ISSN : 1225-3480
The mitotic and meiotic chromosomes of Succineidae snail one species, Oxyloma hirasei(Pilsbry), were investigated by mians of air-drying mithod. The diploid chromosome numbers were n=18, 2n=36. Chromosome complements of this species consist of seven pairs of metacentrics and 11 pairs of submetacentric chromosomes. Spermatogonial metaphase chromosomes range in length from 4.80<TEX>${\mu}{\textrm}{m}$</TEX> for the largest pair to 1.44<TEX>${\mu}{\textrm}{m}$</TEX> for the smallest pair.