| Callithamniaceae
| | Acrothamnion preissii, Callithamnion tetricum, Aglaothamnion pseudobyssoides, Aglaothamnion sepositum | 27 |
| Ceramiaceae
| | Antithamnion villosum, Ceramium ciliatum, Pterothamnion crispum, Ceramium virgatum | 64 |
| Dasyaceae
| | Heterosiphonia plumosa, Dasya sessilis, Dasya baillouviana, Heterosiphonia crispella | 18 |
| Delesseriaceae
| | Nitophyllum punctatum, Acrosorium ciliolatum, Delesseria sanguinea, Cryptopleura ramosa | 32 |
| Naccariaceae
| | Atractophora hypnoides, Reticulocaulis mucosissimus, Naccaria wiggii | 3 |
| Rhodomelaceae
| | Osmundea pinnatifida, Chondria coerulescens, Chondria capillaris, Halopithys incurva | 145 |
| Sarcomeniaceae
| | Cottoniella filamentosa, Cottoniella filamentosa var. algeriensis, Cottoniella fusiformis, Platysiphonia delicata | 5 |
| Spyridiaceae
| | Spyridia filamentosa, Spyridia griffithsiana, Spyridia hypnoides | 3 |
| Wrangeliaceae
| | Halurus equisetifolius, Griffithsia opuntioides, Anotrichium furcellatum, Wrangelia penicillata | 44 |