microcephalus, Barbus Almaça [C. A.] 1967:321, Pls. 15-16 [Revista da Faculdade de Ciencias Universidade de Lisboa, Ser. 2, C -- Ciencias Naturais v. 14 (no. 2) (for 1966); ref. 7856] Río Guadiana, about 4 kilometers from Moura, and Río Ardila, Portugal. Syntypes: (20) Río Guadiana, (30) Río Ardila [apparently all types lost in fire in 1978] •Valid as Messinobarbus microcephalus (Almaça 1967) -- (Bianco 1998:134 [ref. 23811]). •Valid as Barbus microcephalus Almaça 1967 -- (Kottelat 1997:49 [ref. 22952], Miranda & Escala 2000:197 [ref. 24798], Bianco & Ketmaier 2001:197 [ref. 26728], Almaça in Bănărescu & Bogutskaya 2003:287 [ref. 27353]). •Valid as Luciobarbus microcephalus (Almaça 1967) -- (Kottelat & Freyhof 2007:140 [ref. 29996], Levin et al. 2012:544 [ref. 33912], Doadrio et al. 2016:4 [ref. 34185], Doadrio et al. 2016:5 [ref. 34978]). Current status: Valid as Luciobarbus microcephalus (Almaça 1967). Cyprinidae: Barbinae. Distribution: Spain and Portugal. Habitat: freshwater.