Acerotisa arctica Hyman, 1953 (original description)
Copidoplana tripyla Hyman, 1953 accepted as Tripyloplana tripyla (Hyman, 1953) (original description)
Diplehnia caeca var. oculifera (Hyman, 1953) (original description)
Euplana pacificola (Plehn, 1896) Hyman, 1953 accepted as Euplanoida pacificola (Plehn, 1896) (new combination reference)
Euryleptodes insularis Hyman, 1953 (original description)
Hoploplanidae Stummer-Traunfels, 1933 (additional source)
Longiprostatum Hyman, 1953 (original description)
Macginitiella Hyman, 1953 (original description)
Marcusia Hyman, 1953 (original description)
Mexistylochus Hyman, 1953 (original description)
Mexistylochus levis Hyman, 1953 accepted as Latoplana levis (Hyman, 1953) (original description)
Mexistylochus tuberculatus Hyman, 1953 accepted as Ommatoplana mexicana Hyman, 1953 (original description)
Paraplehnia Hyman, 1953 (original description)
Parviplana Hyman, 1953 (original description)
Plehnia caeca oculifera Hyman, 1953 accepted as Diplehnia caeca var. oculifera (Hyman, 1953) (original description)
Plehnia caeca var. oculifera Hyman, 1953 accepted as Diplehnia caeca var. oculifera (Hyman, 1953) (original description)
Plehnia pacifica Kato, 1939 accepted as Paraplehnia pacifica (Kato, 1939) (source of synonymy)
Pseudoceros bajae Hyman, 1953 accepted as Cryptobiceros bajae (Hyman, 1953) accepted as Pseudobiceros bajae (Hyman, 1953) (original description)
Pucelis mexicana Hyman, 1953 accepted as Notocomplana mexicana (Hyman, 1953) (original description)
Spinicirrus Hyman, 1953 (original description)
Stylochus atentaculatus Hyman, 1953 (original description)
Stylochus californicus Hyman, 1953 (original description)
Stylochus exiguus Hyman, 1953 (original description)
Stylochus franciscanus Hyman, 1953 (original description)
Stylochus insolitus Hyman, 1953 (original description)
Stylochus tripartitus Hyman, 1953 (original description)
Thysanozoon sandiegense Hyman, 1953 accepted as Thysanozoon sandiegiense Hyman, 1953 (original description)

California for Plehnia caeca oculifera Hyman, 1953 
California for Plehnia caeca oculifera Hyman, 1953 
California for Stylochus atentaculatus Hyman, 1953 
California for Stylochus atentaculatus Hyman, 1953 
California for Stylochus atentaculatus Hyman, 1953 
California for Stylochus atentaculatus Hyman, 1953 
California for Stylochus atentaculatus Hyman, 1953 
California for Stylochus californicus Hyman, 1953 
California for Stylochus californicus Hyman, 1953 
California for Stylochus californicus Hyman, 1953 
California for Stylochus californicus Hyman, 1953 
California for Stylochus exiguus Hyman, 1953 
California for Stylochus exiguus Hyman, 1953 
California for Stylochus franciscanus Hyman, 1953 
California for Stylochus franciscanus Hyman, 1953 
California for Stylochus franciscanus Hyman, 1953 
California for Stylochus franciscanus Hyman, 1953 
California for Stylochus franciscanus Hyman, 1953 
California for Stylochus franciscanus Hyman, 1953 
California for Stylochus franciscanus Hyman, 1953 
California for Stylochus franciscanus Hyman, 1953 
California for Stylochus franciscanus Hyman, 1953 
California for Stylochus franciscanus Hyman, 1953 
California for Stylochus insolitus Hyman, 1953 
California for Stylochus tripartitus Hyman, 1953 
California for Stylochus tripartitus Hyman, 1953 
Mexico for Mexistylochus levis Hyman, 1953 
Mexico for Mexistylochus tuberculatus Hyman, 1953 
Mexico for Mexistylochus tuberculatus Hyman, 1953 
Mexico for Stylochus atentaculatus Hyman, 1953 
Mexico for Stylochus tripartitus Hyman, 1953 
Oregon for Stylochus atentaculatus Hyman, 1953 
Oregon for Stylochus atentaculatus Hyman, 1953 
Oregon for Stylochus tripartitus Hyman, 1953 
Washington (State) for Acerotisa alba Freeman, 1933