| slovo | definícia |
Acephala
(gcide) | Lamellibranchia \La*mel`li*bran"chi*a\, Lamellibranchiata
\La*mel`li*bran`chi*a"ta\, n. pl. [NL. See lamella, and
Branchia, Branchiate.] (Zool.)
An earlier name for the class of Mollusca including all those
that have bivalve shells, as the clams, oysters, mussels,
etc., now called Pelecypoda or Bivalvia.
[1913 Webster +PJC]
Note: They usually have two (rarely but one) flat,
lamelliform gills on each side of the body. They have
an imperfectly developed head, concealed within the
shell, whence they are called {Acephala}. Called also
Conchifera, and Pelecypoda. See Bivalve.
[1913 Webster] |
Acephala
(gcide) | Acephala \A*ceph"a*la\, n. pl. [NL., fr. Gr. ?, adj. neut. pl.,
headless. See Acephal.] (Zool.)
That division of the Mollusca which includes the bivalve
shells, like the clams and oysters; -- so called because they
have no evident head. Formerly the group included the
Tunicata, Brachiopoda, and sometimes the Bryozoa. See
Mollusca.
[1913 Webster] |
| | podobné slovo | definícia |
Acephala
(gcide) | Lamellibranchia \La*mel`li*bran"chi*a\, Lamellibranchiata
\La*mel`li*bran`chi*a"ta\, n. pl. [NL. See lamella, and
Branchia, Branchiate.] (Zool.)
An earlier name for the class of Mollusca including all those
that have bivalve shells, as the clams, oysters, mussels,
etc., now called Pelecypoda or Bivalvia.
[1913 Webster +PJC]
Note: They usually have two (rarely but one) flat,
lamelliform gills on each side of the body. They have
an imperfectly developed head, concealed within the
shell, whence they are called {Acephala}. Called also
Conchifera, and Pelecypoda. See Bivalve.
[1913 Webster]Acephala \A*ceph"a*la\, n. pl. [NL., fr. Gr. ?, adj. neut. pl.,
headless. See Acephal.] (Zool.)
That division of the Mollusca which includes the bivalve
shells, like the clams and oysters; -- so called because they
have no evident head. Formerly the group included the
Tunicata, Brachiopoda, and sometimes the Bryozoa. See
Mollusca.
[1913 Webster] |
Acephalan
(gcide) | Acephalan \A*ceph"a*lan\, n.
Same as Acephal.
[1913 Webster]Acephalan \A*ceph"a*lan\, a. (Zool.)
Belonging to the Acephala.
[1913 Webster] |
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