V. zugorum: Physical Characteristics of this Rare Lizard

V. zugorum: Physical Characteristics and Morphology

Identifying the unique traits of a species is fundamental to herpetology. Based on the analysis of the holotype—the single physical specimen used to formally describe the species—we can gain a detailed understanding of the appearance and dimensions of V. zugorum during its juvenile stage.

Physical Dimensions

The juvenile holotype of V. zugorum provides a baseline for the species' early growth stages. It measures 150 mm (5.9 in) in snout-vent length (the distance from the tip of the nose to the cloaca) and reaches a total length of 360 mm (14.2 in).

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Coloration and Patterns

The visual appearance of V. zugorum is characterized by a muted, metallic palette. The primary background color is a silver-greyish hue. While the body and limbs are largely patternless, they are accented by scattered bluish scales that provide a subtle contrast to the grey base.

The tail follows a similar patternless trend for most of its length, though it features a dozen faint dark bands located toward the tip. In contrast, the underside of the lizard is a solid yellowish color without any markings.

Internal Features

One of the more distinct anatomical details is the coloration of the tongue, which is dark purplish with a pink base.

Key Facts

  • Holotype size: 150 mm snout-vent length; 360 mm total length.
  • Primary color: Silver-greyish.
  • Distinctive markings: Scattered bluish scales on the body and limbs.
  • Tail features: Approximately twelve faint dark bands near the tip.
  • Ventral color: Unpatterned yellowish underside.
  • Tongue color: Dark purplish with a pink base.

Summary of V. zugorum Characteristics

Morphological Profile of Juvenile V. zugorum
Feature Description
Snout-Vent Length 150 mm (5.9 in)
Total Length 360 mm (14.2 in)
Body Color Silver-greyish with bluish scales
Underside Color Yellowish
Tail Pattern 12 faint dark bands at the tip
Tongue Color Dark purplish / pink base

Frequently Asked Questions

What is the total length of a juvenile V. zugorum?

The juvenile holotype measures 360 mm (14.2 in) in total length.

What color is the underside of V. zugorum?

The underside of the lizard is yellowish and lacks any patterns.

Does V. zugorum have patterns on its body?

The body and limbs are generally patternless, though they do feature scattered bluish scales.

What are the characteristics of the tail?

The tail is mostly patternless, except for about a dozen faint dark bands located toward the tip.

What does the tongue of V. zugorum look like?

The tongue is dark purplish in color with a pink base.

References

  1. Shea, G.; Arida, E.; Koch, A. (2021). "Varanus zugorum". IUCN Red List of Threatened Species. 2021 e.T83779141A83779173. Retrieved 19 November 2021.
  2. Böhme W; Ziegler T (2005). "A new monitor lizard from Halmahera, Moluccas, Indonesia (Reptilia: Squamata: Varanidae)". Salamandra. 41 (1/2): 51–59. Archived from the original on 2021-08-04. Retrieved 2021-02-17. (Varanus zugorum, new species).
  3. "Silver Monitor (Varanus zugorum)". Varanus indicus species-complex. Archived from the original on 5 March 2021. Retrieved 17 February 2021.
  4. "The Search for Lost Species". Global Wildlife Conservation. Retrieved 2017-06-02.
  5. Varanus zugorum at the Reptarium.cz Reptile Database. Accessed 17 February 2021.