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Diagnostic Description ( англиски )

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This species of the subgenus Trochocopus is distinguished by the following characters: pectoral-fin rays ii,15; lateral-line scales 42 + 2; scales above lateral line 4.5, scales below lateral line 13; predorsal scales 11; total gill rakers 12; shallow body its depth 25.0% SL; eye of moderate size with orbital diameter 7.0% SL; interorbital space narrow, 6.4% SL; caudal peduncle shallow, 13.2% SL; short posterior lobes on dorsal (11.1% SL) and anal (10.0% SL) fins; pectoral fin short, 18.0% SL; pelvic fin of moderate length, 16.1% SL, its tip reaching midway between fin origin and anus; posterior corner of mouth below anterior extent of orbit; upper jaw with length of first prominent anterior canine about equal length of second; dental ridge is smooth with regular series of granular teeth, single prominent canine at posterior end of jaw; lower jaw with first prominent anterior canine about half length of second; dental ridge with about 10 small erect canines increasing slightly in length from front to back, followed by about 8 shorter teeth; no vomerine teeth; pelvic fin short, tip reaching just beyond anus; body with 3 broad, red, lengthwise stripes separated by lemon-yellow or white stripes with lowermost red stripe not continuing anteriorly onto head, prominent black spot on middle red stripe on operculum behind eye and black pigmentation on membranes between first 3 or 4 dorsal-fin spines; juveniles have a prominent black spot at posterior end of middle red stripe on scaly caudal-fin base, which turns red in initial-phase adults and becomes more prominent in terminal-phase adults (Ref. 82450).
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Estelita Emily Capuli
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Morphology ( англиски )

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Dorsal spines (total): 12; Dorsal soft rays (total): 10; Analspines: 3; Analsoft rays: 12; Vertebrae: 28
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Biology ( англиски )

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This species was observed on a gentle slope, over clean rubble, in a highcurrent area (Ref. 82450).
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Lemon-striped pygmy hogfish ( англиски )

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The lemon-striped pygmy hogfish (Bodianus bennetti) is a species of ray-finned fish from the family Labridae, the wrasses.[1] This species is found on reefs in the Coral Sea off the coast of Queensland and in French Polynesia.

Description

The lemon-striped pygmy hogfish is a small slender wrasse (?) which has obvious, wide, horizontal red stripes which run from the head along the body in large adults; one strip runs along the back and inner part of the dorsal fin, another from the nose along the flanks ends in a spot on the upper caudal fin peduncle, while a third stripe runs along the lower side and lower part of the anal fin onto the caudal fin. There is a distinct black spot on the operculum. The gaps between the red stripes may be yellow. The body colour and pattern changes with age and mature males in what is known as the terminal-phase are similar to the above description but have a larger and prominent red spot on the upper part of the base of the caudal fin.[2] The largest specimen had a standard length of 10.9 centimetres (4.3 in).[1]

Distribution

The lemon-striped pygmy hogfish is found in the Western Pacific. It has been recorded in the Coral Sea off the northeastern coast of Queensland and off Moorea in French Polynesia.[1]

Habitat and biology

The lemon-striped pygmy hogfish occurs where there are gentle reef slopes over substrates consisting of clean rubble where there is a strong current. It has been filmed using baited remote underwater video on the Great Barrier Reef at depths of 155–179 metres (509–587 ft).[2]

Etymology

The specific name honours the collector of the holotype Timothy Bennett.[3]

References

  1. ^ a b c Froese, Rainer; Pauly, Daniel (eds.) (2019). "Bodianus bennetti" in FishBase. August 2019 version.
  2. ^ a b Bray, D.J. (2017). "Bodianus bennetti". Fishes of Australia. Museums Victoria. Retrieved 26 December 2019.
  3. ^ Martin F. Gomon & Fenton Walsh (2016). "A new pygmy hogfish (Labridae: Bodianus) of the subgenus Trochocopus from the tropical southern Pacific Ocean". Journal of the Ocean Science Foundation. 23: 12–20.
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Lemon-striped pygmy hogfish: Brief Summary ( англиски )

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The lemon-striped pygmy hogfish (Bodianus bennetti) is a species of ray-finned fish from the family Labridae, the wrasses. This species is found on reefs in the Coral Sea off the coast of Queensland and in French Polynesia.

