Cheliplana asica Marcus, 1952 (original description)
Cheliplana caeca Meixner, 1938 (additional source)
Itaspis Marcus, 1952 (original description)
Itaspis evelinae Marcus, 1952 (original description)
Macrostomum brasiliense Marcus, 1952 (original description)
Maehrenthalia lutheri Marcus, 1952 accepted as Byrsophlebs lutheri (Marcus, 1952) Karling, 1985 (original description)
Memyla Marcus, 1952 (original description)
Memyla phocanella Marcus, 1952 (original description)
Oneppus Marcus, 1952 (original description)
Oneppus timius Marcus, 1952 (original description)
Phrikoceros mopsus (Marcus, 1952) (original description)
Promesostoma bilineatum Pereyaslawzewa, 1892 (additional source)
Promesostoma scylax Marcus, 1952 (original description)
Prosthiostomum utarum Marcus, 1952 (original description)
Rhinepera targa Marcus, 1952 accepted as Cheliplana targa (Marcus, 1952) Karling, 1983 (original description)
Stylochus ticus Marcus, 1952 (original description)
Tangaroa Marcus, 1952 accepted as Trisaccopharynx Karling, 1940 (original description)
Tangaroa pusa Marcus, 1952 accepted as Trisaccopharynx pusa (Marcus, 1952) Ehlers, 1972 (original description)
Toia Marcus, 1952 (original description)
Toia ycia Marcus, 1952 (original description)

Brazil for Anisorhynchodemus pellucidus (Graff, 1899) 
Brazil for Cheliplana asica Marcus, 1952 
Brazil for Cheliplana asica Marcus, 1952 
Brazil for Cheliplana asica Marcus, 1952 
Brazil for Convoluta thauma Marcus, 1952 
Brazil for Convoluta thauma Marcus, 1952 
Brazil for Cylindrostoma hyljeum Marcus, 1952 
Brazil for Faerlea antora Marcus, 1952 
Brazil for Geoplana (Geoplana) vaginuloides (Darwin, 1844) Schultze, 1856 
Brazil for Geoplana (Geoplana) vaginuloides (Darwin, 1844) Schultze, 1856 
Brazil for Hallangia evelinae Marcus, 1952 
Brazil for Haloplanella ibla Marcus, 1952 
Brazil for Harsa obnixa Marcus, 1951 
Brazil for Heterochaerus carvalhoi (Marcus, 1952) 
Brazil for Heterochaerus carvalhoi (Marcus, 1952) 
Brazil for Heterochaerus carvalhoi (Marcus, 1952) 
Brazil for Itaspis evelinae Marcus, 1952 
Brazil for Itaspis evelinae Marcus, 1952 
Brazil for Kuma belca Marcus, 1952 
Brazil for Macrostomum appendiculatum brasiliensis Marcus, 1952 
Brazil for Macrostomum appendiculatum brasiliensis Marcus, 1952 
Brazil for Maehrenthalia lutheri Marcus, 1952 
Brazil for Maehrenthalia lutheri Marcus, 1952 
Brazil for Maehrenthalia lutheri Marcus, 1952 
Brazil for Memyla phocanella Marcus, 1952 
Brazil for Monoophorum mutsum Marcus, 1952 
Brazil for Oneppus timius Marcus, 1952 
Brazil for Paraproporus tinctus Marcus, 1952 
Brazil for Plagiostomum lapinum Marcus, 1952 
Brazil for Promesostoma scylax Marcus, 1952 
Brazil for Pseudaphanostoma divae Marcus, 1952 
Brazil for Pseudoceros mopsus Marcus, 1952 
Brazil for Rhinepera targa Marcus, 1952 
Brazil for Rhinepera targa Marcus, 1952 
Brazil for Rhinepera targa Marcus, 1952 
Brazil for Rhynchodemus piptus Marcus, 1952 
Brazil for Ruanis pandula Marcus, 1952 
Brazil for Stylochus ticus Marcus, 1952 
Brazil for Tangaroa pusa Marcus, 1952 
Brazil for Toia ycia Marcus, 1952 
Brazil for Toia ycia Marcus, 1952