Naso tergus

Taxonavigation

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

• 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

• 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]