Nycticeinops schlieffenii (Peters, 1859)

The karyotype of N. schlieffenii consisted of nine meta- to submetacentric and seven acrocentric autosomal pairs (2n = 34 and FNa = 50). The X chromosomes were medium-sized metacentrics with a G-banding pattern characteristic for vespertilionid state II. In addition to the ancestral four bi-armed pairs, 1/2, 3/4, 5/6 and 16/17, derived Robertsonian fusion chromosomes 7/11, 8/12, 9/13, 10/14 and 21/22 were observed (Fig. 11).

The SC close to the centromere of the acro-centric chromosome 15 was confirmed by AgNOR staining as nucleolus organizer region. The mean number of active NORs per cell was 1.9 (16 cell scored). Apart from the centromeres, C-positive heterochromatin was present in the proximal part of one of the two smallest acrocentric pairs, homologous to MMY24 or MMY25 (Fig. 6C). The chromosomes 1/2, 11, 12, and 15 were present in vespertilionid state II.