- Polinices lewisii
name = "Polinices lewisii"
genus = "Polinices"
species = "P. lewisii"
binomial = "Polinices lewisii"
binomial_authority = (Gould, 1847)
Being the largest of the moon snails, the shell can reach up to 14 cm across, but its body can appear larger than that.
This species can be found from southern
Alaskato northern Mexico, as well as Japan.
intertidally at depths of up to 180 m, usually in the substrate looking for its prey.
The moon snail's most distinguishing characteristic is probably its extremely large foot which usually extends up over the shell and mantle cavity. Part of the contains a black-tipped siphon which leads water into the mantle cavity. The
cephalic tentacles, located on its head, are usually visible above the propodium.
"Polinices lewisii" feeds mainly on
bivalve molluscs by drilling a hole in the shell with its radulaand feeding on the organism's soft parts.
"Polinices lewisii" lay their eggs in the core of a "
sand collar". The eggs may number in the thousands and hatch into microscopic larvae which then swimand feed on planktonuntil they undergo torsion and metamorphoseinto small versions of the adult "Polinices lewisii".
* Brusca, Richard C., and Brusca, Gary J. "Invertebrates." 2nd. Sunderland, MA: Sinauer Associates, Inc., 2003.
* Nybakken, James W. "Diversity of the Invertebrates." Dubuque, IA: Times Mirror Higher Education Group, Inc., 1996.
* Lamb, A. and Hanby, B. P. (2005). "Marine Life of the Pacific Northwest: A Photographic Encyclopedia of Invertebrates, Seaweeds, and Selected Fishes." Maderia Park, B. C. Harbour Publishing.
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