Alderina smitti Osburn, 1950 (original description)
Amastigia biseriata Osburn, 1950 (original description)
Anexechona Osburn, 1950 (original description)
Anexechona ancorata Osburn, 1950 (original description)
Aplousina major Osburn, 1950 (original description)
Beania alaskensis Osburn, 1950 (original description)
Caleschara mexicana Osburn, 1950 (original description)
Cellaria fissurifera Canu & Bassler, 1923 accepted as Cellaria diffusa Robertson, 1905 (source of synonymy)
Cellaria veleronis Osburn, 1950 (original description)
Colletosia bellula Osburn, 1950 accepted as Bellulopora bellula (Osburn, 1950) (original description)
Copidozoum spinatum Osburn, 1950 (original description)
Cranosina colombiana Osburn, 1950 (original description)
Electra anomala Osburn, 1950 accepted as Arbopercula bengalensis (Stoliczka, 1869) (original description)
Electra biscuta Osburn, 1950 accepted as Osburnea biscuta (Osburn, 1950) (original description)
Euritina arctica Osburn, 1950 accepted as Reussinella arctica (Osburn, 1950) (original description)
Figularia hilli Osburn, 1950 (original description)
Hincksina pacifica Osburn, 1950 (original description)
Hincksina velata (Hincks, 1881) (new combination reference)
Membranipora pachytheca Osburn, 1950 (original description)
Membranipora serrilamella Osburn, 1950 accepted as Membranipora villosa Hincks, 1880 (original description)
Membraniporella pulchra Osburn, 1950 (original description)
Membraniporidra porosa Osburn, 1950 (original description)
Reginella mattoidea Osburn, 1950 (original description)
Reginella nitida Osburn, 1950 (original description)
Retevirgula lata Osburn, 1950 (original description)
Scrupocellaria macropora Osburn, 1950 accepted as Licornia macropora (Osburn, 1950) (original description)
Scrupocellaria mexicana Osburn, 1950 accepted as Licornia mexicana (Osburn, 1950) (original description)
Scrupocellaria panamensis Osburn, 1950 accepted as Aspiscellaria panamensis (Osburn, 1950) (original description)
Scrupocellaria profundis Osburn, 1950 accepted as Bathycellaria profundis (Osburn, 1950) (original description)
Scrupocellaria pugnax Osburn, 1950 accepted as Licornia pugnax (Osburn, 1950) (original description)
Scrupocellaria spinigera Osburn, 1950 accepted as Licornia spinigera (Osburn, 1950) (original description)
Scrupocellaria talonis Osburn, 1950 accepted as Pomocellaria talonis (Osburn, 1950) (original description)
Scrupocellaria unguiculata Osburn, 1950 accepted as Paralicornia unguiculata (Osburn, 1950) (original description)
Sessibugula Osburn, 1950 (original description)
Sessibugula translucens Osburn, 1950 (original description)
Steganoporella cornuta Osburn, 1950 accepted as Steginoporella cornuta Osburn, 1950 (original description)
Steginoporella cornuta Osburn, 1950 (original description)
Tegella magnipora Osburn, 1950 (original description)
Tricellaria praescuta Osburn, 1950 (original description)

Panamanian part of the North Pacific Ocean for Arbopercula bengalensis (Stoliczka, 1869)  (origin: alien)
United States for Bugula stolonifera Ryland, 1960  (origin: alien)