The sponge Callyspongia ramosa belongs to the Porifera phylum, Demospongiae class, Haplosclerida order, Callyspongiidae family. Sponges, the members of the phylum Porifera are a basal Metazoa (animal) clade as a sister of the Diploblats. ...
Nosy Be - Madagascar - Barriera Corallina III. A Nosy Be non ci sono pareti con la barriera corallina ma picchi corallini che si alzano da fondali sabbiosi ...
Silvertip shark (Carcharhinus albimarginatus) is a large species of requiem shark, in the family Carcharhinidae, with a fragmented distribution throughout the tropical Indian and Pacific Oceans ...