============================================================================ | |Notes| | | | Major frequencies | | per |Duration| Pulses|Fundamental| (cps) | |call | of note| per | frequency |--------------------- Species | N |group| (sec.) | second| (cps) | Lower | Upper ---------------+---+----+---------+-------+-----------+---------+----------- H. boulengeri | 8 | 1 | 0.24- | 80-120| 70-74 |1400-1820|2520-3182 | | | 0.47 | (101)| (71) | (1611) | (2840) | | | (0.35) | | | | | | | | | | | H. foliamorta | 7 | 1 | 0.23- | 50-60 | 52-61 | 912-1026|2736-3477 | | | 1.86 | (51) | (56) | (918) | (3055) | | | (0.69) | | | | | | | | | | | H. elaeochroa |15 | 2-95| 0.12- | 40-50 | 48-65 |1254-1586|2562-3477 | | (19)| 0.24 | (42) | (57) | (1499) | (2911) | | | (0.17) | | | | | | | | | | | H. s. staufferi|18 | 2-77| 0.13- |100-130| 96-130 |1582-1872|1962-3744 | | (23)| 0.23 | (120) | (106) | (1743) | (3056) | | | (0.18) | | | | | | | | | | | H. s. altae | 7 | 2-22| 0.14- |110-130| 104-117 |1853-2106|3379-4056 | | (11)| 0.18 | (120) | (112) | (2008) | (3775) | | | (0.15) | | | | _Cranial Osteology._--The skull of _Hyla boulengeri_ is as long as it is wide, and is flat; the premaxillary is small and bears 13 to 17 teeth (mean for 6 specimens, 14.9). The alary processes of the premaxillaries are widely separated, concave posteriorly, and vertical. Ventrally, the premaxillary is connected to the prevomer by bony tissues. The maxillary is slender and bears 70 to 91 teeth (mean for 6 specimens 78.1). The pars facialis of the maxillary is laterally convex and about four times as high as the pars dentalis. The nasal is large (its length about 40 per cent of total length of skull), and pointed anteriorly and posteriorly in dorsal view. The nasals are separated anteromedially by the cartilaginous septum nasi. One or two protuberances are present on the midlateral concavity of the nasal. Posteriorly, the nasal overlaps the sphenethmoid and articulates with the palatine. Dorsally the sphenethmoid is large, pentagonal, and completely ossified. The frontoparietal is elongate, smooth, and bears a small supraorbital process on the anterior edge of the orbit. A keyhole-shaped frontoparietal fontanelle is present; the fontanelle is narrow anteriorly and wide posteriorly.