Fishes from the Tirimbina Biological Reserve, La Virgen de Sarapiquí, Heredia, Costa Rica Author Angulo, Arturo Author Naranjo-Elizondo, Beatriz Author Rojas, Emmanuel Author Ley-López, Juan Manuel text Check List 2017 2017-10-27 13 5 683 702 http://dx.doi.org/10.15560/13.5.683 journal article 10.15560/13.5.683 1809-127X (4) Roeboides bouchellei Fowler 1923: 25 ; Crystal tetra (En), Sardinilla (Sp) Figure 2D Body moderately elongate and moderately deep, strongly compressed; snout length usually shorter than the eye diameter; both jaws of equal length, not enlarged; 2 pairs of external teeth on premaxillary; nape concave; fins without strong spines; a single dorsal fin; adipose fin present, its base shorter than the base of the dorsal fin; anal fin very long with 42–50 rays; caudal fin forked; general coloration yellowish silver to almost transparent, darker dorsally, usually greenish yellow-green, and paler, usually pearl white, ventrally; fins usually transparent, yellowish (or light orange) in some specimens, and with black margins; maximum body length ca 105 mm SL.