Santos, E., M. Rubal, P. Veiga, C. M. C. da Rocha, and P. Fontoura. “Batillipes (Tardigrada, Arthrotardigrada) from the Portuguese Coast With the Description of Two New Species and a New Dichotomous Key for All Species”. European Journal of Taxonomy, no. 425, Apr. 2018, doi:10.5852/ejt.2018.425.