- s**** and the
protoconch of
Atlanta lesueurii: Page,
Louise (2000). "Inflated
Protoconchs and
Internally Dissolved,
Coiled Protoconchs of
Nudibranch Larvae:...
-
sediment as the
snail crawls. The
larval s**** of a
gastropod is
called a
protoconch. Most s****ed
gastropods have a one
piece s**** (with
exceptional bivalved...
-
Protoconch—a
larval s**** of a mollusc; also
refers to
protoconch whorls of an
adult s**** Teleoconch—all the
whorls of a s****
after the
protoconch whorls...
- Trochop**** of
Haliotis asinina with
calcified protoconch (pc)
prior to torsion....
-
consisted of an
ovoid protoconch and
several chambers. The
protoconch had two layers, and
several compartments -
called "
protoconch pockets" -
formed between...
- s**** show a long tower-shaped
protoconch or
embryonic s**** of 5 whorls,
which is
usually lost in the adult. This
protoconch is
about 2.5 cm long and looks...
- more
primitive nautiloids by the
small size and
globular shape of the
protoconch, the so-called
embryonic s****.
Nautiloids have
relatively large embryonic...
-
suggesting a long-lived
planktonic larval life
stage (reflected by
their protoconchs); but by the
Ordovician distinct ****emblages were
becoming evident. Some...
- molecules. In this way the
larval s**** (
protoconch) is formed. The
construction of the
haliotid protoconch is
complete following torsion.
These structures...
-
significance in the
United States. The
snail has a bulbous, large, and
broad protoconch, with a
white or bluish-white columella,
parietal wall, and
outer lip...
