GIANT WHELKS, OR PEAR CONCHS, AND EGG RIBBON 1 Left-banded Whelk, Fulgur perversa. 3 Operculum of Fulgur perversa.
2 Egg Ribbon of F . canal iculatu s . Several embryos develop in each capsule. 4 Channeled Whelk, Fulgur canaliculatus.

e:: The Whelks. Trumpet Shells
C. cancellaria, Conr., is ash-coloured, has strong spiral ribs, crossed by longitudinal folds, forming fine tubercles. Lip strongly lined within; spire prolonged; canal recurved. Length, l to inches.
Habitat.— Gulf of Mexico.