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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 The phylum was originally called "Polyzoa", but this term was superseded by "Bryozoa" in 1831.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 M11800
Stenolaemata Borg, 1926 M11777
Stenolaemata Borg, 1926 M11788
Stenolaemata Borg, 1926 M11796
Stenolaemata Borg, 1926 M11797
Stenolaemata Borg, 1926 BB433
Stenolaemata Borg, 1926 JH215
Stenolaemata Borg, 1926 JH281
Stenolaemata Borg, 1926 JH293
Stenolaemata Borg, 1926 JH296
Stenolaemata Borg, 1926 JH300
Stenolaemata Borg, 1926 HL162
Stenolaemata Borg, 1926 YA134
Stenolaemata Borg, 1926 R519
Stenolaemata Borg, 1926foto BB448
Stenolaemata Borg, 1926 BB449
Stenolaemata Borg, 1926 JH275
Stenolaemata Borg, 1926 YA142
Stenolaemata Borg, 1926 XA796
Stenolaemata Borg, 1926 YA940

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