All recent freshwater sponges belong to the phylum Porifera, class Demospongiae, order Haplosclerida
, and suborder Spongillida.
Alkylated pyridine alkaloids, especially those having a long functionalized (NO2, NH2, NH2O, C=C, alkyne,) chain alkyl at C-3 of the pyridine ring, are abundantly isolated from marine sponges of the order Haplosclerida
, which allowed us to consider 3alkyl pyridine compounds as chemotaxonomic markers for the systematic identification of haplosclerid members .
, Homosclerophorida and Hexactinosida had a composition of 6.25% species in each.
Freshwater sponges of the West Indies: discovery of Spongillidae (Haplosclerida
, Spongillidae) from Cuba with biogeographic notes and a checklist for the Carribean area.
1999, 2001 Aplysina fistularis BAH Wehrl 2006; Verongida Gloeckner 2013 Aplysina insularis BAH Wehrl 2006 Verongida Aplysina lacunosa FL Wehrl 2006 Verongida Chondrosia MED Wehrl 2006 Chondrosida reniformis Cribrochalina BAH Schiller 2006 (marine) vasculum Haplosclerida
Ectyoplasia ferox FL Schmitt et al.
Larvae of Sisyridae are associated with colonies of freshwater sponges (Porifera: Haplosclerida: Spongillidae) where they live and obtain their food.
Nine larvae were collected together with their substrate (freshwater sponge colonies of Spongilla sp.; Haplosclerida: Spongillidae) and maintained with a small piece of the sponge colony in water in a plastic cup covered with a fine-mesh tissue.
Habitat selection by larvae of the symbiotic sponge Haliclona caerulea (Hechtel, 1965) (Demospongiae, Haplosclerida
Specimens of Amphimedon queenslandica Hooper and van Soest, 2006 (Porifera, Demospongiae, Haplosclerida
, Niphatidae) were collected on Heron Island Reef, Great Barrier Reef, Australia, as described in Leys and Degnan (2002), and in situ hybridization was performed as described in Larroux et al.
(Porifera, Demospongiae, Haplosclerida
, Chalinidae) were collected in February, April, August, and December, 1999, from the reef flat in Shark Bay on Heron Is.