Taxonavigation

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Taxonavigation: Acanthuroidei 

Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Superphylum: Deuterostomia
Phylum: Chordata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Megaclassis: Osteichthyes
Superclassis/Classis: Actinopterygii
Classis/Subclassis: Actinopteri
Subclassis/Infraclassis: Neopterygii
Infraclassis: Teleostei
Megacohors: Osteoglossocephalai
Supercohors: Clupeocephala
Cohors: Euteleosteomorpha
Subcohors: Neoteleostei
Infracohors: Eurypterygia
Sectio: Ctenosquamata
Subsectio: Acanthomorphata
Divisio/Superordo: Acanthopterygii
Subdivisio: Percomorphaceae
Series: Eupercaria
Ordo: Acanthuriformes
Subordo: Acanthuroidei

Familia: Acanthuridae
Genus: Naso
Species: Naso tergus

Name

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  • Naso tergus H.-C. Ho, Shen & Chang, 2011: 206, Figs. 1-3
  • Holotype: NMMB-P10808. Paratypes: NMMB-P2373 (1), 10480 (1), 10809 (1), 10810 (1), 10811 (1), 10812 (1), 10813 (1), 10814 (1), 10815 (1), 10816 (1), 10817 (1); QM I.38837 (1).
  • Type locality: Off Nanfangao, Ilan, northeastern Taiwan, depth 70-80 meters.
  • Diagnosis. A species of Naso differs from congeners in having VI dorsal-fi n spines; an acute head, without rostral projection or tuberosity in adults; two bony plates of caudal peduncle; a relatively large eye (6.3–7.2% SL); a median body depth, 2.8–2.9 in SL; 100–120 teeth on upper jaw and 90–110 on lower jaw; a uniformly brownish body coloration; a relatively small adult size which might not exceed 350 mm SL; and a different genome structure.
  • Distribution. Known from the type series, collected from off northeastern and southern Taiwan by bottom gill-net and hook and line at depths between 70 and 80 meters.
  • Etymology. The species name, tergus, meaning ‘to hide’, refers to the typical appearance of this species that makes it resemble subadults of many other Naso species.

References

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  • Ho, H.-C. , K.-N. Shen & C.-W. Chang 2011: A new species of the unicornfish genus Naso (Teleostei: Acanthuridae) from Taiwan, with comments on its phylogenetic relationship. The Raffles Bulletin of Zoology, 59(2): 205–211. [1]