Biometric analysis of two species of amphidromus tree snail with coil dimorphism

Lilian Wan Anyi, (2006) Biometric analysis of two species of amphidromus tree snail with coil dimorphism. Universiti Malaysia Sabah. (Unpublished)

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Abstract

Biometric analysis may reveal the variation and differences between the Amphidromus martensi and Amphidromus inversus for their dextral and sinistral shell. This study has produced a set of morphometric with eleven different variables that have been measured based on certain landmarks on the snail's shell. Multivariate analysis was used and the data showed that the data shows that five characters including shell height, shell width, aperture width inside part, aperture width outside outside part, and the height of penultimate whorl, are the main characters that contribute to the differentiation between the dextral and sinistral Amphidromus martensi shell. For Amphidromus inversus, there are also five characters components which are, the shell height of penultimate whole, aperture width outside part, aperture height, and height of penultimate first whorl, are the main characters that contribute to the differentiation between the dextral and sinistral Amphidromus inversus. This shows partial overlap between sinistral and dextral shell in both Amphidromus martensi and Amphidromus inversus.

Item Type: Academic Exercise
Uncontrolled Keywords: biometric,Amphidromus martensi, Amphidromus inversus, snail, sinistral shell, dextral shell, coil dimorphism
Subjects: Q Science > QH Natural history > QH426 Genetics
Divisions: SCHOOL > School of Science and Technology
Depositing User: MDM SITI AZIZAH IDRIS
Date Deposited: 17 Jun 2013 06:16
Last Modified: 23 Oct 2017 03:59
URI: http://eprints.ums.edu.my/id/eprint/6294

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