biology

Zarudny's worm lizard

Zarudny's worm lizard is a biology topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Zarudny's worm lizard rather than just read about it. In short: Zarudny's worm lizard (Diplometopon zarudnyi) is a species of amphisbaenian reptile in the family Trogonophidae. The species is monotypic within the genus Diplometopon.

Key takeaways

Zarudny's worm lizard belongs to biology; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Zarudny's worm lizard to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Zarudny's worm lizard from memory before moving on to harder problems.

Reference excerpt

Zarudny's worm lizard (Diplometopon zarudnyi) is a species of amphisbaenian reptile in the family Trogonophidae. The species is monotypic within the genus Diplometopon. The species is native to the Middle East.

Etymology The specific name, zarudnyi, is in honor of Russian zoologist Nikolai Zarudny.

Geographic range D. zarudnyi is found in western Iran, southern Iraq, and on the Arabian Peninsula in Kuwait, Oman, Qatar, northern Saudi Arabia, and the United Arab Emirates.

Habitat The preferred natural habitats of D. zarudnyi are desert, grassland, and shrubland, at altitudes from sea level to 1,000 m (3,300 ft).

Description D. zarudnyi typically measures approximately 30 cm (12 in) in total length (including tail). Because it has no limbs, it uses body undulations similar to a snake to move itself along. It has limited vision.

Behavior D. zarudnyi is terrestrial and fossorial, burrowing in sand or loose soil.

Diet The diet of D. zarudnyi consists of insects (mainly larvae and adults of beetles of the genus Dermestes), and other small invertebrates.

Reproduction D. zarudnyi is oviparous.

Conservation status D. zarudnyi is classified as Least Concern (LC) in the IUCN Red List.

References

Further reading Haas G (1957). "Some Amphibians and Reptiles from Arabia". Proceedings of the California Academy of Sciences, Fourth Series 29 (3): 47–86. (Diplometopon zarudnyi, pp. 71–72, Figure 8). Nikolsky AM (1907). "[Reptiles and Amphibians Collected by N. A. Zarudny in Persia in 1903–1904]". Annuaire du Musée Zoologique de l'Académie Impériale des Sciences de St.-Pétersbourg 10 (3–4): 260–301. (Diplometopon, new genus, pp. 276–277; D. zarudnyi, new species, pp. 277–280, figures 1–3). (in Latin and Russian). Rudayni HA, Al-Sadoon MK, Paray BA (2017). "Morphological characteristics of worm lizard, Diplometopon zarudnyi (Squamata: Trogonophidae), in the central region of Saudi Arabia". Saudi Journal of Biological Sciences 24 (4): 966–971. Sindaco R, Jeremčenko VK (2008). Reptiles of the Western Palearctic. 1. Annotated Checklist and Distributional Atlas of the Turtles, Crocodiles, Amphisbaenians and Lizards of Europe, North Africa, Middle East and Central Asia. (Monographs of the Societas Herpetologica Italica). Latina, Italy: Edizioni Belvedere. 580 pp. ISBN 978-88-89504-14-7.

Illustrations

Worked examples

Example 1 — a first encounter with Zarudny's worm lizard

Start with the simplest possible case. Write down what Zarudny's worm lizard claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In biology, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Zarudny's worm lizard before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Zarudny's worm lizard ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Zarudny's worm lizard

In research: Zarudny's worm lizard appears in biology research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Zarudny's worm lizard in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Zarudny's worm lizard is common in secondary-school and first-year university syllabi. It links to neighbouring topics IUCN Red List least concern species, Lizard stubs, Reptiles described in 1907, so understanding it makes those chapters shorter.
In everyday life: Look for Zarudny's worm lizard outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Zarudny's worm lizard in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Zarudny's worm lizard means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Zarudny's worm lizard out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Zarudny's worm lizard in simple terms?

Zarudny's worm lizard (Diplometopon zarudnyi) is a species of amphisbaenian reptile in the family Trogonophidae. The species is monotypic within the genus Diplometopon.

Why does Zarudny's worm lizard matter?

Because it connects several biology ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Zarudny's worm lizard?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Zarudny's worm lizard.