| Term | Definition |
| PROTOCONCH |
The LARVAL shell, formed by all the nuclear whorls, of a gastropod shell; sometimes this includes (and sometimes excludes) the earlier NUCLEAR WHORLS. See illustration: Composite Gastropod. See also:
DISSOCONCH;
PRODISSOCONCH;
SCAPHOCONCHA;
TELEOCONCH;
VELICONCH; =
NUCLEUS. See Marlo Krisberg's graphic Counting Protoconch Whorls. Photo: Acteocina atrata Mikkelsen and Mikkelsen, 1984 |
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