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Lialis burtonis GRAY, 1834

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Higher TaxaPygopodidae, Gekkota, Sauria, Squamata (lizards)
Common NamesE: Burton's Snake-lizard, Burton's Legless Lizard
G: Burtons Spitzkopf-Flossenfuß 
SynonymLialis burtonis GRAY 1835: 134
Lialis Burtonii — DUMÉRIL & BIBRON 1839: 831
Lialis bicatenata GRAY 1842
Lialis punctulata GRAY 1842
Ophiophthalmus FITZINGER 1843 (nom. subst. pro Lialis)
Lialis leptorhyncha PETERS 1873: 605
Lialis punctulata var. concolor PETERS 1873: 606
Lialis burtonii — BOULENGER 1885: 247
Lialis burtonii — LUCAS & FROST 1894: 41
Lialis burtoni — WANDOLLECK 1911
Lialis burtoni [sic] — DE ROOIJ 1915: 63
Lialis burtonii — GLAUERT 1956
Lialis burtonii — KLUGE 1974: 128
Lialis burtonis — RÖSLER 1995: 88
Lialis burtonis — COGGER 2000: 294
Lialis burtonis — WILSON & SWAN 2010
Lialis burtonis — LIVIGNI 2013: 265 
DistributionAustralia (New South Wales, Northern Territory, Queensland, South Australia, Victoria, Western Australia),
Indonesia (Aru Islands and S Irian Jaya; E. COLIJN, pers. comm.)

Type locality: Round Hill Fauna Reserve, between Lake Cargelligo and Mt. Hope, in 32° 58’ S, 146° 10’ E, N. S. W.; original type locality N. S. W. (as Nova Cambria Australi).  
TypesNeotype: AMS (AM) R27914, designated by Kluge (1974).
Syntypes: ZMB 5585 [Lialis leptorhyncha PETERS 1873]
Syntypes: ZMB 5323 [Lialis punctulata var. concolor PETERS 1873] 
DiagnosisDIAGNOSIS (genus): Lialis differs from all other pygopodid genera in possessing the following combination of character states: a) snout extremely long and pointed, b) head covered with many small scales, large plates absent, c) external auditory meatus present, d) body scales smooth, e) more than 17 midbody scale rows, f) preanal pores present, g) usually one hind limb scale (Kluge 1974: 128).

Description (species): Snout long, depressed, pointed, with angular canthus rostralis, four or five times as long as the eye, which is small and surrounded by a circular, scaly, rudimentary lid, its diameter is contained thrice in the distance between the nostril and the orbit; ear-opening elliptical or roundish, oblique. Snout covered with small plates, varying in number. Rostral low, more than twice as broad as high, on the lower surface of the snout; nostril in the posterior part of a nasal; three supraoculars, median large; 13-17 small upper labials, separated from the orbit by 2 or 3 rows of scales, 12-16 lower labials; mental rather large, pentagonal; on each side of the throat a series of enlarged scales, separated from the labials by one or two rows of scales. Nineteen to twenty-one scales round the middle of the body; the enlarged ventrals in 70-100 pairs. Four praeanal pores, sometimes indistinct in females; 3 or 5 anal scales (fig, 40). Small rudiments of external hind limbs. Tail about as long as head and body, tapering to a fine point, covered below with transversely enlarged scales (de Rooij 1915: 62).

Coloration: Brown, grey, reddish or yellowish above, variously marked or uniform. Very variable. (de Rooij 1915: 62).

Size: Length of Gray. Four praeanal head and body 247 mm; tail 270 mm (de Rooij 1915: 62). 
CommentSynonymy after COGGER 1983. Extremely variable species.

Limb morphology: Limbless.

Type species: Lialis burtonis GRAY 1835 is the type species of the genus Lialis GRAY 1835, which is the type genus of the family Lialisidae GRAY 1841 (now a synonym of Pygopodidae). 
EtymologyNamed after Major Edward Burton (1790-1867), an army surgeon stationed at Chatham, England (1829-1837). He wrote A Catalogue of the Collection of Mammalia and Birds in the Museum at Fort Pitt, Chatham (1838).  
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