PSAMMOBIONTIC CLIONAIDAE (DEMOSPONGIAE: HADROMERIDA) IN LAGOONS OF THE RYUKYU ISLANDS, SOUTHWESTERN JAPAN
Resumen
Cliona inconstans (Dendy, 1887) is reliably recorded from the Ryukyu Islands, southwestern Japan and redescribed. This sponge varies in shape from columnar to massive. At present we conclude that the sponge belongs to the genus Cliona. This species has variations in the number of spirasters, with some specimens totally lacking spirasters. Ridleia peleia de Laubenfels, 1954 lacks microscleres, but shares important characters with C. inconstans. Hence, it is found to be synonymous with C. inconstans. C. inconstans lives with most of its body buried in sandy sediments of lagoon, incorporating numerous calcareous particles in its tissue and eroding them. This is an effective strategy for living in an unconsolidated environment where hardly any other sessile animals live. The resulting erosion traces are observed and described for the first time for this species.Descargas
Publicado
2018-05-23
Número
Sección
Articoli
Licencia
Authors who publish in this journal accept the following conditions:
- Authors mantain the rights to their work and give the journal the right of first publication, simoultaneously licensed under a Creative Common International License 4.0: Attribution - Noncommercial - Share-Alike, which allows to share the work declaring the intellectual paternity and the first publication in this journal
- Authors can subscribe othe non exclusive license agreements to distribute the published version of their work (eg deposit it in an institutional archive or publish it in a monograph) only if they declare that the first publication was in this journal.
- The authors can spread their work online (eg in institutional repositories or on their own website) at the end of submission process (post print version).
