Chonelasma Choanoides
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Chonelasma Choanoides
''Chonelasma'' is a genus of sea sponge in the family Euretidae. Species According to the ''World Register of Marine Species'', the following species are accepted within ''Chonelasma'': * ''Chonelasma australe'' Reiswig & Kelly, 2011 * ''Chonelasma biscopulatum'' Reiswig & Kelly, 2011 * ''Chonelasma bispinula'' Kersken, Janussen & Martínez Arbizu, 2019 * ''Chonelasma chathamense'' Reiswig & Kelly, 2011 * ''Chonelasma choanoides'' Schulze & Kirkpatrick, 1910 * ''Chonelasma doederleini'' Schulze, 1886 * ''Chonelasma glaciale'' Reiswig & Kelly, 2011 * ''Chonelasma hamatum'' Schulze, 1886 * ''Chonelasma ijimai'' Topsent, 1901 * ''Chonelasma lamella'' Schulze, 1886 * ''Chonelasma oreia'' Reiswig, 2014 References

Hexactinellida Hexactinellida genera {{Porifera-stub ...
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Sea Sponge
Sponges or sea sponges are primarily marine invertebrates of the animal phylum Porifera (; meaning 'pore bearer'), a basal clade and a sister taxon of the diploblasts. They are sessile filter feeders that are bound to the seabed, and are one of the most ancient members of macrobenthos, with many historical species being important reef-building organisms. Sponges are multicellular organisms consisting of jelly-like mesohyl sandwiched between two thin layers of cells, and usually have tube-like bodies full of pores and channels that allow water to circulate through them. They have unspecialized cells that can transform into other types and that often migrate between the main cell layers and the mesohyl in the process. They do not have complex nervous, digestive or circulatory systems. Instead, most rely on maintaining a constant water flow through their bodies to obtain food and oxygen and to remove wastes, usually via flagella movements of the so-called " collar cells". ...
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