History of
  Turbellarian Research
      compiled by Steve Schilling
  Gieysztoria acariaia Marcus, 1946
  (Gieysztoria) acariaia Marcus, 1946
  Plagiostomum acoluthum Marcus, 1948
  Haploposthia albiventer Marcus, 1954
  Kuma albiventer (Marcus, 1954)
  Polycystidinae Alcha Marcus, 1949
  Notoplanides alcha Marcus & Marcus, 1968
  Stylochoplana alcha (Marcus & Marcus, 1968)
  Notoplanides alcha Marcus & Marcus, 1968
  Catenula alitha Marcus, 1945
  Latocestinae Alleena Marcus, 1947
  Latocestidae I Alleena Marcus, 1947
Vorticeros cyrtum amoma Marcus, 1947
  Stenostomum amphotum Marcus, 1945
  Gnesiocerotidae Amyris Marcus & Marcus, 1968
  Faubelidae Amyris Marcus & Marcus, 1968
  Anokkostenostomum anatirostrum (Marcus, 1945)
  Stenostomum anatirostrum Marcus, 1945
  Notoplana annula Marcus & Marcus, 1968
  Notoplana annula Marcus & Marcus, 1968
  Monocelis anta Marcus, 1954
  Faerlea antora Marcus, 1952
  Dugesia arndti Marcus, 1946
  Girardia arndti Marcus, 1946
  Lenopharynginae Artinga Marcus, 1948
  Cheliplana asica Marcus, 1952
  Nematoplana asita Marcus, 1950
  Geoplana astraea Marcus, 1951
  Pasipha astraea (Marcus, 1951)
  Dugesia astrocheta Marcus, 1953
  Plicastoma astrum Marcus, 1947
  Proschizorhynchella atopus (Marcus, 1950)
  Schizorhynchoides atopus (Marcus, 1950)
  Proschizorhynchus atopus Marcus, 1950
  Brinkmanniella augusti Marcus, 1951
  Stylochoplana aulica Marcus, 1947
  Alloioplana aulica (Marcus, 1947)
  Stylochoplana aulica Marcus, 1947
  Plagiostomum autectum Marcus, 1948
  Wydula avia Marcus, 1954
  Geoplana aymara Du Bois-Reymond Marcus, 1951
  Heroplana bayeri (Marcus & Marcus, 1968)
  Stylochoplana bayeri Marcus & Marcus, 1968
  Stylochoplana bayeri Marcus & Marcus, 1968
  Kuma belca Marcus, 1952
  Gieysztoria bellis Marcus, 1946
  (Gieysztoria) bellis Marcus, 1946
  Choeradoplana bilix Marcus, 1951
  Acerotisa bituna Marcus, 1947
  Acerotisa bituna Marcus, 1947
  Dugesiidae Bopsula Marcus, 1946
  Macrostomum brasiliense Marcus, 1952
  Archimacrostomum brasiliensis (Marcus, 1952)
Macrostomum appendiculatum (1) brasiliensis Marcus, 1952
  Sabazius brattstroemi Marcus, 1954
  Phaenocora bresslaui Marcus, 1946
  Kuma brevicauda Marcus, 1950
  Microstomum breviceps Marcus, 1951
  Mesostoma brincki Marcus, 1970
  Phaenocora brincki Marcus & Marcus, 1959
  Prorhynchus brincki Marcus, 1955
  Latocestus callizona (Marcus, 1947)
  Alleena callizona Marcus, 1947
  Alleena callizona Marcus, 1947
  Puiteca camica Du Bois-Reymond Marcus, 1955
  Acmostomum canarium Marcus, 1947
  incertae sedis Candimba Marcus, 1949
  Stylochoplaninae Candimba Marcus, 1949
  Geoplana cantuta Du Bois-Reymond Marcus, 1951
  Vaillantiella caribumba Marcus, 1957
  Plicastoma carvalhoi Marcus, 1947
  Heterochaerus carvalhoi (Marcus, 1952)
  Amphiscolops carvalhoi Marcus, 1952
  Pericelis cata Marcus & Marcus, 1968
  Pericelis cata Marcus & Marcus, 1968
  Stylochus catus (Du Bois-Reymond Marcus, 1958)
  Stylochus catus Du Bois-Reymond Marcus, 1958
  Imogine catus (Du Bois-Reymond Marcus, 1958)
  Geoplana caya Du Bois-Reymond Marcus, 1951
  Adenopea cenata (Du Bois-Reymond Marcus, 1955)
  Convoluta cenata Du Bois-Reymond Marcus, 1955
  Geoplana chalona Du Bois-Reymond Marcus, 1951
  Geoplana chilihua Du Bois-Reymond Marcus, 1958
  Dugesia chilla Marcus, 1954
  Girardia chilla (Marcus, 1954)
  Othelosoma chinum Marcus, 1953
  Plagiostomum chionoecetis Marcus, 1948
  Pseudoceros chloreus Marcus, 1949
