Bioacoustics of Gekko russelltraini

Diagnosis. A medium sized Gekko , SVL to at least 82.9 mm . Gekko russelltraini sp. nov. may be distinguished from its congeners by the following combination of characteristics: Dorsum with 12–16 longitudinal rows of very weakly enlarged, smooth dorsal tubercles (Plate 1B); 90–101 scale rows around at midbody; 28–30 scale rows across venter between ventrolateral folds. Precloacal pores in a continuous series of 8–11 in males (Plate 1C), femoral pores absent. Digit IV of pes with 17–18 lamellae. Dorsal pattern of five to seven white vertebral blotches between nape and sacrum and four to seven pairs of short, sometimes irregular, white bands on flanks between limb insertions. Gekko russelltraini sp. nov. may be distinguished from G. subpalmatus Günther , G. melli Vo g t, G. athymus Brown & Alcala , G. scientiadventura , and G. tawaensis Okada by the presence of dorsal tubercles; from G. tawaensis Okada and G. vertebralis Toda et al. and G. s h i b a t a i Toda et al. by the presence of precloacal pores in males; from G. v i t t a t u s Houttuyn, G. porosus Taylor , G. gigante Brown & Alcala, G. k i k u c h i i Oshima, G. mindorensis Taylor , G. monarchus (Schlegel) , G. romblon Brown & Alcala , G. palawanensis Taylor , G. ernstkelleri Rösler et al. , and G. crombota Brown et al. by the lack of femoral pores in males; from G. g e c k o , G. smithii Gray , G. albofasciolatus Günther , G. siamensis Grossmann & Ulber , and Gekko nutaphandi Bauer et al. by its much smaller size (maximum 83 mm SVL versus 110 mm SVL and greater) and rostral participation in the nostril border, from G. verreauxi Tytler by much smaller size (83 versus 130 mm SVL) and smaller number of lamellae under digit IV of the pes (17–19 versus 21–22); from G. chinensis , G. palmatus , G. similignum Smith , and G. ulikovskii by its lower number of midbody scale rows (90–107 versus 118 or more); from G. japonicus , G. swinhonis Günther , G. auriverrucosus Zhou & Liu , G. scabridus , Liu & Zhou , G. liboensis, Zhou & Li , G. taibaiensis Song, and G. wenxianensis Zhou & Wang by a larger number of lamellae beneath digit IV of the pes (17–18 versus 9 or fewer); from G. hokouensis Pope and G. yakuensis Matsui & Okada by the presence of two (versus one) cloacal spur on each side of tail base; and from G. badenii by a lower number of precloacal pores (8–11 versus 14–18).