Placorhynchidae Meixner, 1938
Placorhynchus bidens Brunet, 1973
Placorhynchus bideus Brunet, 1973
Placorhynchus dimorphis (Karling, 1947)
Placorhynchus doei Karling, 1995
Placorhynchus echinulatus Karling, 1947
Placorhynchus magnaspina Ax, 2008
Placorhynchus meridionalis Karling, 1952
Placorhynchus octaculeatus Karling, 1931
Placorhynchus pacificus Karling, 1989
Placorhynchus paratetraculeatus Ax & Armonies, 1990
Placorhynchus separatus Ax, 2008
Placorhynchus tetraculeatus Armonies & Hellwig, 1987
Placorhynchus tvaerminnensis Karling, 1930
