Bathothauma Egea Galiteuthis Helicocranchia Liguriella Megalocranchia Mesonychoteuthis Sandalops Taonius Teuthowenia Taoniinae is a subfamily containing ten genera of glass squids.

Unlike Cranchiinae Pfeffer, 1912, the other subfamily within Cranchiidae Prosch, 1847, Taoniinae all lack cartilaginous strips that extend back from the funnel-mantle point of fusion.

[6] When Georg Johann Pfeffer circumscribed this subfamily in 1912, he grouped its genera into three tribes:[1] Synonyms of Taoniinae include Galiteuthinae Berry, 1912 and Teuthoweniinae Grimpe, 1922.

[18] However, Patrizia Jereb and Clyde F. E. Roper recognize Belonella as a distinct genus from Taonius, although they also note they are frequently synonymized.

Jereb and Roper also note Kir Nazimovich Nesis and Takashi Okutani as teuthologists who rejected Voss's synonymization of Belonella.