Karyology of the Indo-Pacific eleotrid Butis butis (Hamilton-Buchanan) (Teleostei : Gobioidei) from Fiji

Abstract

The diploid number of chromosomes from gills and gonads of Fijian specimens of B. butis was found to be 46, 23 bivalents being observed during the meiotic division in spermatocytes. The karyotype comprised 23 pairs of acrocentric chromosomes, giving an arm number of 46. The karyotype of B. butis is compared with that of other eleotrid gobioids, and a possible mechanism of its derivation is suggested.