Třída: Chondrichthyes - paryby
Řád: Squaliformes - ostrouni
Čeleď: Dalatiidae - světlounovití

Typový druh: Squaliolus laticaudus Smith & Radcliffe, 1912

Reference: Smith H. M. 1912. The squaloid sharks of the Philippine Archipelago, with descriptions of new genera and species. [Scientific results of the Philippine cruise of the Fisheries steamer "Albatross," 1907-10.--No. 15.] Proc. U. S. Natl. Mus. v. 41 (no. 1877). 677-685.

Přehled druhů

• Squaliolus aliae Teng, 1959
  Světloun křídlatý
  Teng, H.-T. 1959. Studeis [sic] on the elasmobranch fishes from Formosa. Pt. 4. Squaliolus alii, a new species of deep sea squaloid shark from Tung-Kang, Formosa. Rep. Lab. Fish. Biol. Taiwan No. 8: 1-6, Pl. 1.
• Squaliolus laticaudus Smith & Radcliffe, 1912
  Světloun drobný
  Smith, H. M. 1912. The squaloid sharks of the Philippine Archipelago, with descriptions of new genera and species. [Scientific results of the Philippine cruise of the Fisheries steamer "Albatross," 1907-10.--No. 15.]. Proc. U. S. Natl. Mus. v. 41 (no. 1877): 677-685, Pls. 50-54.

Statistické údaje

Počet druhů: 2