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When counting dorsal scales, numbers are often given for three points along the body, for example 19:21:17. These numbers correspond to the number of dorsal scales around the body at a head's length behind the head, at midbody and at a head's length before the vent. If only one number is given, it is for the midbody count. [1] Dorsal scale are ...
The scales on the body of the snake are called the dorsal or costal scales. Sometimes there is a special row of large scales along the top of the back of the snake, i.e., the uppermost row, called the vertebral scales.
Its most defining characteristic is its iridescent, highly polished scales that give this snake its common name (sunbeam snake). The dorsal scales a layer of dark (indigo-brown) pigmentation just below the surface on each scale that enhances the iridescence. The ventral scales are greyish-white.
The shape and number of scales on the head, back and belly are characteristic to family, genus and species. Scales have a nomenclature analogous to the position on the body. In "advanced" (Caenophidian) snakes, the broad belly scales and rows of dorsal scales correspond to the vertebrae, allowing scientists to count the vertebrae without ...
Scale arrangement includes 23 dorsal scale rows at midbody (rarely 19 or 21), 211-250 ventral scales, a divided anal scale, and 60-91 paired subcaudal scales (Schultz 1996; Arnold 2002). Ventral scales are sharply angled where the underside meets the side of the body, which enhances the species' climbing ability. Lifespan is estimated at 25 to ...
The head is not distinct from the neck. The dorsal surface of the head is covered with small scales. The rostral is large. The eyes range from small to very small, and the pupils are vertical. The anterior maxillary teeth and anterior mandibular teeth are longer than the posterior ones. The body is almost cylindrical. The dorsal scales are ...
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The Narrow-banded burrowing snake has cream to white coloured ventral scales, of which there are 140-175, and 15-30 subcaudal scales of which are divided. [2] The anal scale is also divided. [ 2 ] The dorsal scales are brightly coloured with a pale reddish-brown to cream coloured background and black-tipped scales that form 50 or more narrow ...