摘要 : Mitotic and meiotic chromosomal karyotypes have been described for Gegeneophis ramaswamii and G. usp (unspecified species).Based on the available karyological information from among the eight species of Gegeneophis, a tentative sc... 展开 Mitotic and meiotic chromosomal karyotypes have been described for Gegeneophis ramaswamii and G. usp (unspecified species).Based on the available karyological information from among the eight species of Gegeneophis, a tentative scheme is proposed for their karyotypic phylogeny. A closer scrutiny of one of the two in an otherwise homologous chromosomal pair (chromosome number 13) in the complement is suggestive of a XX-XY sex-chromosome differentiation. 收起