Bryozoa
苔藓虫门; 苔藓动物门
苔藓虫门; 苔藓动物门
Bryozoa n 1 :
marine or freshwater animals that form colonies of zooids [
synonym : {
Bryozoa }, {
phylum Bryozoa }, {
polyzoa }]
Bryozoa \
Bry `
o *
zo "
a \,
n .
pl . [
NL .,
fr .
Gr . ?
moss ?
animal .]
(
Zool .)
A class of Molluscoidea ,
including minute animals which by budding form compound colonies ; --
called also {
Polyzoa }.
[
1913 Webster ]
Note :
They are often coralike in form and appearance ,
each small cell containing an individual zooid .
Other species grow in delicate ,
flexible ,
branched forms ,
resembling moss ,
whence the name .
Some are found in fresh water ,
but most are marine .
The three principal divisions are {
Ectoprocta }, {
Entoprocta },
and {
Pterobranchia }.
See {
Cyclostoma }, {
Chilostoma },
and {
Phylactolema }.
[
1913 Webster ]
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