Bioacoustics of Cristidorsa otai

From J. sagittifera (in parenthesis) it can be distinguished by having a greater number of SL, 10–11 (vs. 7–8) and IL , 9–12 (vs. 7–8), fewer MD, 45–47 (vs. 53–58) and fewer 4ToeLam 21–22 (vs. 25–27). Male colouration (in alcohol): dorsal surfaces of arms and legs and lateral surfaces of the head and body, dark brownish black (vs. light blue), ventral colouration of the male, solid brownish black on the throat and anterior chest, breaking up posteriorly into blotches and spots on an otherwise light cream background (vs. males with throat, chest and abdomen primarily creamy white, with or without sparse brown speckling on the anterior throat and abdomen). From the species possessing a concealed tympanum, J. otai sp. nov. differs from J. andersoniana Annandale, 1905 , by its smaller adult size, SVL 46.4–58.7 mm (vs. to 75 mm ), absence (vs. presence) of a nuchal crest and gular pouch, body subquadrangular (vs. moderately compressed laterally), lower number of 4ToeLam, 21–22 (vs. 28), and fewer MD, 45–47 (vs. 81). From J. variegata Boulenger, 1853 , by its smaller adult size, SVL 46.4–58.7 mm (vs. 59.6–95.4 Ota (1989c) , to 110 mm (Smith 1935)) , absence (vs. presence) of a raised dorsal and nuchal crest and gular pouch and absence (vs. presence) of a wide lateral white stripe in males. From J. hamptoni Smith, 1935 , J. yunnanensis Anderson, 1878 , J. flaviceps Barbour & Dunn, 1919 , and J. splendida Barbour & Dunn, 1919 , by its smaller adult size, SVL < 58.7 mm (vs. to 77.2 mm , 75 mm , 86 mm , and 89.8 mm respectively) and absence (vs. presence) of a light lateral stripe and gular pouch, and further from J. hamptoni by absence (vs. presence) of a gular pouch and shorter head length, HW/HL 77– 82.6% (vs. approximately 66.7 %). From J. fasciata Mertens, 1926 , by smaller adult size, SVL to 58.7 mm (vs. to 71 mm ), absence (vs. presence) of a nuchal crest and wide light transverse band on the body, and higher number of MD, 45–47 (vs. 35–38). From J. micangshanensis Song, 1987 , and J. zhaoermii Gao & Huo, 2002 , by absence (vs. presence) of a wide yellow/white longitudinal stripe and raised nuchal and dorsal crest in males, and male body subquadrangular (vs. moderately compressed), further from J. micangshanensis by having a longer hind limb length, reaching between the eye and snout (vs. to the neck) and from J. zhaoermii by absence (vs. presence) of a prominent green gular pouch in males and smaller adult size, SVL to 58.7 mm (vs. to 85 mm ). From J. batangensis Li, 2001 , by absence (vs. presence) of a wide yellow longitudinal stripe and male body subquadrangular (vs. moderately compressed). J. otai sp. nov. differs from J. chapaensis Bourret, 1937 in having, fewer 4ToeLam, 21–22 (vs. 28–30), more MD, 45–47 (vs. 35–37), SL 10–11 (vs. 7– 8) and IL , 9–12 (vs. 7). From the east Asian insular species, it differs from J. brevipes Gressit, 1936 , by having longer hind limbs, reaching between the eye and snout (vs. from the hidden tympanum to the posterior edge of the eye), a considerably shorter tail, TailL/SVL 160.5–187.5% (vs. 241.7–268.1%) and a greater number of SL, 10–11, (vs. 7–9). From J. luei Ota, Chen & Shang, 1998 , and J. makii Ota, 1989 c, in body shape, primarily subquadrangular (vs. moderately compressed), smaller adult size, males 46.6 mm , females 52.2–58.7 mm (vs. males 65.2–74.5 mm , females 68.2 mm and males 63–78.8 mm , females 60.6–71.6 mm respectively), fewer 4ToeLam, 21–22 (vs. 24–28 and 28–30, respectively) and absence (vs. presence) of a nuchal crest. From J.