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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 ...
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 ...
Pages in category "Snake scales" The following 33 pages are in this category, out of 33 total. ... Dorsal scales; F. Frontal scale; I. Intercanthal scales; Internasal ...
The body is stout, the cross-section of which is rounded to circular. The dorsal scales are strongly keeled; only the lowest row is smooth. Mid-body, the dorsal scales number 27–33. The ventral scales number 153–180. The anal plate is not divided.
The blotched snake has 25 dorsal scales (rarely 23 or 27). The lateral scales are smooth. The ventral scales number 187–224 in males and 205–234 in females. They have 56-90 subcaudals. In most cases the anal plate is divided. Each scale has a dark brown spot on a yellowish-white or pinkish-white background. The dark brown pigment predominates.
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]