A study of a population of Canarium (Canarium) urceus (Mollusca, Strombidae) from Nha Trang, Vietnam

[Extract] The Molluscan family Strombidae Rafinesque, 1815 is taxonomically diverse, with a widespread global distribution. However, the population structure of many of these taxa remains enigmatic. There is a growing interest in exploring population structures within species across their distributions to understand factors affecting morphological diversity. In particular, there is an inherent focus on sexual-size dimorphism between females and males in both physiology and shell morphometrics, as well as sexual bias (Mutlu 2004; Maxwell et al. 2017, 2020a, 2021), in order to provide a basis from which models of sexual dimorphism in general might be generated