KYPHOSUS BIGIBBUS - (LACEPEDE, 1801)
Actinopterygii (Gigaclass) > Actinopteri (Class) > Teleostei (Subclass) > Centrarchiformes (Order) > Terapontoidei (Suborder) > Kyphosidae (Family) > Kyphosus (Genus)
Ui-ua à nageoires sombres, Kyphose double-bosses, Darkfin drummer, Brown chub, Gray chub, Gray rudderfish, Grys vetsak, Grå rorfisk, Minami-isuzumi, Noto-isuzumi, ノトイスズミ, 무늬깜쟁이, 南方舵鱼,
Etymologie
Kyphosus : du Grec, kyphos = une courbe, une bosse.
bigibbus : du préfixe Latin, bis = chiffre 2 + du Latin, gibbus = convexe, bombé, courbé en-dehors. Dans Histoire Naturelle des Poissons - 1801 - Tome 3 - 70ème Genre - P 115 par le citoyen la Cépède il est précisé pour ce poisson : "La bosse que ce poisson a sur la nuque, est grosse, arrondie, et placée sur une partie du corps tellement élevée, que si on tire une ligne droite du museau au milieu de la nageoire caudale, la hauteur du sommet de la bosse au-dessus de cette ligne horizontale est au moins égale au quart de la longueur totale de ce thoracin. La seconde bosse, qui nous a suggéré son nom spécifique, est conformée à peu près comme la première, mais moins grande, et située entre les yeux."
Description originale : Kyphosus bigibbus Lacepède, 1801 - Localité type : non précisée - La figure de ce poisson a été transmise par Commerson.
Synonymes
Dorsuarius nigrescens (Lacepède, 1803)
Kiphosus bigibbus (Lacepède, 1801)
Kyphosus biggibus (Lacepède, 1801)
Kyphosus fuscus (Lacepède, 1803)
Pimelepterus bosquii (Lacepède, 1802)
Pimelepterus fallax (Klunzinger, 1884)
Pimelepterus fuscus (Lacepède, 1803)
Pimelopterus fuscus (Lacepède, 1803)
Xyster fuscus (Lacepède, 1803)
Xyster nigrescens (Lacepède, 1831)
Biology
Found around exposed seaward reefs of isolated high islands.
Similar species
Kyphosus sectatrix (Linnaeus, 1758) - Reported from New Caledonia - Link to the species (here). It differs from Kyphosus bigibbus by having a lower total gill raker count (18-22 in Kyphosus bigibbus and ≥22 in Kyphosus sectatrix).
Kyphosus sydneyanus (Günther, 1886) - Reported from Southern Australia and New Zealand. It differs from Kyphosus bigibbus in the arrangement of precaudal and caudal vertebrae, by having a longer anal fin base length (18.1-24.8 %SL in Kyphosus bigibbus versus 14.0-22.4 %SL in Kyphosus sydneyanus), and by having a lower total scale row count (61-76 in Kyphosus bigibbus versus 52-66 in Kyphosus sydneyanus).
Ui-ua à nageoires sombres, Kyphose double-bosses, Darkfin drummer, Brown chub, Gray chub, Gray rudderfish, Grys vetsak, Grå rorfisk, Minami-isuzumi, Noto-isuzumi, ノトイスズミ, 무늬깜쟁이, 南方舵鱼,
Etymologie
Kyphosus : du Grec, kyphos = une courbe, une bosse.
bigibbus : du préfixe Latin, bis = chiffre 2 + du Latin, gibbus = convexe, bombé, courbé en-dehors. Dans Histoire Naturelle des Poissons - 1801 - Tome 3 - 70ème Genre - P 115 par le citoyen la Cépède il est précisé pour ce poisson : "La bosse que ce poisson a sur la nuque, est grosse, arrondie, et placée sur une partie du corps tellement élevée, que si on tire une ligne droite du museau au milieu de la nageoire caudale, la hauteur du sommet de la bosse au-dessus de cette ligne horizontale est au moins égale au quart de la longueur totale de ce thoracin. La seconde bosse, qui nous a suggéré son nom spécifique, est conformée à peu près comme la première, mais moins grande, et située entre les yeux."
Description originale : Kyphosus bigibbus Lacepède, 1801 - Localité type : non précisée - La figure de ce poisson a été transmise par Commerson.
Synonymes
Dorsuarius nigrescens (Lacepède, 1803)
Kiphosus bigibbus (Lacepède, 1801)
Kyphosus biggibus (Lacepède, 1801)
Kyphosus fuscus (Lacepède, 1803)
Pimelepterus bosquii (Lacepède, 1802)
Pimelepterus fallax (Klunzinger, 1884)
Pimelepterus fuscus (Lacepède, 1803)
Pimelopterus fuscus (Lacepède, 1803)
Xyster fuscus (Lacepède, 1803)
Xyster nigrescens (Lacepède, 1831)
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Description
Dorsal spines (total): 11; Dorsal soft rays (total): 11-12; Anal spines: 3; Anal soft rays: 10-12; Unpaired fins dusky. Pectoral fin relatively short (13.6-21.3 %SL). Anal-fin base relatively long (18.1-24.8 %SL). Lateral line: 61-76 scales in total, of which: 51-60 has pores. Longitudinal scale rows: 54-67. Cheek scales: 9-16. Precaudal vertebrae: 10, caudal vertebrae: 16. Low number of dorsal and anal pterygiophores: 20-21 and 12, respectively. Scales present in interorbital region. Gill rakers externally on first arch: 4-7 and 13-17 on upper and lower limb, respectively. Body oblong, elliptical in lateral view. Caudal fin not deeply emarginated. Scales ctenoid, present on interorbital region, and covering postorbital region, cheek and operculum, and arranged in rows along the body from the posterior edge of the operculum to the caudal fin. Mouth terminal and ventrally oblique. Teeth lanceolate or incisiform. Small patch of pointed cone-shaped teeth arranged in 3-4 rows on mouth floor and mouth roof situated well behind outer front row. Head profile slightly pointed, but with a distinct bump on the front of the head when viewed in profile. Max. length: 75.0 cm TL. Max. published weight: 1.9 kg. Depth range: 2 - 25 m.
