FIGURE 7 in A new species of Allobates (Anura: Aromobatidae) from the Tapajós River basin, Pará State, Brazil

FIGURE 7. Comparisons of advertisement calls of Allobates magnussoni with those of similar species by means of 5 s long oscillograms (upper graphs) and sonograms (lower graphs). (A) Continuous emission of single notes split by regular silent intervals, the most frequent call arrangement sampled for A. magnussoni at the species type locality in Parque Nacional da Amazônia (PNA), Pará State, Brazil (INPA-H 32962, 16.8 mm SVL, recorded at 24.4°C). (B) Emission of note-pairs split by regular silent intervals, an alternative call arrangement produced sporadically by a few males sampled in PNA and in Treviso, an additional location on the east bank of the Tapajós River (unvouchered male recorded in PNA at 24.5°C). (C) Call formed by the continuous emission of a single note, produced by a male recorded in Treviso (INPA-H 10108, 15.5 mm SVL, recorded at 23.0°C). Note similarity with calls presented in (A). (D) Advertisement calls of one Allobates flaviventris male recorded at Fazenda Experimental Catuaba, in Acre State (18.2 mm SVL, recorded at 25.0°C). Note shorter intervals between consecutive note-pairs and between notes in the same pair, when compared to those emitted by A. magnussoni (B). (E) and (F) Advertisement calls of two Allobates brunneus males recorded at the species type locality in Chapada dos Guimarães, Mato Grosso State. Notes produced continuously by A. brunneus (E) are shorter and emitted at higher frequency bandwidth when compared to those produced by A. magnussoni (A, B); the former also emits calls in short trills formed by 6–11 notes at air temperatures above 28°C (F). (G) Advertisement call of Allobates crombiei recorded at the species type locality at Cachoeira do Espelho, on the east bank of the Xingu River (17.6 mm SVL, recorded at 25.5°C). (H) Advertisement call of Allobates masniger recorded in PNA (18.2 mm SVL, recorded at 24.3°C) where it occurs syntopically with A. magnussoni.