-84.306, 8.92: 12 Treatments

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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
Tubulanus lutescens     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 : 142-144 142-144
Nymphaster diomedeae     Mah, Christopher L., 2016, Deep-sea (> 1000 m) Goniasteridae (Valvatida; Asteroidea) from the North Pacific, including an overview of Sibogaster, Bathyceramaster n. gen. and three new species, Zootaxa 4175 (2), pp. 101-141 : 123-126 123-126
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
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
Paralepetopsis variabilis   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 sundbergi   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 : 159-161 159-161
Alvinocaris costaricensis   sp. nov.  Martin, Joel W., Wall, Adam R., Shank, Tim, Cha, Harim, Seid, Charlotte A. & Rouse, Greg W., 2018, A new species of Alvinocaris (Crustacea: Decapoda: Caridea: Alvinocarididae) from Costa Rican methane seeps, Zootaxa 4504 (3), pp. 418-430 : 420-428 420-428
Tetrastemma polyakovae   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 : 161-162 161-162
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
Pyropelta corymba     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
Lamispina polycerata   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 : 562-564 562-564