Description of Gastrophryne elegans (Boulenger, 1882) tadpole from the rainforest of Los Tuxtlas, Veracruz, Mexico - Jiménez-Arcos, Víctor H.; Calzada-Arciniega, Rafael Alejandro; Cortés-Ortiz, Bruno; Gómez-Hurtado, C. Marisol; Blair, Christopher (Zootaxa, 2024)