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Hidetoshi Ota, Tsutomu Hikida, A New Triploid Hemidactylus (Gekkonidae: Sauria) from Taiwan, with Comments on Morphological and Karyological Variation in the H. garnotii-vietnamensis Complex, Journal of Herpetology, Vol. 23, No. 1 (Mar., 1989), pp. 50-60
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Ota et al. (1989) studied this question.
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