Calcothrix N.A. Desvaux in C.A. Agardh, 1830 (original description)
Calcothrix cupreus Desvaux ex Agardh, 1830 (original description)
Gloeonema globiferum Agardh, 1830 (original description)
Gloeonema leibleini Agardh, 1830 (original description)
Gloeonema vermiculare Agardh, 1830 (original description)
Gloionema fucicola Bonnemaison ex Agardh, 1830 (original description)
Homoeocladia anglica Agardh, 1830 (original description)
Micromega apiculatum (Greville) C.Agardh accepted as
Schizonema apiculatum var. apiculatum Agardh, 1824 (new combination reference)
Micromega blyttii Agardh, 1830 (original description)
Micromega penicillatum (Chauvin, according to Agardh) Agardh, 1830 accepted as
Schizonema penicillatum Chauvin ex Agardh, 1830 (new combination reference)
Micromega ramosissimum (Agardh) Agardh, 1830 accepted as
Schizonema ramosissimum f. ramosissimum Agardh, 1824 (new combination reference)
Schizonema adriaticum C.Agardh, 1830 (original description)
Schizonema comoides var. comoides (Dillwyn) Agardh, 1830 (new combination reference)
Schizonema cupreum Agardh, 1830 (original description)
Schizonema fucicola Agardh, 1830 (original description)
Schizonema grevillei var. grevillei Agardh, 1830 (original description)
Schizonema hoffmannii Agardh, 1830 (original description)
Schizonema majusculum Agardh, 1830 (original description)
Schizonema penicillatum Chauvin ex Agardh, 1830 (original description)
Schizonema reticulatum Agardh manuscript ex Agardh, 1830 (original description)
Schizonema subdivisum Agardh, 1830 (original description)