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Citation: Midtgaard, Rune. RepFocus - A Survey of the Reptiles of the World. (www.repfocus.dk).
Latest update: May 12th, 2024.


Taxonomy of the family Colubridae
Bibliography of the genus Trimerodytes
Biodiversity of the family Colubridae








Genus
Trimerodytes

Asian Water Snakes

Asiatische Schwimmnattern

Indokinesiske Vandsnoge

1895 Trimerodytes Trimerodytes balteatus (type species: Trimerodytes balteatus Cope 1895)
1929 Paratapinophis Angel (type species: Paratapinophis premaxillaris Angel 1929; syn. Deepak, Cooper, Poyarkov, Kraus, Burin, Das, Narayanan, Streicher, Smith & Gower 2022)
1977 Sinonatrix Rossman & Eberle (type species: Tropidonotus annularis Hallowell 1856; syn. Ren, Wang, Guo, Wang, Nguyen & Li 2019)
Contents: 7 species, of which none are endemic.
Endemism: 0% 100%
Remarks: The species of this genus were previously included in Natrix, then assigned to a separate genus, Sinonatrix (Rossman & Eberle 1977), however, the latter name was subsequently shown to be a synonym of Trimerodytes. When revalidating Trimerodytes, the authors added another species, balteatus, formerly assigned to Opisthotropis. Paratapinophis was previously regarded as a synonym of Opisthotropis (e.g., Pope 1935; Cox 1991), but revalidated by Murphy, Chan-ard, Mekchai, Cota & Voris (2008), however, the validity was questioned by Ren, Wang, Guo, Wang, Nguyen & Li (2019). Most recently, Deepak, Cooper, Poyarkov, Kraus, Burin, Das, Narayanan, Streicher, Smith & Gower (2022) synonymized Paratapinophis with Trimerodytes.
Distribution: E. Asia.
Reported from: China (Anhui, Chongqing, Fujian, Gansu, Guangdong, Guangxi, Guizhou, Hainan, Hebei, Henan, Hong Kong, Hubei, Hunan, Jiangsu, Jiangxi, Shaanxi, Sichuan, Yunnan, Zhejiang), India (Arunachal Pradesh), Laos, Myanmar, Taiwan, Thailand, Vietnam.

Trimerodytes aequifasciatus

Equal-banded Water Snake, Chinese Spotted Keelback, Diamond-backed Water Snake, Blotched Water Snake, (Asian Water Snake)

Gleichgebänderte Schwimmnatter

Ensbåndet Vandsnog

1908 Natrix aequifasciata Barbour
Sinonatrix aequifasciata Rossman & Eberle 1977
Trimerodytes aequifasciatus Ren, Wang, Guo, Wang, Nguyen & Li 2019

Distribution: China (Chongqing, Fujian, Guangdong, Guangxi, Guizhou, Hainan, Hong Kong, Hunan, Jiangxi, Yunnan, Zhejiang), Laos, Vietnam.


Trimerodytes annularis

Asian Banded Water Snake, Ringed Keelback, Banded Ground Snake

Asiatische Gebänderte Schwimmnatter

Asiatisk Båndet Vandsnog

1856 Tropidonotus annularis Hallowell
Natrix annularis Stejneger 1925
Sinonatrix annularis Rossman & Eberle 1977
Trimerodytes annularis Ren, Wang, Guo, Wang, Nguyen & Li 2019
1859 Tropidonotus chinensis Jan in Berthold (Böhme 2010)
1859 Tropidonotus semifasciatus Berthold (Zhao & Adler 1993)
1903 Tropidonotus habereri Werner (Zhao & Adler 1993)

Distribution: China (Anhui, Chongqing, Fujian, Guangdong, Guangxi, Hainan, Hebei, Henan, Hubei, Hunan, Jiangsu, Jiangxi, Sichuan, Yunnan, Zhejiang), Taiwan.


Trimerodytes balteatus

Banded Mountain Stream Keelback, Hainan Stream Snake, Hainan Mountain Keelback

Gebänderte Gebirgsflussnatter

Båndet Bjergvandsnog

1895 Trimerodytes balteatus Cope
Tropidonotus balteatus Boulenger 1896
Opisthotropis balteata Pope 1935
1904 Liparophis Bedoti Peracca (Smith 1943)
1931 Opisthotropis multicincta Fan (syn. Ren, Wang, Guo, Wang, Nguyen & Li 2019)

Remarks: Reassigned to Trimerodytes by Ren, Wang, Guo, Wang, Nguyen & Li (2019). David, Pauwels, Nguyen & Vogel (2015) treated multicincta as a separate species (of the genus Opisthotropis), but most other authors have regarded it as a synonym of balteatus (e.g., Smith 1943; Zhao & Adler 1993; Ren, Wang, Guo, Wang, Nguyen & Li 2019). An isolated record from Cambodia is likely erroneous (Ren, Wang, Guo, Wang, Nguyen & Li 2019).
Distribution: China (Guangdong, Guangxi, Hainan, Hong Kong, Hunan), Vietnam.


Trimerodytes percarinatus

Chinese Keelback, Mountain Water Snake, Eastern Water Snake, (Boulenger's Water Snake, Olive Keelback)

Chinesische Schwimmnatter

Kinesisk Vandsnog

1899 Tropidonotus percarinatus Boulenger
Natrix percarinatus Parker 1923
Natrix annularis percarinata Bourret 1936
Sinonatrix percarinata Rossman & Eberle 1977
Trimerodytes percarinatus Ren, Wang, Guo, Wang, Nguyen & Li 2019
1931 Natrix suriki Maki (David, Cox, Pauwels, Chanhome & Thirakhupt 2004)
Sinonatrix percarinata suriki Zhao & Jiang 1986
Sinonatrix suriki Welch 1988

Other common names:
suriki: White-stomach Snake
Distribution: China (Anhui, Chongqing, Fujian, Gansu, Guangdong, Guangxi, Guizhou, Hainan, Henan, Hong Kong, Hubei, Hunan, Jiangsu, Jiangxi, Shaanxi, Sichuan, Yunnan, Zhejiang), India (Arunachal Pradesh, Mizoram), Laos, Myanmar, Taiwan, Thailand, Vietnam.


Trimerodytes praemaxillaris

Brown Stream Snake, (Angel’s Mountain Keelback)

Braune Flussnatter

Brun Flodsnog

1929 Paratapinophis praemaxillaris Angel
Opisthotropis praemaxillaris Pope 1935
Trimerodytes praemaxillaris Deepak, Cooper, Poyarkov, Kraus, Burin, Das, Narayanan, Streicher, Smith & Gower 2022

Remarks: Specific epithet sometimes misspelled premaxillaris (e.g., Mo, Chen & Li 1984).
Distribution: China (Yunnan), Laos, Thailand.


Trimerodytes yapingi

Yaping Keelback

Yaping-Schwimmnatter

Yaping-kølsnog

2019 Sinonatrix yapingi Guo, Zhu & Liu
Trimerodytes yapingi Wang, Ren, Chen, Lyu, Guo, Jiang, Chen, Li, Guo, Wang & Che 2020

Distribution: China (Yunnan), Laos.





Trimerodytes yunnanensis

Yunnan Keelback

Yunnan-Schwimmnatter

Yunnan-kølsnog

1998 Sinonatrix yunnanensis Dinq-Qi & Yang
Trimerodytes yunnanensis Ren, Wang, Guo, Wang, Nguyen & Li 2019

Remarks: Validity supported by Guo, Zhu, Liu, Wang, Che & Nguyen (2020).
Distribution: China (Yunnan), Myanmar, Thailand, Vietnam.