Two new sponge species, Haliclona durdong sp. nov. and Haliclona djeedara sp. nov. from the south west of Western Australia are described. Morphologically distinct from each other, both species are assigned to the genus Haliclona subgenus Haliclona. Haliclona djeedara sp. nov. individuals are ficiform to lobate,  brown to beige in colour and have numerous apical oscules. Haliclona durdong sp. n...

Alectonidae Rosell (Demospongiae, Hadromerida), including Thoosidae Rosell & Uriz (part) and [Scolopidae] Sollas (a nomen oblitum), contains species with limestone-excavating capability and habitus similar to many Clionaidae, including some massive (gamma) forms, but lacking tylostyles. Instead, megascleres may be missing or include oxeas, styles, and strongyles, some with fanciful ornamentatio...

Class Demospongiae (phylum Porifera) encompasses most of sponges' morphological and species diversity. It also represents one of the most challenging and understudied groups in animal phylogenetics, with many higher-level relationships still being unresolved. Among the unanswered questions are the most fundamental, including those about the monophyly of the Demospongiae and the relationships am...

Reconstructing the phylogeny of sponges (Porifera) is one of the remaining challenges to resolve the metazoan Tree of Life and is a prerequisite for understanding early animal evolution. Molecular phylogenetic analyses for two of the three extant classes of the phylum, Demospongiae and Calcarea, are largely incongruent with traditional classifications, most likely because of a paucity of inform...

Sumber Daya Alam berupa spons khususnya kelas Demospongiae memiliki jumlah yang banyak danberpotensi dalam mengembangkan berbagai bidang terutama bioteknologi. Maka dari itu, perludilakukan budidaya agar dapat mempertahankan keseimbangan alam dan ketersediaannya.Budidaya merupakan upaya memperbanyak dengan waktuyang relatif singkat. Diantara pertimbangan untuk menentukan optimasi metode adalah ...

Poribacteria were found in nine sponge species belonging to six orders of Porifera from three oceans. Phylogenetic analysis revealed four distinct poribacterial clades, which contained organisms obtained from several different geographic regions, indicating that the distribution of poribacteria is cosmopolitan. Members of divergent poribacterial clades were also found in the same sponge species...

Sponges of the species Tethya wilhelma display rhythmic body contractions, which were analyzed by digital timelapse imaging and semi-automated image analysis. For the first time, differential, quantitative data on sponge behaviour could be obtained. The sponges are able to reduce their body volume by up to 73.3% during regular contractions. Each contraction cycle follows a characteristic patter...

This paper deals with niphatid sponges from the coast of the Bahia State, northeastern coast of the Brazilian shelf (southwestern Atlantic). Two new species are described, Amphimedon estelae sp. nov. and Niphates luizae sp. nov. A taxonomic study of those samples is given, including description and illustrations. Both species were compared with their congeners present in the Atlantic Ocean.

Four new species of Haplosclerida are described from the Aleutian Islands, Alaska: Callyspongia mucosa n.sp., Cladocroce infundibulum n. sp., Cladocroce attu n. sp. and Cladocroce kiska n. sp. The new species are described and compared to congeners of the region. This is the northernmost record of the genus Callyspongia and the first record of the subgenus Callyspongia from the North Pacific Oc...

Fig 1 and Fig 2 are inadvertently switched. Fig 1 should be Fig 2 and Fig 2 should be Fig 1. The authors have provided the correct figures here. access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.