Amphiesma

Amphiesma (keelbacks)
Amphiesma stolatum
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Reptilia
Order:	Squamata
Suborder:	Serpentes
Family:	Colubridae
Subfamily:	Natricinae
Genus:	Amphiesma Duméril, Bibron & Duméril, 1854
Species
Amphiesma andreae Amphiesma beddomei Amphiesma flavifrons Amphiesma khasiense Amphiesma leucomystax Amphiesma modestum Amphiesma monticola Amphiesma nicobariense Amphiesma parallelum Amphiesma pealii Amphiesma platyceps Amphiesma sieboldii Amphiesma stolatum Amphiesma vibakari Amphiesma xenura

Amphiesma is a genus of colubrid snakes, commonly known as keelbacks because of their keeled dorsal scales. They are all nonvenomous.

Geographic range

Amphiesma species occur in southern and eastern Asia, including Siberia, Korea, China, the Indian subcontinent, Indochina, Southeast Asia, Japan, and Indonesia.

Species

A. andrae Ziegler & Le, 2006 - Andrea's keelback
A. beddomei (Günther, 1864) - Nilgiri keelback
A. flavifrons (Boulenger, 1887) - white-fronted water snake
A. khasiense (Boulenger, 1890) - Khasi Hills keelback
A. leucomystax David et al., 2007 - white-lipped keelback
A. modestum (Günther, 1875) - modest keelback
A. monticola (Jerdon, 1853) - hill keelback or Wayanad keelback
A. nicobariense (Sclater, 1891) - Nicobar Island keelback
A. parallelum (Boulenger, 1890) - Yunnan keelback
A. pealii (Sclater, 1891) - Assam keelback
A. platyceps (Blyth, 1854) - Himalayan keelback
A. sieboldii (Günther, 1860) - Sikkim keelback
A. stolatum (Linnaeus, 1758) - buff striped keelback
A. vibakari (Boie, 1826) - Asian keelback
A. xenura (Wall, 1907) - Wall's keelback

Other meanings

"Amphiesma" can also refer to a complex cell covering in some Dinoflagellates, composed of flattened vesicles called alveoli that sometimes support overlapping cellulose plates to form a type of scaly armor called a theca.

Source

• A Quick Guide to the Colubridae

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