In Vietnam, a total of seven species of Gekko are currently recognized: G. badenii, G. chinensis, G. gecko, G. grossmanni, G. palmatus, G. scientiadventura, and G. ulikovskii (Rösler et al. 2004; Nguyen et al. 2009). Both Gekko badenii and G. ulikovskii were simultaneously described in 1994 based on the type series collected from Ba Den Mountain in Tay Ninh Province and “Gilai-Con Tum Province” (now Kon Tum Province) near the border with Laos and Cambodia, respectively (Darevsky & Orlov 1994; Szczerbak & Nekrasova 1994).
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Nguyen, Q.T., Schmitz, A. & Böhme, W. 2010. Gekko ulikovskii Darevsky & Orlov, 1994: a junior synonym of Gekko badenii Szczerbak & Nekrasova, 1994. Bonn Zoological Bulletin. 57, 15–17.