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Earless dragons
Tympanocryptis - Peters, 1868

Pronunciation: TIM-pan-oh-KRIP-tiss
Etymology: 'hidden ear'.

Taxonomic notes:

Tympanocryptis taxonomy is currently a mess. Pebble dragon (Tympanocryptis cephalus) specimens from Queensland are now considered to be gibber earless dragon (Tympanocryptis intima), with T. cephalus found only in Western Australia1. Tympanocryptis cephalus specimens from the Pilbara coast around Karatha possibly represent an as yet undescribed species1.

Notes:
Statistics: Reproductive modes:
Oviparous - 11 out of 11 Australian species

Size range:
Smallest Australian species: pebble dragon (Tympanocryptis cephalus) at 5 cm
 Longest Australian species: Eyrean earless dragon (Tympanocryptis tetraporophora) at 7.4 cm
Number of Australian species: 11
 

centralian earless dragon (Tympanocryptis centralis)
The Olgas, Northern Territory
Photo © Dr Danny Brown
centralian earless dragon (Tympanocryptis centralis) distribution range map Tympanocryptis centralis
Centralian earless dragon
Year described
Sternfeld 1924
Description

pebble dragon (Tympanocryptis cephalus)
Pilbara, Western Australia
Photo © Henry Cook
pebble dragon (Tympanocryptis cephalus) distribution range map Tympanocryptis cephalus
Pebble dragon
Year described
G√ľnther 1867
Description

Condamine earless dragon (Tympanocryptis condaminensis)
Bongeen, Queensland
Photo © Ray Lloyd
Condamine earless dragon (Tympanocryptis condaminensis) distribution range map Tympanocryptis condaminensis
Condamine earless dragon
Year described
Melville, Smith, Hobson, Hunjan & Shoo 2014
Description
"A small to medium-sized Tympanocryptis with a well-developed lateral and ventral body patterning, consisting of strongly contrasting brown-black and white irregular banding and speckling. Ventral patterning is concentrated on the head, throat and upper chest, extending posteriorly toward the lateral portions of the belly. Individuals with heavy ventral patterning usually have a narrow longitudinal stripe of white along the centreline of the upper third of the chest. Distinct irregular, dorso-ventral banding of brown-black and white colouration along the sides below a narrow but continuous white lateral stripe, which runs from axilla to groin. Ventral and lateral contrasting patterning consists of more white than brown-black. Three well defined pale spots on dorsal surface of snout: one above each nostril and one at end of snout. Inter-nasal scales .10. Scales on dorsal surface of the torso are heterogeneous with interspersed un-keeled, weakly keeled and strongly keeled scales. A distinct narrow white stripe running along the posterior edge of the thigh, extending onto the base of the tail. Femoral pores absent; preanal pores 2."

Nullarbor earless dragon (Tympanocryptis houstoni)
Brooks Soak, Western Australia
Photo © Brad Maryan
Nullarbor earless dragon (Tympanocryptis houstoni) distribution range map Tympanocryptis houstoni
Nullarbor earless dragon
Year described
Storr 1982
Description

gibber earless dragon (Tympanocryptis intima)
Idalia National Park, Queensland
Photo © Stewart Macdonald
gibber earless dragon (Tympanocryptis intima) distribution range map Tympanocryptis intima
Gibber earless dragon
Year described
Mitchell 1948
Description

lined earless dragon (Tympanocryptis lineata)
Moorrinya National Park, Queensland
Photo © Angus McNab
lined earless dragon (Tympanocryptis lineata) distribution range map Tympanocryptis lineata
Lined earless dragon
Year described
Peters 1863
Description

No thumbnail available five-lined earless dragon (Tympanocryptis pentalineata) distribution range map Tympanocryptis pentalineata
Five-lined earless dragon
Year described
Melville, Smith, Hobson, Hunjan & Shoo 2014
Description

grassland earless dragon (Tympanocryptis pinguicolla)
Gravid female curled under rock. Cooma, New South Wales
Photo © Emma Carlson
grassland earless dragon (Tympanocryptis pinguicolla) distribution range map Tympanocryptis pinguicolla
Grassland earless dragon
Year described
Mitchell 1948
Description

Eyrean earless dragon (Tympanocryptis tetraporophora)
Moon Plain, South Australia
Photo © Matthew Bonnett
Eyrean earless dragon (Tympanocryptis tetraporophora) distribution range map Tympanocryptis tetraporophora
Eyrean earless dragon
Year described
Lucas & Frost 1895
Description

No thumbnail available even-scaled earless dragon (Tympanocryptis uniformis) distribution range map Tympanocryptis uniformis
Even-scaled earless dragon
Year described
Mitchell 1948
Description

Roma earless dragon (Tympanocryptis wilsoni)
Roma, Queensland
Photo © Steve Wilson
Roma earless dragon (Tympanocryptis wilsoni) distribution range map Tympanocryptis wilsoni
Roma earless dragon
Year described
Melville, Smith, Hobson, Hunjan & Shoo 2014
Description
"A small to medium-sized Tympanocryptis with a well-developed lateral and ventral body patterning, consisting of extensive brown-black speckling. Ventral patterning is concen- trated on the head, throat and upper chest, extending posteriorly toward the lateral portions of the belly. Heavy brown-black speckling along the sides but white lateral stripe is absent. Ventral and lateral patterning black-brown colouration is greater than white. Three well defined pale spots on dorsal surface of snout: one above each nostril and one at end of snout. Inter-nasal scales ,10. Scales on dorsal surface of the torso are heterogeneous with interspersed un-keeled, weakly keeled and strongly keeled scales. Femoral pores absent; preanal pores 2."

References
  1. Shoo, LP; Rose, R.; Doughty, P.; Austin, J.J.; & Melville, J. (2008). Diversification patterns of pebble-mimic dragons are consistent with historical disruption of important habitat corridors in arid Australia. Molecular phylogenetics and evolution, 48(2):528-542.
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