Xenochrophis sanctijohannis (BOULENGER, 1890)
Can you confirm these amateur observations of Xenochrophis sanctijohannis?
|Higher Taxa||Colubridae (Natricinae), Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes)|
|Common Names||E: St. John's Keelback|
|Synonym||Tropidonotus sancti-johannis BOULENGER 1890: 350|
Tropidonotus sancti-johannis — BOULENGER 1893: 230
Nerodia piscator sancti-johannis — BOURRET 1935
Natrix piscator sancti-johannis — BOURRET 1936
Xenochrophis piscator sanctijohannis — KRAMER 1977
Xenochrophis sanctijohannis — DAS 1996: 60
Xenochrophis sanctijohannis — WALLACH et al. 2014: 799
|Distribution||Pakistan, India (Himachal Pradesh, Kashmir), Nepal (above 1000 m elevation), N Myanmar, Bhutan|
Type locality: Kashmir 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 19126.96.36.199|
|Comment||Synonymy: has been considered as synonym of subspecies of X. piscator.|
Although typical X. sanctijohannis differ from typical X. piscator, there are several intermediate morphs. It differs from X. piscator especially by a patternless body and a slightly higher number of ventral scales. However, the dark patternless body may be an adaptation to the ecological conditions of high mountains rather a taxonomical difference [VOGEL & DAVID 2006].
|Etymology||Named after Colonel Sir Oliver Beauchamp Coventry St. John (1837- 1891) who worked for the Bengal Army ofthe Honourable East India Company (1856) and who provided the types to Boulenger. Note his latinized name, “sanctijohannis”.|
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