  Pseudoceros chloreus Marcus, 1949
  Phaenocora chloroxantha Marcus, 1946
  Catenulida Chordariidae Marcus, 1945
  Chordariidae Chordarium Marcus, 1945
  Geoplana chulpa Du Bois-Reymond Marcus, 1951
  Monocelis cirrhosa Marcus, 1949
  Plagiostomum clusum Marcus, 1951
  Geocentrophora coeca Marcus, 1944
  Othelosoma conyum Marcus, 1953
  Anokkostenostomum corderoi (Marcus, 1945)
  Stenostomum corderoi Marcus, 1945
  Leucolesma corderoi Marcus, 1948
  Chordarium cryptum Marcus, 1945
  Tabaota curiosa Marcus, 1950
  Triadomma curvum Marcus, 1949
  Triadomma curvum Marcus, 1949
  Triadomma curvum Marcus, 1949
  Prosthiostomum cynarium Marcus, 1950
  Prosthiostomum cynarium Marcus, 1950
  (Gieysztoria) cypris Marcus, 1946
  Gieysztoria cypris Marcus, 1946
  Vorticeros cyrtum Marcus, 1947
  Kirgisellinae Daelja Marcus, 1951
  Pseudactinoposthia daena (Marcus, 1954)
  Mecynostomum daenum Marcus, 1954
  Procerodes dahli Marcus & Marcus, 1959
  Vorticeros dahli Marcus, 1954
  Catenulidae Dasyhormus Marcus, 1945
  Utelga deina Marcus, 1949
  Macrostomum delphax Marcus, 1946
  Haplocelis dichona (Marcus, 1954)
  Otocelis dichona Marcus, 1954
  Strongylostoma dicorymbum Marcus, 1946
  Uteriporinae Dinizia Marcus, 1947
  Trigonostomum divae Marcus, 1948
  Notoplana divae Marcus, 1948
  Pentaplana divae Marcus, 1949
  Itaipusa divae Marcus, 1949
  Candimba divae Marcus, 1949
  Stylochoplana divae Marcus, 1947
  Hoploplana divae Marcus, 1950
  Pentaplana divae Marcus, 1949
  Boninia divae Marcus & Marcus, 1968
  Geoplana divae Marcus, 1951
  Dinizia divae Marcus, 1947
  Conaperta divae Marcus, 1950
  Notoplana divae Marcus, 1948
  Armatoplana divae (Marcus, 1947)
  Stylochoplana divae Marcus, 1947
  Pseudaphanostoma divae Marcus, 1952
  Boninia divae Marcus & Marcus, 1968
  Obama divae (Marcus, 1951)
  Stylochoplana divae (Marcus, 1949)
  Convoluta divae Marcus, 1950
  Hoploplana divae Marcus, 1950
  Aphanostoma divae (Marcus, 1950)
  Thallagus divae Marcus, 1951
  Minona divae Marcus, 1951
  Candimba divae Marcus, 1949
  Isodiametra divae (Marcus, 1950)
  Geoplana duca Marcus, 1951
  Dugesia ectophysa Marcus, 1953
  Plagiostomum elachisterum (Marcus, 1948)
  Haploophorum elachisterum Marcus, 1948
  Paraustrorhynchus elixus (Marcus, 1954)
  Austrorhynchus elixus Marcus, 1954
  Promonotus erinaceus Marcus, 1950
  Childia etium (Marcus, 1954)
  Paraphanostoma etium Marcus, 1954
  Philosyrtis eumeca Marcus, 1950
  Ilyplanoidea Euplanidae Marcus & Marcus, 1966
  Nonatona euscopa Marcus, 1952
  Nonatona euscopa Marcus, 1952
  Bothromesostoma evelinae Marcus, 1946
  Artinga evelinae Marcus, 1948
  Haloplanella evelinae Marcus, 1954
  Chordarium evelinae Marcus, 1945
  Triadomma evelinae Marcus, 1947
  Togarma evelinae Marcus, 1949
  Callioplana evelinae Marcus, 1954
  Minona evelinae Marcus, 1946
  Phaenocora evelinae Marcus, 1946
  Rhynchoscolex evelinae Marcus, 1945
  Catenula evelinae (Marcus, 1945)
  Mesostoma evelinae Marcus, 1955
  Obama evelinae (Marcus, 1951)
  Marcomesostoma evelinae (Marcus, 1955)
  Enchiridium evelinae Marcus, 1949
  Pseudobiceros evelinae (Marcus, 1950)
  Pseudoceros evelinae Marcus, 1950
  Callioplana evelinae Marcus, 1954
  Stenostomum evelinae Marcus, 1945
  Suomina evelinae Marcus, 1945
  Adenoplana evelinae Marcus, 1950
  Triadomma evelinae Marcus, 1947
  Anokkostenostomum evelinae Marcus, 1945
  Theama evelinae Marcus, 1949
  Stylochoplana evelinae Marcus, 1952
  Itaipusa evelinae (Marcus, 1954)
