Modulus modulus explained

Modulus modulus, commonly known as the buttonsnail, is a species of small sea snail, a marine gastropod mollusc in the family Modulidae.

Distribution

The distribution of this species includes both the east and west coast of Florida.

Description

The maximum recorded shell length is 16.5 mm.^[1] The overall shape of the shell is button-like, with a gray or brown streaked, ridge-sculptured body whorl and a low spire.

Habitat

The minimum recorded depth is 0 m.^[1] The maximum recorded depth is 105 m.^[1]
Found in shell grit and coral sand, among sea grass beds -at 2 to 3 feet depth.

References

• Florida's Living Beaches by Blair and Dawn Witherington, 2010, Pineapple Press, Inc.

Notes and References

1. Welch J. J. (2010). "The "Island Rule" and Deep-Sea Gastropods: Re-Examining the Evidence". PLOS One 5(1): e8776. .