McCowin, M., Feehery, C., and G. Rouse. (2020). Spanning the depths or depth-restricted: Three new species of Bathymodiolus (Bivalvia, Mytilidae) and a new record for the hydrothermal vent Bathymodiolus thermophilus at methane seeps along the Costa Rica margin. Deep Sea Research Part I: Oceanographic Research Papers, doi: 10.1016/j.dsr.2020.103322.