  Amphiscolops evelinae Marcus, 1947
  Hallangia evelinae Marcus, 1952
  Neppia evelinae Marcus, 1955
  Pseudobiceros evelinae (Marcus, 1950)
  Nadina evelinae (Marcus, 1952)
  Pseudmecynostomum evelinae (Marcus, 1948)
  Mecynostomum evelinae Marcus, 1948
  Macrostomum evelinae Marcus, 1946
  Eumecynostomum evelinae (Marcus, 1948)
  Itaspis evelinae Marcus, 1952
  Enchiridium evelinae Marcus, 1949
  Pseudoceros evelinae Marcus, 1950
  Myozona evelinae Marcus, 1949
  Pucelis evelinae Marcus, 1947
  Othelosoma evelinae Marcus, 1970
  Syndisyrinx evelinae (Marcus, 1968)
  Puzostoma evelinae Marcus, 1950
  Triadomma evelinae Marcus, 1947
  Reinhardorhynchus evelinae (Marcus, 1954)
  Notocomplana evelinae (Marcus, 1947)
  Dugesia evelinae Marcus, 1955
  Pucelis evelinae Marcus, 1947
  Plagiostomum evelinae Marcus, 1946
  Cura evelinae Marcus, 1955
  Syndesmis evelinae Marcus, 1968
  Anoplodium evelinae Marcus, 1949
  Tuilica evelinae Marcus, 1951
  Utsurus evelinae Marcus, 1954
  Nygulgus evelinae Marcus, 1954
  Gieysztoria evelinae Marcus, 1946
  Lurus evelinae Marcus, 1950
  Baicalellia evelinae Marcus, 1946
  (Gieysztoria) evelinae Marcus, 1946
  Geoplana evelinae Marcus, 1951
  Urastoma evelinae Marcus, 1951
  Adenoplana evelinae Marcus, 1950
  Alcha evelinae Marcus, 1949
  Bopsula evelinae Marcus, 1946
  Enterostomula evelinae Marcus, 1948
  Interplana evelinae (Marcus, 1952)
  Theama evelinae Marcus, 1949
  Stylochoplana evelinae Marcus, 1952
  Miava evelinae Marcus, 1954
  Nerpa evelinae Marcus, 1948
  Tiddles evelinae Marcus, 1963
  Rhodax evelinae Marcus, 1946
  Allostoma evelinae (Marcus, 1948)
  Kata evelinae Marcus, 1949
  Rosmarium evelinae Marcus, 1950
  Mesostoma ewerum Du Bois-Reymond Marcus, 1951
  Stylostomum felinum Marcus, 1954
  Stylostomum felinum Marcus, 1954
Paulodora felis felis (Marcus, 1954)
  Paulodora felis (Marcus, 1954)
  Polycystis felis Marcus, 1954
  Paulodora fredelyna (Marcus, 1948)
  Zuccaria fredelyna Marcus, 1948
  Lurymare gabriellae (Marcus, 1949)
  Microstomum gabriellae Marcus, 1950
  Archiloa gabriellae (Marcus, 1949)
  Geoplana gabriellae Du Bois-Reymond Marcus, 1951
  Cycloporus gabriellae Marcus, 1950
  Kalyla gabriellae Marcus, 1951
  Prosthiostomum gabriellae Marcus, 1949
  Macrostomum gabriellae Marcus, 1949
  Lurymare gabriellae (Marcus, 1949)
  Mesoda gabriellae Marcus, 1949
  Enchiridium gabriellae (Marcus, 1949)
  Polycystis gabriellae (Marcus, 1948)
  Zuccaria gabriellae Marcus, 1948
  Cycloporus gabriellae Marcus, 1950
  Vatapa gabriellae Marcus, 1948
  Prosthiostomum gabriellae Marcus, 1949
  Microplana garavi Du Bois-Reymond Marcus, 1957
  Notogynaphallia garua (Du Bois-Reymond Marcus, 1951)
  Geoplana garua Du Bois-Reymond Marcus, 1951
  Amphiscolops gemelliporus Marcus, 1954
  Prosthiostomum gilvum Marcus, 1950
  Prosthiostomum gilvum Marcus, 1950
  Othelosoma gnaum Marcus, 1955
  Leptoplanoidea Gnesiocerotidae Marcus & Marcus, 1966
  Planoceroidea Gnesiocerotidae Marcus & Marcus, 1968
  Geoplana goetschi Marcus, 1951
  Rhynchodemus graetzi Du Bois-Reymond Marcus, 1953
  Plagiostomidae Haploophorum Marcus, 1948
  Plagiostomum haploposthia Marcus, 1948
  Microplana harea Marcus, 1953
  Placorhynchidae Harsa Marcus, 1951
  Cratera hina (Marcus, 1951)
  Geoplana hina Marcus, 1951
  (Acanthozoon) hispidum Du Bois-Reymond Marcus, 1955
  Acanthozoon hispidum (Du Bois-Reymond Marcus, 1955)
  Acanthozoon hispidus Du Bois-Reymond Marcus, 1955
