insolitus, Istiblennius gibbifrons Smith [J. L. B.] 1959:242, Pl. 16 (fig. 2) [Ichthyological Bulletin, Department of Ichthyology, Rhodes University No. 14; ref. 4123] Assumption Island, Seychelles, western Indian Ocean. Holotype: SAIAB [formerly RUSI] 247. Paratypes: (8) not researched. •Synonym of Istiblennius gibbifrons (Quoy & Gaimard 1824) -- (Springer 1986:748 [ref. 5719]). •Synonym of Blenniella gibbifrons (Quoy & Gaimard 1824) -- (Springer & Williams 1994:68 [ref. 21878], Williams & Springer 2022:338 [ref. 39951]). Current status: Synonym of Blenniella gibbifrons (Quoy & Gaimard 1824). Blenniidae: Salariinae. Habitat: marine.