''Trimerodytes'' 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
snake
Snakes are elongated, Limbless vertebrate, limbless, carnivore, carnivorous reptiles of the suborder Serpentes . Like all other Squamata, squamates, snakes are ectothermic, amniote vertebrates covered in overlapping Scale (zoology), scales. Ma ...
s in the
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 ...
Natricinae
The Natricinae are a subfamily of colubroid snakes, sometimes referred to as a family (Natricidae). The subfamily comprises 37 genera. Members include many very common snake species, such as the European grass snakes, and the North American wa ...
of the
family
Family (from la, familia) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its ...
Colubridae
Colubridae (, commonly known as colubrids , from la, coluber, 'snake') is a family of snakes. With 249 genera, it is the largest snake family. The earliest species of the family date back to the Oligocene epoch. Colubrid snakes are found on ever ...
. The genus is
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
East Asia
East Asia is the eastern region of Asia, which is defined in both geographical and ethno-cultural terms. The modern states of East Asia include China, Japan, Mongolia, North Korea, South Korea, and Taiwan. China, North Korea, South Korea and ...
and
Southeast Asia
Southeast Asia, also spelled South East Asia and South-East Asia, and also known as Southeastern Asia, South-eastern Asia or SEA, is the geographical United Nations geoscheme for Asia#South-eastern Asia, south-eastern region of Asia, consistin ...
.
Species
The genus ''Trimerodytes'' contains 7
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 ...
which are recognized as being valid.
*''
Trimerodytes aequifasciatus
''Trimerodytes aequifasciatus'', the Asiatic annulate keelback or Asiatic water snake, is a species of snake in the family Colubridae. It is found in Laos, southern China, Hong Kong. and Vietnam
Vietnam or Viet Nam ( vi, Việt Nam, ), o ...
'' – Asiatic annulate keelback, Asiatic water snake
*''
Trimerodytes annularis
The red-bellied annulate keelback or ringed water snake (''Trimerodytes annularis'') is a species of snake in the family Colubridae. It is found in Taiwan and eastern China
China, officially the People's Republic of China (PRC), is a cou ...
'' – red-bellied annulate keelback, ringed water snake
*''
Trimerodytes balteatus
The Hainan mountain keelback (''Trimerodytes balteatus'') is a species of snake in the family Colubridae. It is found in Vietnam and China
China, officially the People's Republic of China (PRC), is a country in East Asia. It is the world ...
'' – Hainan mountain keelback
*''
Trimerodytes percarinatus
''Trimerodytes percarinatus'', commonly known as the eastern water snake, olive keelback, olive annulate keelback or Chinese keelback water snake, is a species of snake in the subfamily Natricinae.
Taxonomy
The type locality for ''T. percarinat ...
'' – eastern water snake, olive keelback, olive annulate keelback, Chinese keelback water snake
*''
Trimerodytes praemaxillaris
''Trimerodytes praemaxillaris'' is a species of snake in the subfamily Natricinae of the family Colubridae. It is also known commonly as Angel's mountain keelback, Angel's stream snake, and the brown stream snake. The species is endemic to South ...
'' – Angel's mountain keelback, brown stream snake
*''
Trimerodytes yapingi
The Jingdong water snake (''Trimerodytes yapingi'') is a species of snake in the family Colubridae. It is found in China
China, officially the People's Republic of China (PRC), is a country in East Asia. It is the world's List of countri ...
'' – Jingdong water snake
*''
Trimerodytes yunnanensis
''Trimerodytes yunnanensis'' is a species of snake in the family Colubridae. It is found in Thailand, the province Yunnan in China, and Burma
Myanmar, ; UK pronunciations: US pronunciations incl. . Note: Wikipedia's IPA conventions requi ...
'' – Yunnan water snake, Yunnan annulate keelback
''
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 ''Trimerodytes''.
References
Further reading
*
Rossman, Douglas A.;
Eberle, W. Gary (1977). "Partition of the Genus ''Natrix'', with Preliminary Observations on Evolutionary Trends in Natricine Snakes". ''Herpetologica'' 33 (1): 34–43. (''Sinonatrix'', new genus).
Snakes of Asia
Taxa named by Edward Drinker Cope
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