  Pseudoceros hispidus Du Bois-Reymond Marcus, 1955
Notoplana australis huina Marcus, 1954
  Hylocelis huina (Marcus, 1954)
Notoplana australis huina (form) Marcus, 1954
  Amyris hummelincki Marcus & Marcus, 1968
  Amyris hummelincki Marcus & Marcus, 1968
  Othelosoma huntum Marcus, 1955
  Cylindrostoma hyljeum Marcus, 1952
  Euplana hymanae Marcus, 1947
  Gieysztoria hymanae Marcus, 1946
  (Gieysztoria) hymanae Marcus, 1946
  Euplana hymanae Marcus, 1947
  Dugesia hypoglauca Marcus, 1948
  Girardia hypoglauca Marcus, 1948
  Cylindrostoma ibeenum Marcus, 1950
  Haloplanella ibla Marcus, 1952
  Gigantea idaia (Du Bois-Reymond Marcus, 1951)
  Geoplana idaia Du Bois-Reymond Marcus, 1951
  Haplogonaria idia (Marcus, 1954)
  Mecynostomum idium Marcus, 1954
  Cryptocelidinae Igluta Marcus & Marcus, 1968
  Notoplanidae Igluta Marcus & Marcus, 1968
  Cryptocelidinae Igluta Marcus & Marcus, 1968
  Stylochus (Imogine) Marcus & Marcus, 1968
  Microplaninae Incapora Du Bois-Reymond Marcus, 1953
  Gieysztoria intricata Marcus, 1946
  (Gieysztoria) intricata Marcus, 1946
  Geoplana irua Du Bois-Reymond Marcus, 1958
  Stylochus isifer Du Bois-Reymond Marcus, 1955
  (Distylochus) isifer (Du Bois-Reymond Marcus, 1955)
  Stylochus isifer Du Bois-Reymond Marcus, 1955
  Minona itaipus (Marcus, 1950)
  Peraclistus itaipus (1) Marcus, 1950
  Koinocystididae Itaipusa Marcus, 1949
  Hoploplanidae Itannia Marcus, 1947
  Leptoplanidae Itannia Marcus, 1947
  Otoplaninae Itaspis Marcus, 1952
  Kirgisellinae Kalyla Marcus, 1951
  Otoplaninae Kata Marcus, 1949
  Haploposthiidae Kuma Marcus, 1950
  Proporidae Kuma Marcus, 1950
  Plagiostomum kurrum Marcus, 1951
  Oneppus lacus Marcus, 1954
  Thysanozoon lagidium Marcus, 1949
  Thysanozoon lagidium Marcus, 1949
  Geoplana lama Du Bois-Reymond Marcus, 1957
  Geoplana lambaya Du Bois-Reymond Marcus, 1958
  Plagiostomum lapinum Marcus, 1952
  Notoplana lapunda Marcus & Marcus, 1968
  Notocomplana lapunda (Marcus & Marcus, 1968)
  Notoplana lapunda Marcus & Marcus, 1968
  Geoplana lareta Du Bois-Reymond Marcus, 1958
  Dasyhormus lasius Marcus, 1945
  Armatoplana leptalea (Marcus, 1947)
  Stylochoplana leptalea Marcus, 1947
  Stylochoplana leptalea Marcus, 1947
  Leptoplanidae Leptoplaninae Marcus, 1947
  Kata leroda Marcus, 1950
  Catenula leuca Marcus, 1945
  Acerotisa leuca Marcus, 1947
  Acerotisa leuca Marcus, 1947
  Chordarium leucanthum Marcus, 1945
  Uteriporinae Leucolesma Marcus, 1948
  Geoplana leucophryna Marcus, 1951
  Geoplana libbieae Du Bois-Reymond Marcus, 1958
  Amaga libbieae (Du Bois-Reymond Marcus, 1958)
  Cryptocelis lilianae Marcus & Marcus, 1968
  Cryptocelis lilianae Marcus & Marcus, 1968
  Pseudoceros liparus Marcus, 1950
  Pseudoceros liparus Marcus, 1950
  Dasyhormus lithophorus Marcus, 1945
  Luridae Lurus Marcus, 1950
  Prosthiostomidae Lurymare Marcus & Marcus, 1968
  Prosthiostomidae Lurymare Marcus & Marcus, 1968
Pseudoceros flavomarginatus luteomarginatus Marcus, 1950
  Meidiama lutheri Marcus, 1946
  Yagua lutheri Du Bois-Reymond Marcus, 1958
  Karlingia lutheri (Marcus, 1948)
  Dolichomacrostomum lutheri Marcus, 1948
  Byrsophlebs lutheri (Marcus, 1952)
  Maehrenthalia lutheri Marcus, 1952
  Stylochoplana lynca Du Bois-Reymond Marcus, 1958
  Parviplana lynca (Du Bois-Reymond Marcus, 1958)
  Stylochoplana lynca Du Bois-Reymond Marcus, 1958
  Symsagittifera macnaei (Du Bois-Reymond Marcus, 1957)
  Pseudohaplogonaria macnaei (Du Bois-Reymond Marcus, 1957)
