limulus, Eurycheilichthys Reis [R. E.] & Schaefer [S. A.] 1998:15, Fig. 7 [American Museum Novitates No. 3254; ref. 23691] Rio Jacuí on road RS-010, between Marau and Passo Fundo, 28°18'S, 52°18'W, Rio Grande do Sul State, Brazil. Holotype: MCP 20283. Paratypes: ANSP 168965 (28, 5 c&s); MCP 13086 (48, 2 c&s), 14528 (1). Type catalog: Ferraris 2007:236 [ref. 29155]. •Valid as Eurycheilichthys limulus Reis & Schaefer 1998 -- (Isbrücker 2001:27 [ref. 25653], Isbrücker 2002:15 [ref. 27178], Schaefer in Reis et al. 2003:322 [ref. 27061], Ferraris 2007:236 [ref. 29155], Bertaco et al. 2016:417 [ref. 34561], Reis 2017:[6] [ref. 35226], Delapiewe et al. 2023:2 [ref. 40645]). Current status: Valid as Eurycheilichthys limulus Reis & Schaefer 1998. Loricariidae: Hypoptopomatinae. Distribution: South America: upper Jacuí River drainage (Rio Grande do Sul State, Brazil). Habitat: freshwater.