Microauris Aurantolabium
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''Microauris'' is a
monotypic In biology, a monotypic taxon is a taxonomic group (taxon) that contains only one immediately subordinate taxon. A monotypic species is one that does not include subspecies or smaller, infraspecific taxa. In the case of genera, the term "unisp ...
genus of
agamid Agamidae is a family containing 582 species in 64 genera of iguanian lizards indigenous to Africa, Asia, Australia, and a few locations in Southern Europe. Many species are commonly called dragons or dragon lizards. Overview Phylogenetically, ...
lizard. Its only species is ''Microauris aurantolabium'', also known as the small-eared dragon or orange-lipped forest lizard, found in the forests of the southern Western Ghats and is currently known from the
Kalakkad Mundanthurai Tiger Reserve Kalakkad Mundanthurai Tiger Reserve (KMTR) located in the South Western Ghats montane rain forests in Tirunelveli district and Kanyakumari district in the South Indian state of Tamil Nadu, is the second-largest protected area in Tamil Nadu. I ...
. The
species A species () is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. It is the basic unit of Taxonomy (biology), ...
was formerly included in '' Pseudocalotes andamanensis'' of the
Andaman Islands The Andaman Islands () are an archipelago, made up of 200 islands, in the northeastern Indian Ocean about southwest off the coasts of Myanmar's Ayeyarwady Region. Together with the Nicobar Islands to their south, the Andamans serve as a mari ...
,Ishwar, N.M. & Das, I. 1998 Rediscovery of ''Calotes andamanensis'' Boulenger 1891, and a reassessment of the type locality. J. Bombay Nat. Hist. Soc. 95: 513-514 but recognized as distinct in 2008. It was also classified under ''Calotes'' until 2018, where it was transferred to its own genus, ''Microauris'', on the basis of its divergence from ''Calotes''.


Description

This species is diagnosed by having orange colored upper lips, green body; acutely keeled scales over body (dorsally and ventrally), head, and throat; postero-ventral orientation of the dorsal scales; antehumeral pit absent; 63 scales around midbody; small tympanum (5.5% HL); toe III and IV subequal. Distinguished from '' Pseudocalotes andamanensis'' in having acutely keeled dorsals, all of which are directed posteroventrally; antehumeral pit absent; acutely keeled ventrals, limb and head scales; smaller occipital, nuchal, temporal regions. Distinguished from all known species of the ''
Calotes versicolor The oriental garden lizard (''Calotes versicolor''), also called the eastern garden lizard, Indian garden lizard, common garden lizard, bloodsucker or changeable lizard, is an agamid lizard found widely distributed in Indo-Malaya. It has also be ...
'' group in having posteroventral orientation of dorsal scales (posterodorsal in ''C. versicolor'' group). Distinguished from species of the '' Calotes liocephalus'' group in lacking antehumeral pit, and in having a proportionately smaller head, ulnar length proportionately longer, tibial length proportionately shorter. Distinguished from '' Monilesaurus rouxii'' and ''
Monilesaurus ellioti ''Monilesaurus ellioti'', also known commonly as Elliot's forest lizard, is a species of arboreal, diurnal, lizard in the family Agamidae. The species is endemic to the Western Ghats, India. Etymology The specific name, ''ellioti'', is in h ...
'' in lacking an antehumeral fold and spines, toe-IV and III subequal. The species was eventually moved to its own genus, ''Microauris'', on the basis of its extremely small tympanum, making it different from members of ''Calotes''. Holotype:
Bombay Natural History Society The Bombay Natural History Society (BNHS), founded on 15 September 1883, is one of the largest non-governmental organisations in India engaged in conservation and biodiversity research. It supports many research efforts through grants and publ ...
(BNHS) 1436 (Orange-lipped forest lizard) an adult female, collected by N. M. Ishwar at Kakkachi in Kalakkad Mundanthurai Tiger Reserve, Tamil Nadu, India in 1997.


References


Further reading

* Boulenger, G.A. 1891 On new or little known Indian and Malayan reptiles and batrachians. Ann. Mag. nat. Hist. (6) 8: 288-292 Agamidae Monotypic lizard genera Reptiles of India Endemic fauna of the Western Ghats {{agamidae-stub