Morphological and genetic variations of two earthworm species<em> Metaphire bahli </em>(Gates, 1945) and <em>Metaphire peguana</em> (Rosa, 1890) (Oligochaeta: Megascolecidae) in Vietnam

Thanh Quoc Phan; Duc Anh Nguyen; Truong Xuan Lam; Thi Ngoc Dung Thai; Hai Dang Lam

doi:10.15625/2615-9023/20476

Author affiliations

Authors

Phan Thanh Quoc Institute of Food and Biotechnology, Can Tho University, Can Tho, Vietnam
Nguyen Duc Anh 3Institute of Ecology and Biological Resources, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Ha Noi, Vietnam
Truong Xuan Lam Institute of Ecology and Biological Resources, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Ha Noi, Vietnam
Thai Thi Ngoc Dung Hau Giang Community College, Hau Giang, Vietnam
Lam Hai Dang School of Education, Can Tho University, Can Tho, Vietnam

DOI:

https://doi.org/10.15625/2615-9023/20476

Keywords:

Morphological variation, genetic divergence, earthworms, Metaphire bahli, Metaphire peguana, Vietnam

Abstract

The paper presents the analysis of morphological and genetic variations of two species, Metaphire bahli (Gates, 1945) and Metaphire peguana (Rosa, 1900), from Vietnam. As a result, M. bahli has two morphological forms based on the shape of the male region and state of genital markings while M. peguana has two subspecies, M. peguana peguana, and M. peguana laisonensis. M. peguana peguana had genital markings disc-shaped in 17/18/19 and a diverticulum attached to the base of the ampulla duct while M. peguana laisonensis had genital papillae slit-like shaped in xvii and xix, and diverticulum end at the middle of ampulla duct.

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