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Bryozoans

      The Bryozoa, also known as Ectoprocta or commonly as moss animals, are a phylum of aquatic invertebrate animals. Typically about 0.5 millimetres (0.020 in) long, they are filter feeders that sieve food particles out of the water using a retractable lophophore, a "crown" of tentacles lined with cilia. Most marine species live in tropical waters, but a few occur in oceanic trenches, and others are found in polar waters. One class lives only in a variety of freshwater environments, and a few members of a mostly marine class prefer brackish water. Over 4,000 living species are known. One genus is solitary and the rest colonial. The phylum was originally called "Polyzoa", but this term was superseded by "Bryozoa" in 1831. Another group of animals discovered subsequently, whose filtering mechanism looked similar, was also included in "Bryozoa" until 1869, when the two groups were noted to be very different internally. The more recently discovered group were given the name Entoprocta, while the original "Bryozoa" were called "Ectoprocta". However, "Bryozoa" has remained the more widely used term for the latter group.

Source: en.wikipedia.org/wiki/Bryozoa
Stenolaemata Borg, 1926 M1550
Stenolaemata Borg, 1926 SZ91
Stenolaemata Borg, 1926 M2190
Stenolaemata Borg, 1926 JH214
Stenolaemata Borg, 1926 JH294
Stenolaemata Borg, 1926 M1826
Stenolaemata Borg, 1926 YA136
Stenolaemata Borg, 1926 p5876
Stenolaemata Borg, 1926 p5879
Stenolaemata Borg, 1926 YA939
Stenolaemata Borg, 1926 M11793
Stenolaemata Borg, 1926 HF2693
Stenolaemata Borg, 1926 M11773
Stenolaemata Borg, 1926 M11775
Stenolaemata Borg, 1926 M11784
Stictoporella p5875
Tholopora novaki HF2696
Tholopora novaki HF2688
Tholopora novakiEliov (2005), fig. 1 HF2689
Tholopora novaki HF2690

Virtual museum of the Czech Geological Survey, www.geology.cz, (C) Czech Geological Survey, 2011, v.0.99 [13.12.2011]