Vertebral scales

Vertebral Scales

A banded krait, showing vertebral scales along its back.

Vertebral scales are a type of scale found on the dorsal side of certain reptiles, particularly in snakes. These scales are located along the vertebral column and are often distinct in size, shape, or texture compared to the surrounding scales.

Description

Vertebral scales are typically larger and more pronounced than the lateral scales on a snake's body. They run along the midline of the back, directly over the vertebrae, hence their name. These scales can be keeled, meaning they have a raised ridge, or smooth, depending on the species. The presence and characteristics of vertebral scales can be important for herpetologists in identifying and classifying different species of snakes.

Function

The primary function of vertebral scales is to provide protection and support to the snake's body. They help shield the underlying vertebrae and spinal cord from injury. Additionally, the texture and arrangement of these scales can aid in locomotion by providing grip and reducing friction as the snake moves through its environment.

Variation Among Species

The appearance and structure of vertebral scales can vary significantly among different species of snakes. For example, in the banded krait (Bungarus fasciatus), the vertebral scales are distinct and can be easily observed due to their size and the contrasting color patterns. In other species, such as the king cobra (Ophiophagus hannah), the vertebral scales may be less pronounced but still play a crucial role in the snake's anatomy.

Related Pages

• Scale (zoology)
• Snake
• Herpetology

References

• Shine, R. (1991). Australian Snakes: A Natural History. Cornell University Press.
• Greene, H. W. (1997). Snakes: The Evolution of Mystery in Nature. University of California Press.

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