Microphis lineatus (Kaup 1856) . Opossum Pipefish; Pez Pipa Culebra

Vouchers: LSUMZ 15310 (1), 15321 (2), 15337 (14), 15356 (3) and 15375 (1); other collections: IBUNAM 13846 (1) and UF 233188 (1). Distribution: Western Atlantic Ocean; from New Jersey, USA, to southern Brazil; entering estuaries and littoral lagoons and ascending river courses; (Nicaragua) Co, UI, WK, Pr, GM, KP, Es, BF, IM and To (Atlantic); 0–10 masl; Per, Dia, Amp. Occurrence and conservation status: Nat; LC (2019), population trend unknown. Literature: Villa (1982: 152; detailed description, including illustrations and an identification key, and information on distribution and ecology), van den Berghe (2015: 47, as Oostethus brachyurus (Bleeker 1854) — misidentification; listed, including an illustration and information on distribution and ecology), Robertson & Van Tassell (2019: 972; detailed description, including illustrations, and information on distribution, with a map, and ecology) and Angulo (2021: 32; listed, including information on distribution).