  Convoluta macnaei Du Bois-Reymond Marcus, 1957
  Catenula macrura Marcus, 1945
  Neosergia mancala (Marcus & Marcus, 1957)
  Sergia mancala Marcus & Marcus, 1957
  Rhynchodemus marfa Marcus, 1953
Rhynchodemus hectori marfa Marcus, 1953
  Neosergia maricola (Marcus, 1957)
  Sergia maricola Marcus, 1957
  Notoplana martae Marcus, 1948
  Schizorhynchoides martae Marcus, 1950
  Vannuccia martae Marcus, 1948
  Stylochus martae Marcus, 1947
  Schizochilus martae (Marcus, 1950)
  Notoplana martae Marcus, 1948
  (Distylochus) martae (Marcus, 1947)
  Stylochus martae Marcus, 1947
  Notocomplana martae (Marcus, 1948)
  Prosthiostomum matarazzoi Marcus, 1950
  Lurymare matarazzoi (Marcus, 1950)
  Polycystis matarazzoi (Marcus, 1948)
  Paulodora matarazzoi Marcus, 1948
  Prosthiostomum matarazzoi Marcus, 1950
  Euprosthiostomum matarazzoi (Marcus, 1950)
  Lurymare matarazzoi (Marcus, 1950)
  Stenostomum materazzoi Marcus, 1949
  Phaenocelis medvedica Marcus, 1952
  Phaenocelis medvedica Marcus, 1952
  Phaenocelis medvedica Marcus, 1952
  Notoplana megala Marcus, 1952
  Notoplana megala Marcus, 1952
  Laqueusplana megala (Marcus, 1952)
  Pleioplana megala (Marcus, 1952)
Stenostomum grande megista Marcus, 1945
  Archimonocelididae Meidiama Marcus, 1946
  Promesostomidae Memyla Marcus, 1952
  Archiloinae Mesoda Marcus, 1949
  Palombiellinae Miava Marcus, 1954
  Minona mica Marcus, 1951
  Duplominona mica (Marcus, 1951)
  Notoplana micheli Marcus, 1949
  Notoplana micheli Marcus, 1949
  Haploposthia microphoca Marcus, 1950
  Prosthiostomum milcum Marcus & Marcus, 1968
  Prosthiostomum milcum Marcus & Marcus, 1968
  Minoninae Minona Marcus, 1946
  Plagiostomum mirabile Marcus, 1948
  Rhynchodemus misus Du Bois-Reymond Marcus, 1965
  Dugesia monomyoda Marcus, 1953
  Pseudoceros mopsus Marcus, 1952
  Phrikoceros mopsus (Marcus, 1952)
  Pseudoceros mopsus Marcus, 1952
  Euprosthiostomum mortenseni Marcus, 1948
  Dolichomacrostomum mortenseni Marcus, 1950
  Austromacrostomum mortenseni (Marcus, 1950)
  Euprosthiostomum mortensenii Marcus, 1948
  Parotoplana moya Marcus, 1949
Itannia ornata murna Du Bois-Reymond Marcus, 1957
  ornata murva Du Bois-Reymond Marcus, 1957
  Einarhelmins mutsa (Marcus, 1952)
  Monoophorum mutsum Marcus, 1952
  Cylindrostoma myfflum Marcus, 1951
  Macrostomorpha Myozona Marcus, 1949
  Nematoplana naia Marcus, 1949
  Rhynchoscolex nanus Marcus, 1945
  Monocelidinae Necia Marcus, 1950
  Eurylepta neptis Du Bois-Reymond Marcus, 1955
  Eurylepta neptis Du Bois-Reymond Marcus, 1955
  Bdellourinae Nerpa Marcus, 1948
  Cylindrostoma netsicum Marcus, 1950
  Girardia nonatoi Marcus, 1946
  Plagiostomum nonatoi Marcus, 1948
  Dugesia nonatoi Marcus, 1946
  Latocestidae I Nonatona Marcus, 1952
  Latocestinae Nonatona Marcus, 1953
  Leptoplanoidea Notoplanidae Marcus & Marcus, 1966
  Stylochoplanidae Notoplanides Marcus & Marcus, 1968
  Pseudograffillinae Nygulgus Marcus, 1954
  Harsa obnixa Marcus, 1951
  Prolatocestus ocellatus (Marcus, 1947)
  Latocestus ocellatus Marcus, 1947
  Latocestus ocellatus Marcus, 1947
  Placorhynchidae Oneppus Marcus, 1952
  Itannia ornata Marcus, 1947
  Itannia ornata Marcus, 1947
  Aphanostoma orphinum Marcus, 1950
  Pseudokuma orphinum (Marcus, 1950)
  Umagillinae Ozametra Marcus, 1949
  Dugesia paeta (Marcus, 1955)
  Neppia paeta (Marcus, 1955)
  Cura paeta Marcus, 1955
  Euprosthiostomum pakium Marcus & Marcus, 1968
  Euprosthiostomum pakium Marcus & Marcus, 1968
