Direct development in two Myobatrachid Frogs, arenophryne rotunda Tyler and Myobatrachus gouldii Gray, from Western Australia

M. Antis, Dale Roberts, R. Altig

Research output: Contribution to journalArticle

Abstract

Australia's documented frog diversity slowly continues to growowing to genetic tests for cryptic species and ongoing exploration of remoteregions. Recent collecting trips in Western Australia's east Kimberley regionresulted in the discovery of a new rock-dwelling hylid frog, Litoria staccatosp. novo The new species is closely related to the much more widelydistributed L. coplandi, which also breeds in the same rocky creeks. Litoriastaccato sp. novo is a small to moderate-sized frog characterised from cooccuringspecies by a combination of a moderately pointed snout, expandedterminal discs, half-webbed toes and a mottled appearance with variablecolouration (reddish brown, grey or beige). The advertisement call consists ofa rapid burst of irregularly-spaced notes, followed by groups of softer callscomprised of single or complex notes. Compared to L. coplandi, L. staccatosp. novo is slightly smaller, has reduced webbing between the toes, differentcolouration and pattern (including diffuse vertebral and dorsolateral stripes),reduced glandular tissue at the angle of the jaw and a highly divergent call.Tadpoles show some adaptations to stream-living but also have body shapeaffinities associated with ground hylid pond-dwelling types such as L.inermis. The new species has only been found near Wyndham in the far northof Western Australia, and no specimens have been detected in existingmuseum collections indicating a restricted distribution. Owing to itsremoteness and complex geology, the Kimberley region may
Original languageEnglish
Pages (from-to)259-271
JournalRecords of the Western Australian Museum
Volume23
Publication statusPublished - 2007

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