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Reproductive Data for Crucibulum spinosum (Sowerby)
egg diameter -
reproductive season summer
development eggs are incubated; after 2-3 weeks larvae hatch as veliger
occurrence Indo-Pacific; Introduced to Hawaii; sublittoral rocks and dead coral; in Hawaii found in Kaneohe Bay
references J.B. Taylor in Planktonic Prosobranch Veligers of Kaneohe Bay, 1975

Phylogenetic Information
phylum Mollusca
class Gastropoda (subclass Prosobranchia)
order Neotaenioglossa
family Calyptreidae
genus Crucibulum
species spinosum (Sowerby)
reproduction method sexual, eggs deposited on rockes and brooded under mantle near head