A Japanese native goat "Tokara goat" has been bred in Tokara islands, south of Kyushu island in Japan, and keeps peculiar characteristics, namely colored coat, horns, supernumerary teats, no wattles and so on. Using phenotypic homogeneity index (H.I.), the goats bred in Kagoshima Univ. (KGU), Hirakawa Zoo in Kagoshima city (HZK) and Kyushu Univ. (KSU) after introducing from Tokara islands were examined about those peculiar characteristics. Both of male and female goats had small or middle sized horns but not any wattles. All goats in the KGU and HZK populations were covered with their characteristic colored coat, but 32.3% in the KSU with white coat instead of their own coat, supposing Saanen breed crossing. Supernumerary teats were observed at 87.9% of the population in the KSU, 73.8% in the HZK and 71.4% in the KGU. From these results, H .I. was calculated at 0.807 in the HZK, 0 .796 in the KGU and 0.675 in the KSU and indicated the genetic variation differed from the native goats (H.I. =0.830) bred in Takara-jima and Kodakara-jima islands of the Tokara.
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