Superorder;Order;Family;Genus;"Species valid name";"Original name";"Published distribution"
;Thermosbaenacea;Tulumellidae;Tulumella;"Tulumella unidens
               Bowman & Iliffe, 1988";"Tulumella unidens";"Less than 20 cenotes and caves in YUC and ROO."
Stygiomysida;Stygiomysidae;Stygiomysis;"Stygiomysis holthuisi
               (Gordon, 1958)";"Rhopalonurus holthuisi";"Anguilla, Bahamas, Lesser Antilles (France), Puerto Rico. From the YP: less than 30 cenotes and caves in YUC and ROO."
"Stygiomysis cokei
               Kallmeyer & Carpenter, 1996";"Stygiomysis cokei";"Less than 20 cenotes and caves in YUC and ROO."
Mysida;Mysidae;Antromysis;"Antromysis cenotensis
               Creaser, 1936*";"Antromysis cenotensis";"Widely distributed in the central and northern parts of the YP, known from several wells, cenotes and caves in YUC and ROO."
Leptanthuridae;Curasshantura;"Curassanthura yucatanensis
               Álvarez, Benítez, Iliffe & Villalobos, 2019";"Curassanthura yucatanensis";"Cenote Nohoch Nah Chich (ROO), Cenote Chen Ha (YUC), Cenote Dzonotilá (YUC)"
Peracarida;Isopoda;Cirolanidae;Cirolana;"Cirolana yunca
               (Botosaneanu & Iliffe, 2000)*";"Haptolana yunca";"Cenotes Sabak Ha, Tres Oches, X’baba, Chihuo Hol (all in YUC)"
"Cirolana yucatana
               Botosaneanu & Iliffe, 2000*";"Cirolana (Anopsilana) yucatana";"Cenote Dzonotilá (YUC)"
Creaseriella;"Creaseriella anops
               (Creaser, 1936)*";"Cirolana anops";"Known from numerous caves and cenotes in YUC and ROO, and a well in CAM."
Haptolana;"Haptolana bowmani
               Botosaneanu & Iliffe, 1997*";"Haptolana bowmani";"Grutas de Tzab-Nah, Cenotes Kambul, Mucuyché and Yuncú (all in YUC)"
Yucatalana;"Yucatalana robustispina
               Botosaneanu & Iliffe, 1999*";"Yucatalana robustispina";"Less than 20 cenotes and caves in YUC."
Amphipoda;Hadziidae;Mayaweckelia;"Mayaweckelia cenoticola
               Holsinger, 1977*";"Mayaweckelia cenoticola";"Less than 20 cenotes and caves in YUC, ROO and CAM."
"Mayaweckelia troglomorpha
               Angyal, 2018*";"Mayaweckelia troglomorpha";"Less than 20 cenotes and caves in YUC."
Tuluweckelia;"Tuluweckelia cernua
               Holsinger, 1990";"Tuluweckelia cernua";"Some cenotes and caves in Yucatan and Quintana Roo."
Eucarida;Decapoda;Atydae;Typhlatya;"Typhlatya pearsei
               Creaser, 1936*";"Typhlatya pearsei";"Widely distributed in cenotes and caves in YUC, ROO and CAM."
"Typhlatya mitchelli
               H.H.III Hobbs & H.H.Jr. Hobbs, 1976*";"Typhlatya mitchelli";"Widely distributed in cenotes and caves in YUC and ROO."
"Typhlatya dzilamensis
               Álvarez, Iliffe & Villalobos, 2005*";"Typhlatya dzilamensis";"Less than 20 cenotes and caves in YUC and ROO."
Palaemonidae;Creaseria;"Creaseria morleyi
               (Creaser, 1936)*";"Palaemon morleyi";"Widely distributed in cenotes and caves in YUC, ROO and CAM."