Fucus guiryi (Fig. 8.5a) and Lithophyllum byssoides (Fig. 8.5b) are characteristic
species. It must be highlighted that F. guiryi reaches its limit of distribution on the
European coast of the Alboran Sea at Punta de Calaburras (Mijas, Málaga) and on
Fig. 8.4 In the eulittoral
zone, it is possible to
differentiate clearly up to
two subsidiary zones
characterized by different
species (a). Rissoella
verruculosa (below) and
Nemalion helminthoides
(center) are two of the most
characteristic species of the
first level of the eulittoral
zone; R. verruculosa
appears restricted to
non-calcareous substrates
(b). A macroalgae
community of caespitose
biotype with a great
diversity of species develops
in the lower zone of the
eulittoral (c). Photos: Julio
De la Rosa
256
A. Flores-Moya et al.