Solis-Marin, F.A., Alvarado, J.J., Conejeros-Vargas, C.A. and Caballero-Ochoa, A.A. 2020. Pentamera fonsecae n. sp. a new species of sea cucumber from the Pacific coast of Costa Rica (Holothuroidea: Dendrochirotida: Thyonidae). Zootaxa. 4878, 3 (Nov. 2020), 581–588. DOI:https://doi.org/10.11646/zootaxa.4878.3.9.