Robuta

https://marinespecies.org/afremas/aphia.php?p=taxdetails&id=134085

African Register of Marine Species (AfReMaS) - Poecillastra crassiuscula (Sollas, 1886)

marine species african register crassiuscula sollas

https://species.wikimedia.org/wiki/Polysiphonia_crassiuscula

Polysiphonia crassiuscula - Wikispecies

polysiphonia crassiuscula wikispecies