Fishes from the Tirimbina Biological Reserve, La Virgen de Sarapiquí, Heredia, Costa Rica Angulo, Arturo Naranjo-Elizondo, Beatriz Rojas, Emmanuel Ley-López, Juan Manuel Check List 2017 2017-10-27 13 5 683 702 7B7DM Bloch 1795: 87 Bloch 87 1795 [863,1318,593,617] Actinopterygii Synbranchidae Synbranchus Animalia Synbranchiformes 8 691 Chordata species marmoratus   Figure 4E Body elongate, eel-like; scales absent; pectoral, pel- vic and caudal fins absent; dorsal and anal fins vestigial (reduced to a rayless ridge); general coloration grayish brown or yellowish brown, darker dorsally and paler ventrally, usually with dark speckles of variable size ven- trally; maximum body length ca 1500 mmSL.