Amphilepis scutata Mortensen, 1933 (original description)
Amphioplus falcatus Mortensen, 1933 represented as Amphioplus (Unioplus) falcatus Mortensen, 1933 (original description)
Amphioplus furcatus Mortensen, 1933 represented as Amphioplus (Lymanella) furcatus Mortensen, 1933 (original description)
Amphioplus pectinatus Mortensen, 1933 represented as Amphioplus (Amphioplus) pectinatus Mortensen, 1933 (original description)
Amphipholis similis Mortensen, 1933 (original description)
Amphipholis strata Mortensen, 1933 (original description)
Amphiura (Amphiura) albella Mortensen, 1933 (original description)
Amphiura (Amphiura) grandisquama natalensis Mortensen, 1933 (original description)
Amphiura (Amphiura) linearis Mortensen, 1933 (original description)
Amphiura adjecta Mortensen, 1933 accepted as Amphiura (Amphiura) capensis Ljungman, 1867 (original description)
Amphiura compressa Mortensen, 1933 accepted as Amphiura (Amphiura) capensis Ljungman, 1867 (original description)
Amphiura grandisquama var. natalensis Mortensen, 1933 accepted as Amphiura (Amphiura) grandisquama natalensis Mortensen, 1933 (original description)
Amphiura linearis Mortensen, 1933 represented as Amphiura (Amphiura) linearis Mortensen, 1933 (original description)
Amphiura strata Mortensen, 1933 accepted as Amphipholis strata Mortensen, 1933 (original description)
Anseropoda grandis Mortensen, 1933 (original description)
Asterostegus Mortensen, 1933 (original description)
Asterostegus tuberculatus Mortensen, 1933 (original description)
Astroceras spinigerum Mortensen, 1933 (original description)
Astrocladus africanus Mortensen, 1933 (original description)
Astrocladus hirtus Mortensen, 1933 (original description)
Astrocladus hirtus var. reticulatus Mortensen, 1933 accepted as Astrocladus hirtus Mortensen, 1933 (original description)
Astroconus capensis Mortensen, 1933 accepted as Astrodendrum capensis (Mortensen, 1933) accepted as Astrodendrum capense (Mortensen, 1933) (original description)
Astropecten exilis Mortensen, 1933 (original description)
Astrostegus tuberculatus Mortensen, 1933 accepted as Asterostegus tuberculatus Mortensen, 1933 (original description)
Cryptopelta keiensis Mortensen, 1933 (original description)
Disasterina leptalacantha var. africana Mortensen, 1933 accepted as Tegulaster leptalacantha (H.L. Clark, 1916) (original description)
Gorgonocephalus pectinatus Mortensen, 1933 accepted as Gorgonocephalus pustulatum (H.L. Clark, 1916) (original description)
Hippasteria phrygiana var. capensis Mortensen, 1933 (original description)
Mediaster capensis durbanensis Mortensen, 1933 (original description)
Mediaster capensis var. durbanensis Mortensen, 1933 accepted as Mediaster capensis durbanensis Mortensen, 1933 (original description)
Ophiacantha (Ophiotreta) durbanensis Mortensen, 1933 accepted as Ophiotreta durbanensis (Mortensen, 1933) (original description)
Ophiacantha baccata Mortensen, 1933 (original description)
Ophiacantha scutigera Mortensen, 1933 (original description)
Ophiacantha striolata Mortensen, 1933 (original description)
Ophiocten amitinum var. microplax Mortensen, 1933 accepted as Ophiocten affinis simulans (Mortensen, 1936) (original description)
Ophiomitrella hamata Mortensen, 1933 accepted as Ophiosemnotes hamata (Mortensen, 1933) (original description)
Ophiomyxa tenuispina Mortensen, 1933 (original description)
Ophiopezella decorata Mortensen, 1933 accepted as Ophiopeza fallax fallax Peters, 1851 (original description)
Ophioplinthaca sexradia Mortensen, 1933 (original description)
Ophioscolex (Ophiolycus) accepted as Ophiolycus Mortensen, 1933 (original description)
Ophioscolex (Ophioscolex) inermis Mortensen, 1933 accepted as Ophioscolex inermis Mortensen, 1933 (original description)
Ophioscolex dentatus var. spiniger Mortensen, 1933 represented as Ophioscolex (Ophiolycus) dentatus spiniger Mortensen, 1933 (original description)
Ophioscolex inermis Mortensen, 1933 (original description)
Ophiothamnus remotus cordatus Mortensen, 1933 accepted as Ophiothamnus remotus Lyman, 1878 (original description)
Ophiothrix fragilis triglochis Müller & Troschel, 1842 accepted as Ophiothrix fragilis (Abildgaard in O.F. Müller, 1789) (basis of record)
Ophiura (Ophiuroglypha) costata tumida Mortensen, 1933 accepted as Ophiuroglypha tumida (Mortensen, 1933) (original description)
Ophiura (Ophiuroglypha) tumida Mortensen, 1933 accepted as Ophiura (Ophiuroglypha) costata tumida Mortensen, 1933 accepted as Ophiuroglypha tumida (Mortensen, 1933) (original description)
Ophiura tumida Mortensen, 1933 accepted as Ophiura (Ophiuroglypha) costata tumida Mortensen, 1933 accepted as Ophiuroglypha tumida (Mortensen, 1933) (original description)
Parasterina formosa Mortensen, 1933 accepted as Callopatiria formosa (Mortensen, 1933) (original description)
Persephonaster euryplax Mortensen, 1933 accepted as Persephonaster roulei var. euryplax Mortensen, 1933 (original description)
Persephonaster roulei var. euryplax Mortensen, 1933 (original description)
Pteraster (Apterodon) fornicatus Mortensen, 1933 represented as Pteraster fornicatus Mortensen, 1933 (original description)
Pteraster flabellifer Mortensen, 1933 (original description)
Pteraster fornicatus Mortensen, 1933 (original description)
Tylaster meridionalis Mortensen, 1933 accepted as Spoladaster brachyactis (H.L. Clark, 1923) accepted as Spoladaster veneris (Perrier, 1879) (original description)

South Africa (country) for Astropecten granulatus Müller & Troschel, 1842 
South Africa (country) for Luidia maculata Müller & Troschel, 1842 
South Africa (country) for Pentaceraster mammillatus (Audouin, 1826)