  Notoplana palta Marcus, 1954
  Notocomplana palta (Marcus, 1954)
  Notoplana palta Marcus, 1954
  Ruanis pandula Marcus, 1952
  Childia pansa Marcus, 1950
  Promonotus pardus Marcus, 1954
  Monocelis pardus (Marcus, 1954)
  Olisthanella parva Marcus, 1946
  Geoplana pasipha Marcus, 1951
  Pasipha pasipha (Marcus, 1951)
  Polycystidinae Paulodora Marcus, 1948
  Geoplana pavani Marcus, 1951
  Phaenocelis peleca Marcus & Marcus, 1968
  Phaenocelis peleca Marcus & Marcus, 1968
  Phaenoplana peleca (Marcus & Marcus, 1968)
  Phaenocelis peleca Marcus & Marcus, 1968
  Haplogonaria pellita (Marcus, 1951)
  Mecynostomum pellitum Marcus, 1951
  Trigonoporinae Pentaplana Marcus, 1949
  Stylochocestidae Pentaplana Marcus, 1949
  Microplana perereca Marcus & Marcus, 1959
  Chordarium philum Marcus, 1945
  Plicastoma phocae Marcus, 1947
  Geoplana phocaica Marcus, 1951
  Paraba phocaica (Marcus, 1951)
  Memyla phocanella Marcus, 1952
  Macrostomum phocurum Marcus, 1954
  Geoplana pichuna Du Bois-Reymond Marcus, 1951
  Bothromesostoma pieti Marcus, 1960
  Rhynchodemus piptus Marcus, 1952
  Acerotisa piscatoria Marcus, 1947
  Eurylepta piscatoria (Marcus, 1947)
  Acerotisa piscatoria Marcus, 1947
  Monocelidinae Pistrix Marcus, 1951
  Rhynchoscolex platypus Marcus, 1945
  Notoplana plecta Marcus, 1947
  Notoplana plecta Marcus, 1947
  Kirgisellinae Pogaina Marcus, 1954
  Othelosoma polecatum Marcus, 1953
  Monocelididae Promonotinae Marcus, 1949
  Monocelis psilus (Marcus, 1954)
  Promonotus psilus Marcus, 1954
  Stylochoplaninae Pucelis Marcus, 1947
  Notoplanidae Pucelis Marcus, 1947
  Othelosoma pugum Marcus, 1953
  Cercyrini Puiteca Du Bois-Reymond Marcus, 1955
  Notoplana puma Marcus, 1954
  Notoplana puma Marcus, 1954
  Trisaccopharynx pusa (Marcus, 1952)
  Tangaroa pusa Marcus, 1952
  Rhynchoscolex pusillus Marcus, 1945
  Plagiostomidae Puzostoma Marcus, 1950
  Geoplana quagga Marcus, 1951
  Geoplana quenua Du Bois-Reymond Marcus, 1958
  Notoplana queruca Marcus & Marcus, 1968
  Notoplana queruca Marcus & Marcus, 1968
  Geoplana quichua Du Bois-Reymond Marcus, 1951
  Candimboides rabita (Marcus & Marcus, 1968)
  Armatoplana rabita (Marcus & Marcus, 1968)
  Candimba rabita Marcus & Marcus, 1968
  Candimba rabita Marcus & Marcus, 1968
  Candimboides rabita (Marcus & Marcus, 1968)
  Imogine refertus (Du Bois-Reymond Marcus, 1965)
  Stylochus refertus Du Bois-Reymond Marcus, 1965
  Stylochus refertus Du Bois-Reymond Marcus, 1965
  Plagiostomum remanei Marcus, 1954
  Microstomum rhabdotum Marcus, 1951
  Koinocystididae Rhinolasius Marcus, 1951
  Dimarcusidae Rhodax Marcus, 1946
  Girardia rincona (Marcus, 1954)
  Dugesia rincona Marcus, 1954
  Enterostomula ronis Marcus, 1954
  Scleraulophoridae Rosmarium Marcus, 1950
  Stenostomum rosulatum Marcus, 1945
  Typhloplaninae Ruanis Marcus, 1952
  Wallmapuplana ruca (Marcus, 1954)
  Amaga ruca (Marcus, 1954)
  Geoplana ruca (Marcus, 1954)
  Microplana ruca Marcus, 1954
  Othelosoma rudebecki Marcus, 1955
  Monocelidinae Sabazius Marcus, 1954
  Othelosoma saegeri Marcus, 1955
  Plagiostomum sagax Marcus, 1951
  Geoplana saima Du Bois-Reymond Marcus, 1951
  Cestoplana salar Marcus, 1949
  Cestoplana salar Marcus, 1949
  Procerodes sameha Marcus & Marcus, 1959
  Prosthiostomum sancum Du Bois-Reymond Marcus, 1965
  Prosthiostomum sancum Du Bois-Reymond Marcus, 1965
  Rhinolasius sartus Marcus, 1951
  Notoplana sawayai Marcus, 1947
  Catenula sawayai (Marcus, 1945)