Color
Variable brownish to silvery with dusky unpaired fins when fresh. The soft part of the dorsal- and the soft part of the anal fin can appear dusky and have black or darker edges. The caudal fin can also appear dusky. The dark edges on dorsal-, anal- and caudal fin appear pronounced in more adult individuals, but also appear to vary from habitat to habitat. Although a dark patch occasionally can be present in the posterior-ventral corner of the pectoral-fin base, this does not appear to be a consistent color marking and should not be used for identification. The ventral part of the body more silvery and the dorsal part of the body with a more bronzed to green or dark green coloration. Cheek and area below eye usually with a white or silvery streak.
Etymology
Kyphosus: from Greek, kyphos = bent, a hump.
bigibbus: from Latin prefix, bis = having two parts, occurring twice + from Latin, gibbus = humped, hunched, gibbous.
Original description: Kyphosus bigibbus Lacepède, 1801 - Type locality: no locality stated.
Distribution
Western Atlantic: including Caribbean Sea; Eastern Atlantic; Red Sea; Indo-West Pacific: East Africa, South Africa, Socotra, Seychelles, Comoros, Madagascar and Mascarenes east to Indonesia, north to central Japan, south to Australia, New Caledonia northern New Zealand and Kermadec Islands.
Description
Dorsal spines (total): 11; Dorsal soft rays (total): 11-12; Anal spines: 3; Anal soft rays: 10-12; Unpaired fins dusky. Pectoral fin relatively short (13.6-21.3 %SL). Anal-fin base relatively long (18.1-24.8 %SL). Lateral line: 61-76 scales in total, of which: 51-60 has pores. Longitudinal scale rows: 54-67. Cheek scales: 9-16. Precaudal vertebrae: 10, caudal vertebrae: 16. Low number of dorsal and anal pterygiophores: 20-21 and 12, respectively. Scales present in interorbital region. Gill rakers externally on first arch: 4-7 and 13-17 on upper and lower limb, respectively. Body oblong, elliptical in lateral view. Caudal fin not deeply emarginated. Scales ctenoid, present on interorbital region, and covering postorbital region, cheek and operculum, and arranged in rows along the body from the posterior edge of the operculum to the caudal fin. Mouth terminal and ventrally oblique. Teeth lanceolate or incisiform. Small patch of pointed cone-shaped teeth arranged in 3-4 rows on mouth floor and mouth roof situated well behind outer front row. Head profile slightly pointed, but with a distinct bump on the front of the head when viewed in profile. Max. length: 75.0 cm TL. Max. published weight: 1.9 kg. Depth range: 2 - 25 m.
Color
Variable brownish to silvery with dusky unpaired fins when fresh. The soft part of the dorsal- and the soft part of the anal fin can appear dusky and have black or darker edges. The caudal fin can also appear dusky. The dark edges on dorsal-, anal- and caudal fin appear pronounced in more adult individuals, but also appear to vary from habitat to habitat. Although a dark patch occasionally can be present in the posterior-ventral corner of the pectoral-fin base, this does not appear to be a consistent color marking and should not be used for identification. The ventral part of the body more silvery and the dorsal part of the body with a more bronzed to green or dark green coloration. Cheek and area below eye usually with a white or silvery streak.
Etymology
Kyphosus: from Greek, kyphos = bent, a hump.
bigibbus: from Latin prefix, bis = having two parts, occurring twice + from Latin, gibbus = humped, hunched, gibbous.
Original description: Kyphosus bigibbus Lacepède, 1801 - Type locality: no locality stated.
Distribution
Western Atlantic: including Caribbean Sea; Eastern Atlantic; Red Sea; Indo-West Pacific: East Africa, South Africa, Socotra, Seychelles, Comoros, Madagascar and Mascarenes east to Indonesia, north to central Japan, south to Australia, New Caledonia northern New Zealand and Kermadec Islands.
Biology
Found around exposed seaward reefs of isolated high islands.
Similar species
Kyphosus sectatrix (Linnaeus, 1758) - Reported from New Caledonia - Link to the species (here). It differs from Kyphosus bigibbus by having a lower total gill raker count (18-22 in Kyphosus bigibbus and ≥22 in Kyphosus sectatrix).
Kyphosus sydneyanus (Günther, 1886) - Reported from Southern Australia and New Zealand. It differs from Kyphosus bigibbus in the arrangement of precaudal and caudal vertebrae, by having a longer anal fin base length (18.1-24.8 %SL in Kyphosus bigibbus versus 14.0-22.4 %SL in Kyphosus sydneyanus), and by having a lower total scale row count (61-76 in Kyphosus bigibbus versus 52-66 in Kyphosus sydneyanus).