Bioacoustics of Vitreorana assuh

Etymology. The specific epithet assuh comes from the word açu of the Tupi linguistic trunk, which is an adjective, meaning “large” or “elongated”. Tupi was the main language used by native people on the Atlantic Forest coast before European contact. By naming this species using a Tupi word, we want to pay homage to these residents of the Atlantic Forest and their contribution to shaping current Brazilian culture. Characterization. (1) dentigerous process of vomer with four to five teeth; (2) snout subovoid in dorsal view and sloping in profile view; (3) tympanum visible, directed upward, rounded, diameter 28.9–34.3% the diameter of eye, tympanic annulus visible except for upper border covered by weak supratympanic fold extending from behind the eye until the shoulder; tympanic membrane differentiated and partially translucent, lower portion enameled with a thick layer of iridophores and upper portion pigmented as surrounding skin; (4) dorsal skin texture shagreen; small spicules present; (5) ventral surface areolate; cloacal ornamentation consisting of a fold above the cloaca, an aggregation of small and thickened tubercles, spiculated, and a pair of tubercular prominences in each side of cloacal opening, giving an aspect of a fold in ventral view; subcloacal warts absent; (6) parietal peritoneum translucent (condition P0), pericardium and hepatic, urinary bladder, kidneys, and gonads peritonea white; gastrointestinal peritoneum translucent (condition V4 ); (7) bulbous liver, covered by white peritoneum (condition H2); (8) humeral spine absent; (9) webbing absent between fingers II and III, reduced between fingers III and IV, and moderate between fingers IV and V, webbing formula: III (2 –– 2) ( 32/3 ) IV ( 11/4 –2) (2 – ) V; (10) webbing between toes moderate, webbing formula: I (1 –– 1) (1 + – 11/3 ) II (1 –– 1 + ) ( 11/3 – 11/2 ) III (0 + –1 + ) (2 –– 2 + ) IV (2 –– 2) (1–1 + ) V; (11) low and hardly appreciable outer ulnar and tarsal folds, extending to the base of the Finger V and Toe V, respectively, formed by a thin line of enameled skin visible under magnification; inner tarsal fold present; (12) concealed prepollex; in male, nuptial pad formed by densely packed glands, forming a defined pad, pale colored, on dorsomedial surface of Finger I ( Type I); (13) Finger II shorter than Finger III (Finger II length 90.5–90.9% of Finger III); (14) disc of Finger IV moderate, its width 47.4–57.1% of eye diameter; (15) in life, dorsum leaf green with yellow hues and reticulated with dark green punctuations and flecks; bones green (16) in preservative, background coloration cream with melanophores of two types , minute and star-shaped, the latter may be occasional clustered forming larger dark spots; (17) in life, iris light brown with thin golden encircling reticulations and some thick black reticulations, light brown circumpupillary ring, in preservative, silvery white with lavender encircling reticulations; (18) hands and feet yellowish; melanophores present in dorsal side of fingers III, IV, and V and toes III, IV, V, but at lower density in Finger III and Toe III; (19) large body size; adult male SVL 30.9 mm ; adult female SVL 34.1 mm . The following traits commonly used to characterize species of glassfrogs are unknown: advertisement call, position of calling males, male fighting behavior, oviposition site, parental care, and tadpole.