  Suomina sawayai Marcus, 1945
  Notoplana sawayai Marcus, 1947
  Microdalyellia sawayai Marcus, 1946
  Archiloa scalopura (Marcus, 1949)
  Inaloa scalopura (Marcus, 1949)
  Monocelis scalopura Marcus, 1949
  Archiloa scalopus Marcus, 1949
  Girardia schubarti (Marcus, 1946)
  Neppia schubarti (Marcus, 1946)
  Dugesia schubarti (Marcus, 1946)
  Curtisia schubarti Marcus, 1946
  Rhynchodemus schubarti Du Bois-Reymond Marcus, 1955
  Cura schubarti (Marcus, 1946)
  Rhynchodemus scius Du Bois-Reymond Marcus, 1955
  Prolecithophora Scleraulophoridae Marcus, 1950
  Promesostoma scylax Marcus, 1952
  Daelja secuta Marcus, 1951
  Stylochoplana selenopsis Marcus, 1947
  Stylochoplana selenopsis Marcus, 1947
  Geoplana shapra Du Bois-Reymond Marcus, 1957
  Stylochus sixteni Marcus, 1947
  Stylochus sixteni Marcus, 1947
  Imogine sixteni Marcus, 1947
  Stylochoplana snadda Marcus & Marcus, 1968
  Stylochoplana snadda Marcus & Marcus, 1968
  Armatoplana snadda (Marcus & Marcus, 1968)
  Necia sopha Marcus, 1950
  Scleraulophoridae sp Marcus, 1954
  Macrostomum sp Marcus, 1954
  Rhynchodemus sp. Marcus, 1955
  Kontikia sp. Marcus & Marcus, 1959
  Rhynchodemus sp. Du Bois-Reymond Marcus, 1958
  Pseudoceros species (21) Marcus, 1949
  Pseudobiceros strigosus (Marcus, 1950)
  Pseudoceros strigosus Marcus, 1950
  Pseudoceros strigosus Marcus, 1950
  Pseudobiceros strigosus (Marcus, 1950)
  Stylochus (Stylochus) Marcus & Marcus, 1968
  Catenulidae Suomina Marcus, 1945
  Pogaina suslica (Marcus, 1951)
  Vejdovskya suslica Marcus, 1951
  Notocomplana syntoma (Marcus, 1947)
  Notoplana syntoma Marcus, 1947
  Notoplana syntoma Marcus, 1947
  Nematoplanidae Tabaota Marcus, 1950
  Monocelis tabira Marcus, 1950
  Cryptocelididae Taenioplaninae Marcus & Marcus, 1966
  Cryptocelididae Taenioplaninae Marcus & Marcus, 1966
  Geoplana takia Du Bois-Reymond Marcus, 1951
  Vannuccia talea Marcus, 1954
  Geoplana talpa Du Bois-Reymond Marcus, 1951
  Solenopharynginae Tangaroa Marcus, 1952
  Trapichorhynchus tapes Marcus, 1949
  Pasipha tapetilla (Marcus, 1951)
  Geoplana tapetilla Marcus, 1951
  Rhinepera targa Marcus, 1952
  Cheliplana targa (Marcus, 1952)
  Geoplana taxiarcha Marcus, 1951
  Cratera taxiarcha (Marcus, 1951)
  Cestoplana techa Du Bois-Reymond Marcus, 1957
  Cestoplana techa Du Bois-Reymond Marcus, 1957
  Pseudostomidae Thallagus Marcus, 1951
  Cylindrostomidae Thallagus Marcus, 1951
  Convoluta thauma Marcus, 1952
  Deuterogonaria thauma (Marcus, 1952)
  Theamatidae Theama Marcus, 1949
  Theamatidae Theama Marcus, 1949
  Planoceroidea Theamatidae Marcus, 1949
  Chromoplanoidea Theamatidae Marcus, 1949
  Leptoplanoidea Theamatidae Marcus, 1949
  Boninioidea Theamatidae Marcus, 1949
  Plagiostomum thelotrichum Marcus, 1951
  Pistrix thelura Marcus, 1951
  Mesoda thelura (Marcus, 1951)
  Archiloa thelura (Marcus, 1951)
  Gieysztoria therapaina Marcus, 1946
  (Gieysztoria) therapaina Marcus, 1946
  (Gieysztoria) thymara Marcus, 1946
  (Marcusiella) thymara (Marcus, 1946)
  Imogine ticus (Marcus, 1952)
  Stylochus ticus Marcus, 1952
  Stylochus ticus Marcus, 1952
  Maricola Tiddles Marcus, 1963
  Pogaina tifa Marcus, 1954
  Monoophorum tigacum Marcus, 1950
  Oneppus timius Marcus, 1952
  Paraproporus tinctus Marcus, 1952
  Pseudanaperus tinctus (Marcus, 1952)
  Marcusiola tinga (Du Bois-Reymond Marcus, 1957)
  Hofstenia tinga Du Bois-Reymond Marcus, 1957
  Cura tinga Marcus, 1955
  Neppia tinga (Marcus, 1955)
