simon, Acyrtus Gasparini [J. L.] & Pinheiro [H. T.] in Quintão, Gasparini, Joyeux, Rocha & Pinheiro 2022:5, Figs. 1-2 [Neotropical Ichthyology v. 20 (no. 3): e210137; ref. 39696] Calheta, Trindade Island, Brazil. Holotype: CIUFES 2915. Paratypes: CAS-ICH 247280 (1), CIUFES 2914 (1), 4448 (1, dissected specimen), MNRJ 52794 (1), MZUSP 125855 (2), NPM 6839 (1), ZUEC 17336 (1). •Valid as Acyrtus simon Gasparini & Pinheiro 2022 -- (Carvalho-Filho 2023:87 [ref. 40480]). Current status: Valid as Acyrtus simon Gasparini & Pinheiro 2022. Gobiesocidae: Gobiesocinae. Distribution: Southwestern Atlantic: Trindade and Martin Vaz Archipelago (Brazil) endemic. Habitat: marine.