Myrrophis chinensis (GRAY, 1842)
|Higher Taxa||Homalopsidae, Serpentes (snakes)|
|Common Names||E: Chinese Water Snake|
G: Chinesische Wassertrugnatter
|Synonym||Hypsirhina Chinensis GRAY 1842: 66|
Hypsirhina sinensis STANLEY 1915
Enhydris chinensis SMITH 1923
Enhydris chinensis — SMITH 1943: 387
Enhydris chinensis – HEATWOLE 1999
Enhydris chinensis — ZIEGLER 2002: 236
Myrrophis chinensis — KUMAR et al. 2012
|Distribution||S China (Hong Kong, Taiwan, Hainan), N Vietnam|
Type locality: China Map legend:
- Region according to the TDWG standard, not a precise distribution map.
NOTE: TDWG regions are generated automatically from the text in the distribution field and not in every cases it works well. We are working on it.
|Types||Holotype: BMNH 1918.104.22.168|
|Comment||Habitat: fresh water; highly aquatic species but it may leave the water occasionally.|
Similar species: Enhydris bennettii.
Diet: primarily fish.
Type species. Myrrophis chinensis Gray is the type species of the genus Myrrophis KUMAR et al. 2012.
Diagnosis (genus). The combination of 21–23 dorsal scale rows at mid body and the internasal not in contact with the loreal, distinguish this genus from all other homalopsids with smooth scales and nasals in contact. All members of the Enhydris clade (chanardi, enhydris, jagorii, innominata, longicauda, subtaeniata) have 21 (rarely 23) dorsal scale rows at mid body, and internasals contacting the loreal. The only other homalopsid with smooth scales in 21 rows with the nasal in contact is E. matannensis from Sulawesi; it has upper labials 4+5 contacting the orbit, a divided internasal, and is in the plumbea clade.
Diagnosis. Dorsal scale rows in 23 rows reduced to 19 or 21 in front of vent; nasal scales small, diameter same or less than diameter of prefrontal; second pair of chin shields large and distinct; upper postocular smaller than lower postocular. Its congener M. bennettii has 21 scale rows at midbody and large nasal scales [KUMAR et al. 2012].
|Etymology||Named after its distribution in the Chinese sea.|
The genus name is derived from the Greek myrr, meaning marsh, and ophis, meaning snake.