Achlyonice monactinica Ohshima, 1915 (original description)
Bathyplotes östergreni Ohshima, 1915 accepted as Bathyplotes natans (M. Sars, 1868) (original description)
Benthodytes gotoi Ohshima, 1915 accepted as Benthodytes incerta Ludwig, 1893 (original description)
Capheira mollis Ohshima, 1915 (original description)
Caudina ludwigi Ohshima, 1915 accepted as Hedingia ludwigi (Ohshima, 1915) (original description)
Cucumaria constricta Ohshima, 1915 accepted as Pentamera constricta (Ohshima, 1915) (original description)
Cucumaria globosa Ohshima, 1915 accepted as Echinocucumis globosa (Ohshima, 1915) (original description)
Cucumaria ijimai Ohshima, 1915 (original description)
Cucumaria lamperti Ohshima, 1915 accepted as Pseudocnus lamperti (Ohshima, 1915) (original description)
Cucumaria sluiteri Ohshima, 1915 accepted as Abyssocucumis abyssorum (Théel, 1886) (original description)
Cucumaria spinosa Ohshima, 1915 accepted as Pseudocnus spinosus (Ohshima, 1915) (original description)
Deima mosaicum Ohshima, 1915 accepted as Deima validum validum Théel, 1879 (original description)
Ilyodaemon miurense Ohshima, 1915 accepted as Laetmogone maculata (Théel, 1879) (original description)
Mesothuria (Mesothuria) media Ohshima, 1915 accepted as Mesothuria media Ohshima, 1915 accepted as Mesothuria abbreviata Koehler & Vaney, 1905 (original description)
Mesothuria media Ohshima, 1915 accepted as Mesothuria abbreviata Koehler & Vaney, 1905 (original description)
Molpadia clarki Ohshima, 1915 (original description)
Molpadia infesta Ohshima, 1915 (original description)
Myriotrochus mitsukurii Ohshima, 1915 (original description)
Orphnurgus rigidus Ohshima, 1915 accepted as Orphnurgus glaber Walsh, 1891 (original description)
Pannychia moseleyi virgulifera Ohshima, 1915 accepted as Pannychia virgulifera Ohshima, 1915 (original description)
Peniagone japonica Ohshima, 1915 (original description)
Phyllophorus cylindricus Ohshima, 1915 accepted as Ekmania cylindricum (Ohshima, 1915) (original description)
Phyllophorus diomedeae Ohshima, 1915 accepted as Thyonidium diomedeae (Ohshima, 1915) accepted as Ekmania diomedeae (Ohshima, 1915) (original description)
Phyllophorus glaucus Ohshima, 1915 accepted as Ekmania glaucum (Ohshima, 1915) (original description)
Phyllophorus minutus Ohshima, 1915 accepted as Neothyonidium minutum (Ohshima, 1915) (original description)
Protankyra kagoshimensis Ohshima, 1915 (original description)
Pseudocucumis dactylicus Ohshima, 1915 accepted as Vaneyella dactylica (Ohshima, 1915) (original description)
Pseudocucumis sagamiensis Ohshima, 1915 accepted as Neocucumis sagamiensis (Ohshima, 1915) (original description)
Pseudocucumis tabulatus Ohshima, 1915 accepted as Thyonidium tabulatum (Ohshima, 1915) (original description)
Pseudocucumis watasei Ohshima, 1915 accepted as Neocucumis watasei (Ohshima, 1915) (original description)
Pseudostichopus aleutianus Ohshima, 1915 accepted as Pseudostichopus peripatus (Sluiter, 1901) (original description)
Pseudostichopus arenosus Ohshima, 1915 accepted as Pseudostichopus hyalegerus (Sluiter, 1901) (original description)
Pseudostichopus molpadioides Ohshima, 1915 accepted as Pseudostichopus hyalegerus (Sluiter, 1901) (original description)
Pseudostichopus nudus Ohshima, 1915 accepted as Pseudostichopus mollis Théel, 1886 (original description)
Pseudostichopus unguiculatus Ohshima, 1915 accepted as Pseudostichopus peripatus (Sluiter, 1901) (original description)
Psolidium bullatum Ohshima, 1915 (original description)
Psolidium vitreum Ohshima, 1915 (original description)
Scotoplanes theeli Ohshima, 1915 (original description)
Scotoplanes théeli Ohshima, 1915 accepted as Scotoplanes theeli Ohshima, 1915 (original description)
Synallactes gilberti Ohshima, 1915 (original description)
Synallactes multivesiculatus Ohshima, 1915 (original description)
Taeniogyrus cidaridis Ohshima, 1915 (original description)
Thyone bicornis Ohshima, 1915 (original description)
Thyone imbricata Ohshima, 1915 accepted as Stereoderma imbricata (Ohshima, 1915) (original description)
Thyone parva Ohshima, 1915 accepted as Paracucumaria parva (Ohshima, 1915) (original description)
Thyone punctata Ohshima, 1915 accepted as Stolus punctatus (Ohshima, 1915) (original description)
Toxodora pacifica Ohshima, 1915 accepted as Neotoxodora pacifica (Ohshima, 1915) (original description)

North Pacific for Achlyonice monactinica Ohshima, 1915