Morera Brenes, Bernal, and Julián Monge Nájera. “A New Giant Species of Placented Worm and the Mechanism by Which Onychophorans Weave Their Nets (Onychophora: Peripatidae)”. Revista de Biología Tropical 58, no. 4 (December 1, 2010): 1127–1142. Accessed February 8, 2023. https://revistas.ucr.ac.cr/index.php/rbt/article/view/5398.