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Bodianus bennetti ( италијански )

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Bodianus bennetti Gomon & Walsh, 2016 è un pesce di acqua salata appartenente alla famiglia Labridae[1].

Etimologia

Questa specie prende il nome da Timothy Bennett, che ne trovò l'olotipo[2].

Distribuzione e habitat

È diffuso dalla Polinesia Francese al mar dei Coralli, nell'ovest dell'oceano Pacifico[2]. È stato osservato fino a 130 m di profondità[3].

Descrizione

Presenta un corpo affusolato e lievemente compresso lateralmente, con la testa dal profilo appuntito; raggiunge i 10,9 cm[2].

La colorazione è quella tipica di altri Bodianus classificati nel sottogenere Trochocopus come Bodianus sepiacaudus e Bodianus neopercularis, per i quali è stato confuso in precedenza: fasce orizzontali rosse inframezzate da fasce più chiare, che in questa specie possono variare dal bianco al giallo acceso. Si distingue dalle altre specie del sottogenere grazie alla fascia rossa sul ventre, che si interrompe prima di raggiungere la testa[4]. Non è ancora del tutto noto cosa determini i cambiamenti di colore delle fasce chiare, ma si ipotizza che siano dovuti all'influenza dello stress[4]. I maschi adulti hanno una macchia rossa alla base della pinna caudale; negli esemplari non ancora maturi è nera.

Conservazione

Questa specie non è ancora valutata dalla lista rossa IUCN[2].

Note

  1. ^ (EN) Bodianus bennetti, in WoRMS (World Register of Marine Species).
  2. ^ a b c d (EN) Bodianus bennetti, su FishBase. URL consultato il 24 novembre 2020.
  3. ^ Gomon & Walsh, p.18.
  4. ^ a b Gomon & Walsh, p.19.

Bibliografia

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Bodianus bennetti: Brief Summary ( италијански )

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Bodianus bennetti Gomon & Walsh, 2016 è un pesce di acqua salata appartenente alla famiglia Labridae.

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Diagnosis ( англиски )

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A species of the subgenus Trochocopus with: ii,15 pectoral-fin rays; 42 + 2 lateral-line scales; 4.5 scales above lateral line, 13 scales below lateral line; 11 predorsal scales; 12 total gill rakers; shallow body, depth 25.0% SL; eye of moderate size, orbital diameter 7.0% SL; narrow interorbital space, 6.4% SL; shallow caudal peduncle, 13.2% SL; short posterior lobes on dorsal (11.1% SL) and anal (10.0% SL) fins; short pectoral fin, 18.0% SL; pelvic fin of moderate length, 16.1% SL, tip reaching midway between fin origin and anus; posterior corner of mouth below anterior extent of orbit; upper jaw with length of first prominent anterior canine about equal length of second; dental ridge smooth with regular series of granular teeth, single prominent canine at posterior end of jaw; lower jaw with first prominent anterior canine about half length of second; dental ridge with about 10 small erect canines increasing slightly in length from front to back, followed by about 8 shorter teeth; vomerine teeth 14 absent; pelvic fin short, tip reaching just beyond anus; body with three broad, red, lengthwise stripes separated by lemon-yellow or white stripes with lowermost red stripe not continuing anteriorly onto head, prominent black spot on middle red stripe on operculum behind eye and black pigmentation on membranes between first three or four dorsal-fin spines (Fig. 1); juveniles with prominent black spot at posterior end of middle red stripe on scaly caudal-fin base, which turns red in initial-phase adults and becomes more prominent in terminal-phase adults.

Навод

Gomon, M. F.; Walsh, F. (2016). A New Pygmy Hogfish (Labridae: Bodianus) Of The Subgenus Trochocopus From The Tropical Southern Pacific Ocean. Zenodo.

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