Exochohyla Richards, Mahony & Donnellan, 2025

Donnellan, Stephen C., Mahony, Michael J., Esquerré, Damien, Brennan, Ian G., Price, Luke C., Lemmon, Alan, Lemmon, Emily Moriarty, Günther, Rainer, Monis, Paul, Bertozzi, Terry, Keogh, J. Scott, Shea, Glenn M. & Richards, Stephen J., 2025, Phylogenomics informs a generic revision of the Australo-Papuan treefrogs (Anura: Pelodryadidae), Zoological Journal of the Linnean Society 204 : -

Exochohyla Richards, Mahony & Donnellan , gen. nov.

( Fig. 16)

ZooBank LSID: urn:lsid:zoobank.org:act:68B6B5AB-2585-4ED0-8EC2-4A22D7174157 Type species: Hyla prora ( Menzies, 1969) .

Content: Four species— Exochohyla chrisdahli * ( Richards, 2007a) comb. nov., Exochohyla hilli ( Hiaso & Richards, 2006) comb. nov., Exochohyla humboldtorum * ( Günther, 2006c) comb. nov., Exochohyla prora * ( Menzies, 1969) comb. nov.

Diagnosis: Exochohyla can be diagnosed from other pelodryadids by a combination of rostral spike present in both sexes and enlarged tubercles or crenulated ornamentation of the hindlimbs. It can be further diagnosed from Ischnohyla by tadpole oral disc Type 1A vs. 3, and overall tadpole body morphology Type 6 vs. Type 2, a note rate change across the call vs. none. Refer to Tables 1 and 2.

Distribution and ecology: New Guinea and surrounding islands. Arboreal frogs that breed in small forest pools where eggs are known or expected to be glued to leaves overhanging the water until free-swimming tadpoles drop into water to complete development.

Etymology: From the Greek έξοΧος (exochos, projecting or jutting out) and Hyla (the frog genus). The name is feminine.

Remarks: Exochohyla is the equivalent of the Litoria prora Group of Tyler and Davies (1978). A rostral spike is present in both sexes, a unique character among pelodryadids. Litoria rostandi Kraus, 2007 is a junior synonym of Litoria hilli (IUCN SSC Amphibian Specialist Group 2020). Genetic data for L. hilli are not available but its similarity to E. prora was noted in the original description and to E. humboldtorum in Kraus (2007).