Salas-Montiel, R., Phillips, A. J., de Leon, G. P.-P., & Oceguera-Figueroa, A. (2014). Description of a new leech species of Helobdella (Clitellata: Glossiphoniidae) from Mexico with a review of Mexican congeners and a taxonomic key. Zootaxa, 3900(1), 77–94. https://doi.org/10.11646/zootaxa.3900.1.4