The Ctenostomata are an order of bryozoans in the class Gymnolaemata. The great majority of ctenostome species are marine, although Paludicella inhabits freshwater. They are distinguished from their close relatives, the cheilostomes, by their lack of a calcified exoskeleton. Instead, the exoskeleton is chitinous, gelatinous, or composed only of a ...
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http://en.wikipedia.org/wiki/Ctenostomata
• (n. pl.) A suborder of Bryozoa, usually having a circle of bristles below the tentacles.
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http://thinkexist.com/dictionary/meaning/ctenostomata/
(from the article `moss animal`) ...septa; zooids polymorphic; mainly marine; all seas; Jurassic to present, but presumed to have been established at least by the Ordovician; about ... The ctenostomes (class Gymnolaemata) have left a sparse fossil record. During the Late Jurassic Period they apparently gave rise to the complex and ... ...
Found on
http://www.britannica.com/eb/a-z/c/165
Cten`o·stom'a·ta noun plural [ New Latin , from Greek ........., ........., comb + ............, -......... mouth.]
(Zoology) A suborder of Bryozoa, usually having a circle of bristles below the tentacles.
Found on
http://www.encyclo.co.uk/webster/C/198
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