Online Encyclopedia
ORDERII
Online EncyclopediaOriginally appearing in Volume
V04,
Page 366
of the 1911 Encyclopedia Britannica.
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ORDERII . Neotremata ( See also: Beecher) .— 2
.
Deltidium
.
More or less circular, See also: cone-shaped, 3
.
Margin of delthyrium. inarticulate See also: Brachiopoda
.
The pedicle 4
.
Pedicle-opening. passes out at right angles to the See also: plane 5
.
Dorsal valve
.
of junction of the valves of the See also: shell;
the opening is confined to the ventral valve, and may take the See also: form of a slit, or may be closed by the development of a See also: special See also: plate called the listrium, or by a pseudo-deltidium
.
See also: Pro-deltidium attached
I
to ventral valve
.
FAM See also: ILI ES.—Ac ROT RETIDAE, SIPHONOTRETIDAE, TREMATIDAE, DISCINIDAE, CRANIIDAE
.
Class II
.
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