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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.
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 ...
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 dissection. Nomenclature. While reptile scales use a sophisticated naming system (see figures), there has been a ...
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Printable version; Page information; ... This diagram was created with Inkscape, ... Anatomy of a snake. 1 esophagus, 2 trachea, 3 tracheal lungs, 4 rudimentary left ...
The dorsal scales are arranged in 19 rows, strongly keeled, with outer rows smooth. The ventrals number 125–158, the anal is divided, and the subcaudals number 64–90. Coloration is very variable, consisting of dark spots arranged quincuncially and often separated by a whitish network, or of black longitudinal bands on a pale ground, or of ...
The dorsal scales, in addition to the strong primary keel, have secondary keels and tubercles, but no apical pits. The dorsal scales are arranged in 15 rows at midbody (in 17 rows on the neck). The ventrals number 203-241. The anal plate is undivided. The subcaudals number 45-61, and are divided (in two rows). [2]
Enlarged vertebral scales of Banded Krait Bungarus fasciatus. Vertebral scales, in snakes, are large scales along the top of the back of the snake, i.e., the uppermost row. They are a specialised form of dorsal scales. "Vertebral" is a term associated with the backbone, but also central scales such as on the carapace of a chelonian shell. [1]