Common name: Deepwater sicklefin hound shark
Original description species: Compagno & Stevens, 1993
Genus: Hemitriakis Herre, 1923
Family: Triakidae Gray, 1851
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Takahashi & Nakaya, 2004
Genus: Hemitriakis Herre, 1923
Family: Triakidae Gray, 1851
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Common name: Sicklefin hound shark
Original description species: Compagno & Stevens, 1993
Genus: Hemitriakis Herre, 1923
Family: Triakidae Gray, 1851
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Common name: Indonesian Houndshark
Original description species: White, Compagno & Dharmadi, 2009
Genus: Hemitriakis Herre, 1923
Family: Triakidae Gray, 1851
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Eugaleus japanicus, Galeorhinus japanicus, Galeorhinus japonicus, Galeus japanicus, Galeus japonicus, Hemitriakis japonica, Hemitriakis japonicus
Common name: Japanese topeshark
Original description species: (Müller & Henle, 1839)
Genus: Hemitriakis Herre, 1923
Family: Triakidae Gray, 1851
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Triakis leucoperiptera
Common name: Whitefin topeshark
Original description species: Herre, 1923
Genus: Hemitriakis Herre, 1923
Family: Triakidae Gray, 1851
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii