HOLOGYMNOSUS ANNULATUS
Picture courtesy of: Alain Daoulas
Actinopterygii (Gigaclass) > Actinopteri (Class) > Teleostei (Subclass) > Perciformes (Order) > Labroidei (Suborder) > Labridae (Family) > Hologymnosus (Genus)
Colombine annelée, Labre annelé, Ringed slender wrasse, Ring wrasse, Ringed wrasse, Pacific ringed wrasse, Gestreifter Hechtlippfisch, Colombina anelada, Colombina anillada, Namerabera, ナメラベラ, 环带细鳞盔鱼, 環紋全裸鸚鯛,
Synonymes
Coris elongata (Günther, 1862)
Coris semipartita (Günther, 1862)
Hemigumnosus semidiscus (Lacepède, 1801)
Hologymnos annulatus (Lacepède, 1801)
Hologymnosus semidiscus (Lacepède, 1801)
Labrus annulatus (Lacepède, 1801)
Labrus semidiscus (Lacepède, 1801)
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Description
Dorsal spines (total): 9; Dorsal soft rays (total): 12,the spines thin and flexible; Anal spines: 3; Anal soft rays: 12; Pectoral fin rays: 13; Lateral line scales: 100-118; Gill rakers: 19-23; Body depth: 3.5-5.1 in SL; Pectoral fins not short: 1.65-1.9 in Head. Head scaleless; Two pairs of canine teeth anteriorly in jaws; No canine at corner of mouth; Caudal fin slightly rounded in juveniles, emarginate in adults, the concavity of large males about 5 in Head Length. Max. length: 40.0 cm TL, common length: 34.0 cm TL. Depth range: 8 - 40 m.
Color
Initial phase brown to olive brown with 17-19 dark brown bars, a blue and black spot on opercular membrane, a black spot on side of lips (spot larger on lower lip), caudal fin with a large whitish crescent posteriorly.
Terminal males body green sometimes shading to blueish-green ventrally, with numerous bluish-red bars, often with a pale yellowish bar on body above origin of anal fin, head light purplish with green to blue-green bands radiating from eye, one forward onto snout expanding broadly and branching. Males from the Indian Ocean and Red Sea have a white band on the middle of the greenish body; The Pacific form has a pale peduncular area when in nuptial mode.
Etymology
Hologymnosus: from Greek, hólos = whole, full + from Greek, gymnos = naked. Described as lacking “any easily visible scales”; in actuality, its scales are small but its head is scaleless.
annulatus: from Latin, annulus = ring. Referring to ~19 narrow transverse bands on sides of adults, which appear to encircle the body and meet the bands on the opposite side (they do not).
Original description: Labrus annulatus Lacepède, 1801 - Type locality: Mauritius, Mascarenes, southwestern Indian Ocean.
Distribution
Red Sea, Indo-West Pacific: East Africa, Socotra, Seychelles, Comoros, Madagascar and Mascarenes east to Pitcairn, north to southern Japan, south to Australia, New Caledonia and Rapa.
Biology
Found on coral reefs and rocky substrates on offshore reef slopes. Juveniles generally solitary. Feeds primarily on small fishes, also on crustaceans. Pelagic spawner. Aquarium fish.
Similar species
Malacanthus latovittatus (Lacepède, 1801) - Reported from New Caledonia - Link to the species (here). Juvenile Hologymnosus annulatus very closely resemble juvenile Malacanthus latovittatus.
Last update: 21, April 2022
Actinopterygii (Gigaclass) > Actinopteri (Class) > Teleostei (Subclass) > Perciformes (Order) > Labroidei (Suborder) > Labridae (Family) > Hologymnosus (Genus)
Colombine annelée, Labre annelé, Ringed slender wrasse, Ring wrasse, Ringed wrasse, Pacific ringed wrasse, Gestreifter Hechtlippfisch, Colombina anelada, Colombina anillada, Namerabera, ナメラベラ, 环带细鳞盔鱼, 環紋全裸鸚鯛,
Synonymes
Coris elongata (Günther, 1862)
Coris semipartita (Günther, 1862)
Hemigumnosus semidiscus (Lacepède, 1801)
Hologymnos annulatus (Lacepède, 1801)
Hologymnosus semidiscus (Lacepède, 1801)
Labrus annulatus (Lacepède, 1801)
Labrus semidiscus (Lacepède, 1801)
----------------------
Description
Dorsal spines (total): 9; Dorsal soft rays (total): 12,the spines thin and flexible; Anal spines: 3; Anal soft rays: 12; Pectoral fin rays: 13; Lateral line scales: 100-118; Gill rakers: 19-23; Body depth: 3.5-5.1 in SL; Pectoral fins not short: 1.65-1.9 in Head. Head scaleless; Two pairs of canine teeth anteriorly in jaws; No canine at corner of mouth; Caudal fin slightly rounded in juveniles, emarginate in adults, the concavity of large males about 5 in Head Length. Max. length: 40.0 cm TL, common length: 34.0 cm TL. Depth range: 8 - 40 m.
Color
Initial phase brown to olive brown with 17-19 dark brown bars, a blue and black spot on opercular membrane, a black spot on side of lips (spot larger on lower lip), caudal fin with a large whitish crescent posteriorly.
Terminal males body green sometimes shading to blueish-green ventrally, with numerous bluish-red bars, often with a pale yellowish bar on body above origin of anal fin, head light purplish with green to blue-green bands radiating from eye, one forward onto snout expanding broadly and branching. Males from the Indian Ocean and Red Sea have a white band on the middle of the greenish body; The Pacific form has a pale peduncular area when in nuptial mode.
Etymology
Hologymnosus: from Greek, hólos = whole, full + from Greek, gymnos = naked. Described as lacking “any easily visible scales”; in actuality, its scales are small but its head is scaleless.
annulatus: from Latin, annulus = ring. Referring to ~19 narrow transverse bands on sides of adults, which appear to encircle the body and meet the bands on the opposite side (they do not).
Original description: Labrus annulatus Lacepède, 1801 - Type locality: Mauritius, Mascarenes, southwestern Indian Ocean.
Distribution
Red Sea, Indo-West Pacific: East Africa, Socotra, Seychelles, Comoros, Madagascar and Mascarenes east to Pitcairn, north to southern Japan, south to Australia, New Caledonia and Rapa.
Biology
Found on coral reefs and rocky substrates on offshore reef slopes. Juveniles generally solitary. Feeds primarily on small fishes, also on crustaceans. Pelagic spawner. Aquarium fish.
Similar species
Malacanthus latovittatus (Lacepède, 1801) - Reported from New Caledonia - Link to the species (here). Juvenile Hologymnosus annulatus very closely resemble juvenile Malacanthus latovittatus.
Last update: 21, April 2022