-84.62158, 9.03174: 15 Treatments

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Galapagomystides patricki   sp. nov.  Pearson, Kaila A. M. & Rouse, Greg W., 2022, Vampire Worms; A revision of Galapagomystides (Phyllodocidae, Annelida), with the description of three new species, Zootaxa 5128 (4), pp. 451-485 : 474-480 474-480
Cocculina methana   sp. nov.  Betters, Melissa J., Cortés, Jorge & Cordes, Erik E., 2024, New species and records of limpets (Mollusca, Gastropoda) from the Pacific Costa Rica Margin, ZooKeys 1214, pp. 281-324 : 281-324 281-324
Bathyacmaea levinae   sp. nov.  Betters, Melissa J., Cortés, Jorge & Cordes, Erik E., 2024, New species and records of limpets (Mollusca, Gastropoda) from the Pacific Costa Rica Margin, ZooKeys 1214, pp. 281-324 : 281-324 281-324
Alvinonemertes dariae   gen. et sp. nov.  Sagorny, Christina, Döhren, Jörn von, Rouse, Greg W. & Tilic, Ekin, 2022, Cutting the ribbon: bathyal Nemertea from seeps along the Costa Rica margin, with descriptions of 2 new genera and 9 new species, European Journal of Taxonomy 845 (1), pp. 132-174 : 153-155 153-155
Icospina   gen. nov.  Watson, Charlotte, Carvajal, J. Ignacio, Sergeeva, Nelly G., Pleijel, Fredrik & Rouse, Greg W., 2016, Free-living calamyzin chrysopetalids (Annelida) from methane seeps, anoxic basins, and whale falls, Zoological Journal of the Linnean Society 177 (4), pp. 700-719 : 710-713 710-713
Munidopsis cortesi   sp. nov.  Rodríguez-Flores, Paula C., Seid, Charlotte A., Rouse, Greg W. & Giribet, Gonzalo, 2023, Cosmopolitan abyssal lineages? A systematic study of East Pacific deep-sea squat lobsters (Decapoda: Galatheoidea: Munidopsidae), Invertebrate Systematics 37 (1), pp. 14-60 : 51-54 51-54
Lepetodrilus guaymasensis     Betters, Melissa J., Cortés, Jorge & Cordes, Erik E., 2024, New species and records of limpets (Mollusca, Gastropoda) from the Pacific Costa Rica Margin, ZooKeys 1214, pp. 281-324 : 281-324 281-324
Chernyshevia escarpiaphila   gen. et sp. nov.  Sagorny, Christina, Döhren, Jörn von, Rouse, Greg W. & Tilic, Ekin, 2022, Cutting the ribbon: bathyal Nemertea from seeps along the Costa Rica margin, with descriptions of 2 new genera and 9 new species, European Journal of Taxonomy 845 (1), pp. 132-174 : 149-152 149-152
Alvinonemertes christianeae   gen. et sp. nov.  Sagorny, Christina, Döhren, Jörn von, Rouse, Greg W. & Tilic, Ekin, 2022, Cutting the ribbon: bathyal Nemertea from seeps along the Costa Rica margin, with descriptions of 2 new genera and 9 new species, European Journal of Taxonomy 845 (1), pp. 132-174 : 156-157 156-157
Saphobranchia omorpha   sp. nov.  Salazar-Vallejo, Sergio I., 2020, Four new deep-water flabelligerid species from Pacific Costa Rica (Annelida Sedentaria, Flabelligeridae), Zootaxa 4885 (4), pp. 560-578 : 571-574 571-574
Pyrolycus jaco   sp. nov.  Frable, Benjamin W., Seid, Charlotte A., Bronson, Allison W. & Møller, Peter Rask, 2023, A new deep-sea eelpout of the genus Pyrolycus (Teleostei: Zoarcidae) associated with a hydrothermal seep on the Pacific margin of Costa Rica, Zootaxa 5230 (1), pp. 79-89 : 81-86 81-86
Saphobranchia ilys   sp. nov.  Salazar-Vallejo, Sergio I., 2020, Four new deep-water flabelligerid species from Pacific Costa Rica (Annelida Sedentaria, Flabelligeridae), Zootaxa 4885 (4), pp. 560-578 : 570-571 570-571
Pseudolepetodrilus costaricensis   sp. nov.  Betters, Melissa J., Cortés, Jorge & Cordes, Erik E., 2024, New species and records of limpets (Mollusca, Gastropoda) from the Pacific Costa Rica Margin, ZooKeys 1214, pp. 281-324 : 281-324 281-324
Tetrastemma strandae   sp. nov.  Sagorny, Christina, Döhren, Jörn von, Rouse, Greg W. & Tilic, Ekin, 2022, Cutting the ribbon: bathyal Nemertea from seeps along the Costa Rica margin, with descriptions of 2 new genera and 9 new species, European Journal of Taxonomy 845 (1), pp. 132-174 : 162-163 162-163
Saphobranchia canela   sp. nov.  Salazar-Vallejo, Sergio I., 2020, Four new deep-water flabelligerid species from Pacific Costa Rica (Annelida Sedentaria, Flabelligeridae), Zootaxa 4885 (4), pp. 560-578 : 568-569 568-569