Cytogenetical analysis
S. anjanericus and S. bombayensis exhibited the somatic count of 2n =20 chromosomes. The former species had chromosomes with median region centromeres (10m) whereas in the latter nine pair had median region centromeres (9m) and one pair a sub-median centromere region (1sm). The karyotype was bimodal in both the species. Of the 10 pairs, two pairs were conspicuously larger than the remaining eight pairs. The first pair was characterized by the presence of a secondary constriction (Figs. 3–­4). In S. anjanericus the secondary constriction was on the short arm whereas in S. bombayensis it was on the long arm. Comparative karyotypes of both the species are given in Table 2.