(0.41)
| | | | |
Costa Rica: Puerto | 22 | 26.3-32.4| 0.49-0.54 |0.48-0.65| 0.38-0.45
Viejo | | (29.7) | (0.52) | (0.57) | (0.42)
| | | | |
Costa Rica: Turrialba| 95 | 28.1-35.0| 0.47-0.56 |0.47-0.68| 0.37-0.46
| | (30.6) | (0.51) | (0.56) | (0.41)
| | | | |
Costa Rica: Bataan, | 26 | 26.3-32.7| 0.47-0.54 |0.45-0.66| 0.36-0.44
Limon, and Suretka | | (30.0) | (0.51) | (0.50) | (0.41)
| | | | |
Costa Rica: Piedras | 21 | 33.3-37.7| 0.50-0.54 |0.48-0.64| 0.40-0.46
Blancas | | (35.2) | (0.51) | (0.57) | (0.43)
| | | | |
Costa Rica: Rincon de| 24 | 31.4-35.9| 0.50-0.56 |0.45-0.61| 0.40-0.46
Osa | | (34.1) | (0.53) | (0.54) | (0.43)
| | | | |
Panama: Bocas del | 6 | 31.0-33.5| 0.49-0.54 |0.47-0.50| 0.41-0.43
Toro | | (32.1) | (0.51) | (0.48) | (0.42)

[Illustration: PLATE 1

Living _Hyla_: (A) _H. boulengeri_ (KU 86322) and (B) _H.
foliamorta_ (KU 101576), x 2.]

[Illustration: PLATE 2

Living _Hyla:_ (A) _H. elaeochroa_ (KU 91688), (B) _H. staufferi
staufferi_ (KU 57791), and (C) _H. staufferi altae_ (KU 101688), x
2.]

[Illustration: PLATE 3

Audiospectrograms and sections of mating calls of (A) _Hyla
boulengeri_ (KU Tape No. 511) and (B) _H. foliamorta_ (KU Tape No.
511) and (B) _H. foliamorta_ (KU Tape No. 288).]

[Illustration: PLATE 4

Audiospectrograms and sections of mating calls of (A) _Hyla
elaeochroa_ (KU Tape No. 97), (B) _H. s. staufferi_ (KU Tape No.
93), and (C) _H. staufferi altae_ (KU Tape No. 502).]

The prevomer is short, and broadest anteriorly. The prevomer is joined
to the premaxillary by ossification. The posterior margin of the
prevomer bears a narrow cartilaginous articulation with the
sphenethmoid. The anterolateral and posterolateral processes of the
prevomer form an incomplete bony margin to the small choanae; each
prevomer bears four to seven teeth. The palatine is small, curved
anteriorly and edentate. The anterior part of the parasphenoid is
robust and ends in a point. The pterygoid i