AMPHIESMA STOLATUM PDF

There are rows of scales, which are strongly keeled except, except those on the flanks. Head is elongate oval to slightly triangular; body is slender; tail is long. Eye is medium to large; iris is dappled yellow and black, with outer part of eye black and blending into yellow around pupil; pupil is round, jet black, surrounded by narrow band of light to medium yellow. The supraocular is moderately well developed forming a ridge above and a short distance anterior to eye.

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It is a typically nonaggressive snake that feeds on frogs and toads. It belongs to the subfamily Natricinae, and is closely related to water snakes and grass snakes. It resembles an Asian version of the American garter snake. It is quite a common snake but is rarely seen. Anatomy and morphology A small, slender snake, the buff striped keelback is generally olive-brown to gray in colour. The head and the body are of the same colour.

The body of the buff striped keelback is short, and it has a long slender tail which is almost a quarter of its length. Two yellow stripes along the length and to the sides of the spine are the distinctive feature of this snake. These stripes are diffuse at the head and are especially bright on the second half of its body. The keelback has irregular blackish crossbars on the body. Near the head the crossbars are prominent, whereas on the second half of the snake they become diffuse.

The sides of the head are yellow, and the head tapers to form a distinctive neck. The nape is red during the breeding season. The chin and throats are white or sometimes orange. There are black vertical markings in front of and behind the large eyes. The eyes have large round pupils with golden flecks on the iris.

The forked tongue is black. The underside is pale cream and has small black spots scattered along both the margins. It has keeled scales on the dorsal surface of the body. Morphs There are two distinct colour varieties — a typical variety, found everywhere, with grayish-blue interscale colour.

The second variety, erythrostictus, is common mainly in coastal areas and has bright vermillion interscale colour. The interscale colours become visible only when the snake puffs itself up when agitated. Identifying characteristics The nasal shield does not touch the second supralabial upper lip shield.

The rostral touches a total of 6 shields. These are two inter-nasals, two nasals and the first supralabial on each side. Presence of single temporal shield. Nineteen rows of costals which are strongly keeled except for the outer row which is perfectly smooth. Presence of stripes.

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Buff striped keelback

It is a typically nonaggressive snake that feeds on frogs and toads. It belongs to the subfamily Natricinae, and is closely related to water snakes and grass snakes. It resembles an Asian version of the American garter snake. It is quite a common snake but is rarely seen. Anatomy and morphology A small, slender snake, the buff striped keelback is generally olive-brown to gray in colour.

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Throughout Taiwan, Matsu, and Orchid Island, up to m altitude. Description Small snake; total length up to 90 cm. There are rows of scales, which are strongly keeled except, except those on the flanks. Head is elongate oval to slightly triangular; body is slender; tail is long. Eye is medium to large; iris is dappled yellow and black, with outer part of eye black and blending into yellow around pupil; pupil is round, jet black, surrounded by narrow band of light to medium yellow. The supraocular is moderately well developed forming a ridge above and a short distance anterior to eye.

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Species was not fully specified, species name missing!

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