Mecaenichthys

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: Ovalentaria

Familia: Pomacentridae
Subfamilia: Stegastinae
Genus: Mecaenichthys
Species: M. immaculatus
Name

Mecaenichthys Whitley, 1929:218

Type species: Heliastes immaculatus Ogilby, 1885. Type by original designation (also monotypic).
References

Whitley, G.P. 1929: Some fishes of the order Amphiprioniformes. Memoirs of the Queensland Museum,9 (pt 3): 207–246, Pls. 27-28.
Allen, G.R., N.J. Cross and C.J. Allen 2006: Zoological Catalogue of Australia. Volume 35. Fishes.

Vernacular names
English: Immaculate Damsel