(syn. Fregetta Ϯ Black-bellied Storm-petrel F. tropica) Genus Fregetta Bonaparte, 1855, storm-petrel; Gr. ανδριας andrias image; "Mr. GREGORY M. MATHEWS, sent the following note on the name of a genus of Storm Petrel which is pre-occupied, and for which he proposes: Fregandria for Fregolla, Mathews, Emu, vol. xxxvii. p. 142, Oct. 1st, 1937, NOT Fregella Walker, List. Lep. Brit. Mus. vol. i. p. 272, 1854" (Mathews 1938).