Takydromus TachydromoidesFight
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''Takydromus'' is a
genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus com ...
of
lizard Lizards are a widespread group of squamate reptiles, with over 7,000 species, ranging across all continents except Antarctica, as well as most oceanic island chains. The group is paraphyletic since it excludes the snakes and Amphisbaenia alt ...
s, commonly called grass lizards or oriental racers.
Species In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate s ...
of the genus ''Takydromus'' are
endemic Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsew ...
to a large part of
Asia Asia (, ) is one of the world's most notable geographical regions, which is either considered a continent in its own right or a subcontinent of Eurasia, which shares the continental landmass of Afro-Eurasia with Africa. Asia covers an area ...
. Members of this genus are noticeable because of their slender appearance and their agile movements. The word ''takydromus'' derives from Greek ταχυδρόμος (''takhudromos''), "fast-running", from ταχύς (''takhus''), "swift" + δρόμος (''dromos''), "course, race".


Description

Members of the genus ''Takydromus'' are extremely slender in appearance. The tail is about 2 to 5 times as long as the snout-vent length. The basic colour is normally brown, often with lateral stripes and dark spots. The dorsal scales are keeled and large. These keels form continuous longitudinal rows. The toes contain lamellae. The collar may be reduced or completely absent.


Distribution and habitat

The lizard genus ''Takydromus'' is found in
Japan Japan ( ja, 日本, or , and formally , ''Nihonkoku'') is an island country in East Asia. It is situated in the northwest Pacific Ocean, and is bordered on the west by the Sea of Japan, while extending from the Sea of Okhotsk in the north ...
, in the Amur region of
Russia Russia (, , ), or the Russian Federation, is a List of transcontinental countries, transcontinental country spanning Eastern Europe and North Asia, Northern Asia. It is the List of countries and dependencies by area, largest country in the ...
, and throughout entire eastern
Asia Asia (, ) is one of the world's most notable geographical regions, which is either considered a continent in its own right or a subcontinent of Eurasia, which shares the continental landmass of Afro-Eurasia with Africa. Asia covers an area ...
to
Indonesia Indonesia, officially the Republic of Indonesia, is a country in Southeast Asia and Oceania between the Indian and Pacific oceans. It consists of over 17,000 islands, including Sumatra, Java, Sulawesi, and parts of Borneo and New Guine ...
. These lizards are mainly terrestrial although some species can be found on trees. Some members of this genus are found both on rocks and in relatively damp forests. Other species inhabit open grasslands.


Reproduction

Females of
species In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate s ...
of ''Takydromus'' lay 1–10 eggs per clutch and up to 6 clutches per year.


