biology

Shark Bay worm-lizard

Shark Bay 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 Shark Bay worm-lizard rather than just read about it. In short: The Shark Bay worm-lizard (Aprasia haroldi), also known commonly as Harold's legless skink, is a species of lizard in the family Pygopodidae. The species is endemic to the Shark Bay region in Western Australia, Australia.

Key takeaways

Shark Bay 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 Shark Bay worm-lizard to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Shark Bay worm-lizard from memory before moving on to harder problems.

Reference excerpt

The Shark Bay worm-lizard (Aprasia haroldi), also known commonly as Harold's legless skink, is a species of lizard in the family Pygopodidae. The species is endemic to the Shark Bay region in Western Australia, Australia. It is a limbless lizard found burrowing in loose soil in arid areas.

Etymology The specific name, haroldi, is in honor of Australian herpetologist Gregory Harold.

Habitat The preferred natural habitats of A. haroldi are coastal sand dunes and sandy desert.

Description A small limbless lizard, A. haroldi has an average snout-to-vent length (SVL) of 8.6 cm (3.4 in), and an average tail length of 6.1 cm (2.4 in). It has only four upper labials. The prefrontal is in broad contact with the first upper labial and in narrow contact with the second upper labial. The second upper labial is in contact with the eye. There are 14 scale rows around the body at midbody. Both dorsally and ventrally, A. haroldi is pale brownish grey with darker markings, except for the lips and chin which are yellowish white, and the underside of the tail which is creamy white.

Reproduction A. haroldi is oviparous.

References

Further reading Cogger HG (2014). Reptiles and Amphibians of Australia, Seventh Edition. Clayton, Victoria, Australia: CSIRO Publishing. xxx + 1,033 pp. ISBN 978-0643100350. Maryan B, Adams M, Aplin KP (2015). "Taxonomic resolution of the Aprasia repens species-group (Squamata: Pygopodidae) from the Geraldton Sandplains: a description of a new species and additional mainland records of A. clairae ". Records of the Western Australian Museum 30 (1): 12–32. Storr GM (1978). "Taxonomic Notes on the Reptiles of the Shark Bay Region, Western Australia". Records of the Western Australian Museum 6 (3): 303–318. (Aprasia haroldi, new species, pp. 307–308). Wilson S, Swan G (2013). A Complete Guide to Reptiles of Australia, Fourth Edition. Sydney: New Holland Publishers. 522 pp. ISBN 978-1921517280.

Illustrations

Worked examples

Example 1 — a first encounter with Shark Bay worm-lizard

Start with the simplest possible case. Write down what Shark Bay 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 Shark Bay 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 Shark Bay 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 Shark Bay worm-lizard

In research: Shark Bay 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 Shark Bay 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: Shark Bay worm-lizard is common in secondary-school and first-year university syllabi. It links to neighbouring topics Aprasia, Endemic fauna of Australia, IUCN Red List least concern species, so understanding it makes those chapters shorter.
In everyday life: Look for Shark Bay 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 Shark Bay worm-lizard in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Shark Bay 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 Shark Bay worm-lizard out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Shark Bay worm-lizard in simple terms?

Why does Shark Bay 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 Shark Bay 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 Shark Bay worm-lizard.