The adult males were collected at Jowai, Assam, during April-May 1991, the slides were made according to the method described by R. SANDHU & G.K. WALIA (1994, Fraseria [NS] I: 11-14). At spermatogonia! metaphase, there are 25 elements, including an m-pair and the X. The latter is the smallest of the set. During meiosis I, there are no peculiarities, a single chiasma appears across each of the 12 bivalents (cf. Fig. 1).