  Dugesia tinga (Marcus, 1955)
  Notoplana tipuca (Marcus & Marcus, 1968)
  Igluta tipuca Marcus & Marcus, 1968
  Igluta tipuca Marcus & Marcus, 1968
  Igluta tipuca Marcus & Marcus, 1968
  Nematoplanidae Togarma Marcus, 1949
  Kalyptorhynchia Toia Marcus, 1952
  Schizorhynchidae Trapichorhynchus Marcus, 1949
  Cryptocelidinae Triadomma Marcus, 1947
  Faubelidae Triadomma Marcus, 1947
  Cryptocelidinae Triadomma Marcus, 1947
  Microstomum trichotum Marcus, 1950
  Duplominona tridens (Marcus, 1954)
  Minona tridens Marcus, 1954
  Gieysztoria tridesma Marcus, 1946
  (Gieysztoria) tridesma Marcus, 1946
  Geoplana trina Marcus, 1951
  Xerapoa trina Marcus, 1951
  Pasipha trina (Marcus, 1951)
  Lenopharynx triops Marcus, 1951
  Gieysztoria trisolena Marcus, 1946
  (Gieysztoria) trisolena Marcus, 1946
  Plagiostomidae Tuilica Marcus, 1951
  Eurylepta turma Marcus, 1952
  Eurylepta turma Marcus, 1952
Stenostomum grande typica Marcus, 1945
  Amyris ujara Marcus & Marcus, 1968
  Amyris ujara Marcus & Marcus, 1968
  Microstomum ulum Marcus, 1950
  Gieysztoria uncia Marcus, 1946
  (Gieysztoria) uncia Marcus, 1946
  Zygantroplana ups Marcus & Harry, 1983
  Zygantroplana ups Marcus & Harry, 1983
  Fecampiida Urastomatidae Marcus, 1951
  Praeconvoluta urua (Marcus, 1954)
  Conaperta urua (Marcus, 1954)
  Convoluta urua Marcus, 1954
  Isodiametra urua (Marcus, 1954)
  Prosthiostomum utarum Marcus, 1952
  Lurymare utarum (Marcus, 1952)
  Prosthiostomum utarum Marcus, 1952
  Lurymare utarum (Marcus, 1952)
  Koinocystididae Utelga Marcus, 1949
  Koinocystididae Utsurus Marcus, 1954
  Coelogynoporidae Vannuccia Marcus, 1948
  Uteriporinae Vatapa Marcus, 1948
Macrostomum tuba verbekei Marcus & Marcus, 1957
  Isodiametra vexillaria (Marcus, 1948)
  Convoluta vexillaria Marcus, 1948
  Conaperta vexillaria (Marcus, 1948)
  Aphanostoma vexillaria (Marcus, 1948)
  Geoplana vicuna Du Bois-Reymond Marcus, 1957
  Geoplana vicuna Du Bois-Reymond Marcus, 1957
  Promonotus villacae Marcus, 1949
  Dolichoplana vircata Du Bois-Reymond Marcus, 1951
  Macrostomum viride (3) Marcus, 1946
  Othelosoma voleum Marcus, 1953
  Stylochoplana walsergia Marcus & Marcus, 1968
  Stylochoplana walsergia Marcus & Marcus, 1968
  Othelosoma wauzen Marcus, 1955
  Conaperta westbladi (Marcus, 1949)
  Aphanostoma westbladi (Marcus, 1949)
  Childia westbladi (Marcus, 1950)
  Isodiametra westbladi (Marcus, 1949)
  Convoluta westbladi Marcus, 1949
  Paraphanostoma westbladi Marcus, 1950
  Incapora weyrauchi Du Bois-Reymond Marcus, 1953
  Geoplana weyrauchi Du Bois-Reymond Marcus, 1951
  Pasipha weyrauchi (Du Bois-Reymond Marcus, 1951)
  Cura wimbimba Marcus, 1970
  Neppia wimbimba (Marcus, 1970)
  Dugesia wimbimba Marcus, 1970
  Promesostomidae Wydula Marcus, 1954
  Stylochoplana wyona Marcus & Marcus, 1968
  Stylochoplana wyona Marcus & Marcus, 1968
  Alloioplana wyona (Marcus & Marcus, 1968)
  Paraproporus xanthus Marcus, 1950
  Marcusia yagana (Marcus, 1954)
  Polycystis yagana Marcus, 1954
  Macrorhynchus yagana (Marcus, 1954)
  Protoplanellinae Yagua Du Bois-Reymond Marcus, 1958
  Microplana yaravi Du Bois-Reymond Marcus, 1957
  Toia ycia Marcus, 1952
  Zygantroplana yrsa Marcus & Marcus, 1968
  Ilyella yrsa (Marcus & Marcus, 1968)
  Zygantroplana yrsa Marcus & Marcus, 1968
  Polycystidinae Zuccaria Marcus, 1948

729 names, including those in new combination. (Max listing set to 900)

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