Morphological variation in the painted topshell Calliostoma zizyphinum (L.) (Prosobranchia:Trochidae), from inter-tidal rapids on the Irish coast

O'Loughlin, Eugene and Aldrich, J. C. (1987) Morphological variation in the painted topshell Calliostoma zizyphinum (L.) (Prosobranchia:Trochidae), from inter-tidal rapids on the Irish coast. Journal of Molluscan Studies, 53 (3). pp. 267-272. ISSN 1464-3766

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Abstract

Shell shape variation in Calliostoma zizyphinum (L.) is examined with different techniques of analysis (profile, discriminant, canonical variate and ratio analysis). Shells are collected from five tidal rapids systems, all in very sheltered inlets, where C. zizyphinum is to be found at shore levels higher than the normal shore distribution of LWNT to the sublittoral. Shell morphology varies consistently with the local habitat conditions, such as water flow rate, relative exposure and shore level. populations can be distinguished using various shell parameters and shell profiles. Shells from two different levels in the same rapids show the effects of their subtly different habitats.

Item Type:	Article
Subjects:	Q Science > QH Natural history > QH301 Biology
Divisions:	School of Computing > Staff Research and Publications
Depositing User:	Caoimhe Ní Mhaicín
Date Deposited:	05 May 2014 12:28
Last Modified:	05 May 2014 12:28
URI:	https://norma.ncirl.ie/id/eprint/1205

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