Fukuda, M. V., J. M. M. Nogueira, and G. S. Martín. “Eusyllinae and ‘Incertae sedis’ Syllids (Annelida: Syllidae) from South America, With a New Species from Brazil and a New Combination for a Peruvian Species”. Zootaxa, vol. 3936, no. 4, Mar. 2015, pp. 507–537, doi:10.11646/zootaxa.3936.4.3.