Species

The genus ''Takydromus'' belongs to the lizard
subfamily In biological classification, a subfamily (Latin: ', plural ') is an auxiliary (intermediate) taxonomic rank, next below family but more inclusive than genus. Standard nomenclature rules end subfamily botanical names with "-oideae", and zoologi ...
Lacertinae The Lacertidae are the family of the wall lizards, true lizards, or sometimes simply lacertas, which are native to Afro-Eurasia. It is a diverse family with at least 300 species in 39 genera. They represent the dominant group of reptiles found i ...
,
tribe The term tribe is used in many different contexts to refer to a category of human social group. The predominant worldwide usage of the term in English language, English is in the discipline of anthropology. This definition is contested, in p ...
Lacertini, and contains the following species: www.reptile-database.org. *''
Takydromus albomaculosus ''Takydromus albomaculosus'' is a species of lizard in the family Lacertidae. It is endemic to China China, officially the People's Republic of China (PRC), is a country in East Asia. It is the world's most populous country, with a popu ...
'' *''
Takydromus amurensis ''Takydromus amurensis'', the Amur grass lizard, is a species of lizard in the family Lacertidae. It is found in Russia, China, Korea Korea ( ko, 한국, or , ) is a peninsular region in East Asia. Since 1945, it has been divided at or n ...
'' – Amur grass lizard *''
Takydromus dorsalis ''Takydromus dorsalis'', the Sakishima grass lizard, is a species of lizard in the family Lacertidae. It is endemic to the Yaeyama Islands (Ishigaki Island, Iriomote Island, Kohama Island and Kuroshima) in southern Japan. Activity It is diurn ...
'' – Sakishima grass lizard *''
Takydromus formosanus ''Takydromus formosanus'', also known as the Formosa grass lizard, is a species of lizard endemic to Taiwan. Its body is about 6 cm long, and the total length reaches 22 cm. Its back is brown, with a yellow-green stripe on its side. It ...
'' – Formosa grass lizard *''
Takydromus hani ''Takydromus hani'', the southeast Asian green grass lizard , is a species of lizard in the family Lacertidae. It is endemic to Vietnam Vietnam or Viet Nam ( vi, Việt Nam, ), officially the Socialist Republic of Vietnam,., group="n" is ...
'' – southeast Asian green grass lizard *''
Takydromus haughtonianus ''Takydromus haughtonianus'', commonly known as the Goalpara grass lizard, is a species of lizard in the family Lacertidae. The species is endemic to India. Geographic range ''T. haughtonianus'' is found in northeastern India in the Indian state ...
'' – Goalpara grass lizard *'' Takydromus hsuehshanensis'' *'' Takydromus intermedius'' *'' Takydromus khasiensis'' – Java grass lizard, Khasi Hills long-tailed lizard *'' Takydromus kuehnei'' *''
Takydromus luyeanus ''Takydromus luyeanus'' is a species of lizard in the family Lacertidae. It is endemic to Taiwan Taiwan, officially the Republic of China (ROC), is a country in East Asia, at the junction of the East and South China Seas in the northwes ...
'' *''
Takydromus madaensis ''Takydromus madaensis'', the Ma Da grass lizard , is a species of lizard in the family Lacertidae. It is endemic to Vietnam Vietnam or Viet Nam ( vi, Việt Nam, ), officially the Socialist Republic of Vietnam,., group="n" is a country ...
'' – Ma Da grass lizard *''
Takydromus sauteri ''Takydromus sauteri'', known commonly as the Koshun grass lizard, is a species of lizard in the family Lacertidae. The species is endemic to Orchid Island in Taiwan. Etymology The specific name, ''sauteri'', is in honor of German entomologist ...
'' – Koshun grass lizard *''
Takydromus septentrionalis ''Takydromus septentrionalis'', the China grass lizard, is a species of lizard in the family Lacertidae. It is endemic to China China, officially the People's Republic of China (PRC), is a country in East Asia. It is the world's most po ...
'' – China grass lizard *''
Takydromus sexlineatus ''Takydromus sexlineatus'', the Asian grass lizard, six-striped long-tailed grass lizard, or long-tailed grass lizard, is an arboreal, diurnal species of lizard. The tail length is usually over three times the body (snout to vent) length in thi ...
'' – Asian grass lizard, six-striped long-tailed grass lizard, long-tailed grass lizard *'' Takydromus sikkimensis'' – Sikkim grass lizard *''
Takydromus smaragdinus ''Takydromus smaragdinus'', the green grass lizard, is a species of lizard in the family Lacertidae. Geographic range It is endemic to the Ryukyu Islands in southern Japan, including the Tokara Islands Takarajima and Kodakarajima, the Amami Is ...
'' – green grass lizard *''
Takydromus stejnegeri ''Takydromus stejnegeri'' is a species of lizard in the family Lacertidae. The species is endemic to Taiwan. Etymology The specific name, ''stejnegeri'', is in honor of Norwegian-American herpetologist Leonhard Stejneger. Habitat The preferred ...
'' *'' Takydromus sylvaticus'' – Chung-an ground lizard *''
Takydromus tachydromoides ''Takydromus tachydromoides'', the Japanese grass lizard, is a wall lizard species of the genus ''Takydromus''. It is found in Japan. Its Japanese name is 'kanahebi' (カナヘビ). 'Hebi' means 'snake' in Japanese, although this lizard is not a ...
'' – Japanese grass lizard *''
Takydromus toyamai ''Takydromus toyamai'' ( ミヤコカナヘビ), also known commonly as the Miyako grass lizard, is a species of lizard in the family Lacertidae. The species is endemic to the Ryukyu Islands. Etymology The specific name, ''toyamai'', is i ...
'' – Miyako grass lizard *''
Takydromus viridipunctatus ''Takydromus viridipunctatus'' is a species of lizard in the family Lacertidae. It is endemic to Taiwan Taiwan, officially the Republic of China (ROC), is a country in East Asia, at the junction of the East and South China Seas in the n ...
'' *'' Takydromus wolteri'' – mountain grass lizard *'' Takydromus yunkaiensis'' – Yunkai grass lizard ''
Nota bene (, or ; plural form ) is a Latin phrase meaning "note well". It is often abbreviated as NB, n.b., or with the ligature and first appeared in English writing . In Modern English, it is used, particularly in legal papers, to draw the atten ...
'': A
binomial authority In taxonomy, binomial nomenclature ("two-term naming system"), also called nomenclature ("two-name naming system") or binary nomenclature, is a formal system of naming species of living things by giving each a name composed of two parts, bot ...
in parentheses indicates that the species was originally described in a genus other than ''Takydromus''.


References


Further reading

* Daudin FM (1802). ''Histoire Naturelle, Générale et Particulière des Reptiles; Ouvrage faisant suite à l'Histoire Naturelle générale et particulière, composée par Leclerc Buffon; et rédigée par C.S. Sonnini, membre de plusieurs sociétés savantes. Tome troisième'' olume 3 Paris: F. Dufart. 452 pp. (''Takydromus'', new genus, pp. 251–252). (in
French French (french: français(e), link=no) may refer to: * Something of, from, or related to France ** French language, which originated in France, and its various dialects and accents ** French people, a nation and ethnic group identified with Franc ...
). * Lin S-M, Chen CA, Lue K-Y (2002). Molecular Phylogeny and Biogeography of the Grass Lizard Genus ''Takydromus'' (Reptilia: Lacertidae) of East Asia. ''Molecular Phylogenetics and Evolution'' 22 (2): 276–288. Erratum, 26 (2): 333. * Smith MA (1935). ''The Fauna of British India, Including Ceylon and Burma. Reptilia and Amphibia. Vol. II.—Sauria.'' London: Secretary of State for India in Council. (Taylor and Francis, printers). xiii + 440 pp. + Plate I + 2 maps. (Genus ''Takydromus'', p. 365). {{Taxonbar, from=Q1805394 Taxa named by François Marie Daudin Lizard genera