Nucleolaria nucleus (Linnaeus, 1758)
Nucleus
cowry, 13-27mm
Nucleolaria nucleus is
found in a variety of atoll habitats, including under rocks on the intertidal
reef such as that between Kwajalein and Little Bustard. It can be found under
rocks on shallow subtidal lagoon reefs and under large boulders on flat-topped
lagoon pinnacles such as those near Kwadak Island. It is also often seen at
night in surge channel caves on the seaward leeward reef, especially those shallower
ledges near the tops of the channels. Specimens are also not rare on the windward
seaward reef under boulders on the hard reef flat to depths of about 13m. This
species has the most prominently granulose surface of the cowries in the Marshalls.
This species is widely distributed across the Indo-Pacific.
The long mantle papillae effectively camouflage the shell beneath.
Three shots of a juvenile shell
with long papillae.
18.45mm, 16 May 1992
Created
1 April 2008
Updated 23 February 2020
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