.
Original description: Dentex furcosus Valenciennes, 1830 - Type locality: Trincomalee, Sri Lanka.
Distribution
Indo-West Pacific: Maldives, India, Bangladesh and Myanmar, east to New Ireland (Papua New Guinea), north to southern Japan, south to Queensland (Australia) and New Caledonia.
Biology
Inhabits sandy and muddy bottoms; Also in sheltered estuaries. Feeding occurs during the day, with crustaceans and small fishes predominating. Principal catch in the Taiwanese pair-trawl fishery off the coast of northwestern Australia. Good food fish. Females predominate at small size classes while males dominate the larger size classes, and there is some evidence that this species is a sequential hermaphrodite.
Similar species
Nemipterus peronii (Valenciennes, 1830) - Reported from New Caledonia.
Last update: 11, September 2024
Fork-tailed threadfin, Fork-tailed threadfin bream, Forktailed threadfin bream, Gold perch, Peron's butterfly-bream, Peron's threadfin bream, Red butterfly bream, Rosy threadfin bream, Threadfin bream, Momo-itoyori, モモイトヨリ, 奥氏金线鱼, Cá Lượng vây đỏ,
Synonymes
Dentex furcosus (Valenciennes, 1830)
Dentex hypselognathus (Bleeker, 1873)
Dentex ovenii (Bleeker, 1854)
Dentex sundanensis (Bleeker, 1873)
Dentex upeneoides (Bleeker, 1853)
Genyorage rubicauda (Saville-Kent, 1893)
Nemipterus hypselognathus (Bleeker, 1873)
Nemipterus ovenii (Bleeker, 1854)
Nemipterus robustus (Ogilby, 1916)
Nemipterus sudanensis (Bleeker, 1873)
Nemipterus sundanensis (Bleeker, 1873)
Nemipterus upeneoides (Bleeker, 1853)
Nemipterus worcesteri (Evermann & Seale, 1907)
Synagris furcosus (Günther, 1859)
Synagris hypselognathus (Bleeker, 1873)
Synagris ovenii (Bleeker, 1854)
Synagris upeneoides (Bleeker, 1853)
Synagris worcesteri (Evermann & Seale, 1907)
-----------------------------
Description
Dorsal spines (total): 10; Dorsal soft rays (total): 9; Anal spines: 3; Anal soft rays: 7; Pectoral fin rays: 15-17, moderately long: 0.8-1.1 times in head length, reaching to or just short of level of anus; Pelvic fins moderately long: 1.3-1.7 times in head length, reaching to or just short of level of anus; Caudal fin deeply forked. Body depth: 3.0-3.9 times in Standard Length. Snout length equal to or greater than eye diameter. Two or Three pairs of small recurved canines anteriorly in upper jaw. Eye diameter: 2.8-4.0 times in Head Length; Lower margin of eye tangent to or above a line from tip of snout to upper base of pectoral fins; Interorbital width: 1.1-1.7 times in eye diameter; Suborbital depth: 0.9-1.9 times in eye diameter; A line drawn up from posterior edge of suborbital reaching the dorsal profile at about origin of dorsal fin. Width of naked area of preopercle: 1.0-1.4 times in width of scaly area. Total gill rakers on first gill arch: 9-12. Suborbital spine absent. Preopercle with 3 transverse scale rows. Max. length: 24.0 cm SL, common length: 18.0 cm TL. Depth range: 8 - 110 m.
Color
Head and body pale iridescent pink, paling on sides to silvery-white below; Back with nine indistinct cross bars, extending to just beneath lateral line; Third bar somewhat darker and more distinct, forming a reddish shoulder spot behind origin of lateral line in some specimens; Traces of indistinct yellowish stripes along body, one above and several below lateral line; Cheeks and opercle silvery, upper jaw rosy, lower jaw silvery; Eye rosy; Dorsal fin pale rosy, sometimes with yellowish tinge, outer margin darker pink; Anal fin bluish white, with row of transparent or faint yellowish spots near base; Caudal fin pale rosy, with yellow tinge, lower margin of fin white; Pelvic fins and axillary scales white; Pectoral fins rosy.
Etymology
Nemipterus: from Greek, nema, -atos = filament + from Greek, pteron = wing, fin. Referring to filamentous dorsal- and caudal-fin rays of Dentex filamentosus (=Nemipterus nematophorus).
furcosus: from Latin, furca = wrinkle, pucker, fold + from latin suffix, -ōsus = full of, prone to. Used to form adjectives from nouns. Referring to deeply forked caudal fin.
Original description: Dentex furcosus Valenciennes, 1830 - Type locality: Trincomalee, Sri Lanka.
Distribution
Indo-West Pacific: Maldives, India, Bangladesh and Myanmar, east to New Ireland (Papua New Guinea), north to southern Japan, south to Queensland (Australia) and New Caledonia.
Biology
Inhabits sandy and muddy bottoms; Also in sheltered estuaries. Feeding occurs during the day, with crustaceans and small fishes predominating. Principal catch in the Taiwanese pair-trawl fishery off the coast of northwestern Australia. Good food fish. Females predominate at small size classes while males dominate the larger size classes, and there is some evidence that this species is a sequential hermaphrodite.
Similar species
Nemipterus peronii (Valenciennes, 1830) - Reported from New Caledonia.
Last update: 11, September 2024