Elasmobranchii (sharks and rays) >
Carcharhiniformes (Ground sharks) >
Triakidae (Houndsharks) > Galeorhininae
Etymology: Hemitriakis: hemi-, from hemisys (Gr.), half, being a genus that Herre believed was “most closely related” to Triakis. (See ETYFish); abdita: Latin for hidden, referring to the close external similarity of this sibling species to H. falcata. (See ETYFish).