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Observations on the Behavior and Shell Types of Cypraea moneta (Mollusca, Gastropoda) at Enewetak, Marshall Islands

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Title:Observations on the Behavior and Shell Types of Cypraea moneta (Mollusca, Gastropoda) at Enewetak, Marshall Islands
Authors:Renaud, Maurice L.
Date Issued:Apr 1976
Publisher:University of Hawaii Press
Citation:Renaud ML. 1976. Observations on the behavior and shell types of Cypraea moneta (Mollusca, Gastropoda) at Enewetak, Marshall Islands. Pac Sci 30(2): 147-158.
Abstract:Aspects of the ecology and behavior of knobby and smooth Cypraea
moneta at Enewetak Atoll, Marshall Islands, are presented. The habitats of C.
moneta are described. A series of experiments based on aggregation, feeding, and
male-female pairing indicated similarities and differences between the smooth and
knobby forms. Smooth morphs follow mucous trails only of other smooth-shelled
forms of C. moneta, whereas knobby morphs follow the mucous trails of both
knobby and smooth forms. The most preferred alga of the smooth morphs is Jania
capillacea, the most abundant species in intertidal areas; and that of the knobby
morphs is Schizothrix calcicola, a common subtidal species. Male-female pairs constituted
80 percent of the intertidal samples and 81 percent of the subtidal ones.
In addition, smooth and knobby morph distributions were investigated in the
Line Islands and elsewhere in Micronesia as well as at Enewetak. In all cases the
smooth morph was found in the intertidal zone and the knobby morph in the subtidal.
Appears in Collections: Pacific Science Volume 30, Number 2, 1976

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