Hemitrygon

Life-forms

Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Superphylum: Deuterostomia
Phylum: Chordata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Classis: Chondrichthyes
Subclassis: Elasmobranchii
Infraclassis: Euselachii
Division/Cohort: Neoselachii
Subdivision/Subcohort: Batoidea
Superordo: Batomorphii
Ordo: Myliobatiformes
Subordo: Myliobatoidei
Superfamilia: Dasyatoidea

Familia: Dasyatidae
Subfamilia: Dasyatinae
Genus: Hemitrygon
Species (10): H. akajei – H. bennettii – H. fluviorum – H. izuensis – H. laevigata – H. laosensis – H. longicauda – H. navarrae – H. parvonigra – H. sinensis
Name

Hemitrygon J. P. Müller & Henle, 1838: 90

Type species: Trygon bennettii Müller & Henle, 1841, by subsequent monotypy.
References
Primary references

Müller, J. & Henle, F.G.J. 1838. On the generic characters of cartilaginous fishes, with descriptions of new genera. Magazine of Natural History (n.s.) 2: 33–37, 88–91.

Additional references

Last, P.R., Naylor, G.J.P. & Manjaji-Matsumoto, B.M. 2016. A revised classification of the family Dasyatidae (Chondrichthyes: Myliobatiformes) based on new morphological and molecular insights. Zootaxa 4139(3): 345–368. DOI: 10.11646/zootaxa.4139.3.2. Reference page.

Hemitrygon is a genus of stingrays in the family Dasyatidae from marine, brackish and freshwater habitats in the central Indo-Pacific and northwest Pacific regions. The genus was formerly regarded as a junior synonym of the genus Dasyatis.[1]
Species

The taxonomy of Hemitrygon requires revision, as some existing species may be synonyms and there may be undescribed species. H. yemenensis was described in 2020 from materials collected nearly 120 years ago and its status in the wild is unknown.[2]

Hemitrygon akajei (Müller & Henle, 1841) (Red stingray)
Hemitrygon bennetti (Müller & Henle, 1841) Bennett's stingray)
Hemitrygon fluviorum (Ogilby, 1908) (Estuary stingray)
Hemitrygon izuensis (Nishida & Nakaya, 1988) (Izu stingray)
Hemitrygon laevigata (Chu, 1960) (Yantai stingray)
Hemitrygon laosensis (Roberts & Karnasuta, 1987) (Mekong freshwater stingray)
Hemitrygon longicauda (Last & W. T. White, 2013) (Merauke stingray)
Hemitrygon navarrae (Steindachner, 1892) (Blackish stingray)
Hemitrygon parvonigra (Last & White, 2008) (Dwarf black stingray)
Hemitrygon sinensis (Steindachner, 1892) (Chinese stingray)
Hemitrygon yemenensis A. B. M. Moore, Last & Naylor, 2020

References

Last, P.R.; Naylor, G.J.; Manjaji-Matsumoto, B.M. (2016). "A revised classification of the family Dasyatidae (Chondrichthyes: Myliobatiformes) based on new morphological and molecular insights". Zootaxa. 4139 (3): 345–368. doi:10.11646/zootaxa.4139.3.2. PMID 27470808.
Moore, Alec B. M.; Last, Peter R.; Naylor, Gavin J. P. (2020-07-23). "Hemitrygon yemenensis sp. nov., a new species of stingray (Myliobatoidea: Dasyatidae) from the northwestern Indian Ocean". Zootaxa. 4819 (2): 364–374. doi:10.11646/zootaxa.4819.2.8. ISSN 1175-5334.