Sampling sites on the Caribbean and Pacific of Costa Rica where free-living and parasitic nematodes have been reported in literature. Dotted oval on the north side of Isla del Coco corresponds to more than 20 sampling points.

 
 
  Part of: Sánchez-Monge A, Cortés J (2024) Marine nematodes of Costa Rica: state of the art. In: Lipińska M, Lopez-Selva MM, Sierra JM (Eds) Biodiversity research in Central America. Neotropical Biology and Conservation 19(2): 319-331. https://doi.org/10.3897/neotropical.19.e115345