Figure 2.

Karyograms from metaphase plates of female embryos of three of the studied species; gonosomes could not be identified. (a) Female M. extradentata have 19 chromosome pairs, i.e., most likely a karyotype 36,XX. (b) For female Sungaya inexpectata no complete metaphases could be obtained; here we show one incomplete metaphase with 53 chromosomes and 32 different chromosome pairs identified—lacking chromosomes are indicated by a V. Still, it is obvious that this species is diploid. (c) Female Sipyloidea sipylus have 22 chromosome pairs, i.e., most likely a karyotype 42,XX.