biology

Hemiscyllium

Hemiscyllium 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 Hemiscyllium rather than just read about it. In short: Hemiscyllium is a genus of carpet shark in the family Hemiscylliidae (bamboo sharks). Overview Hemiscyllium sharks of the family Hemiscylliidae are also known as walking sharks and Epaulette sharks.

Key takeaways

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

Reference excerpt

Hemiscyllium is a genus of carpet shark in the family Hemiscylliidae (bamboo sharks).

Overview Hemiscyllium sharks of the family Hemiscylliidae are also known as walking sharks and Epaulette sharks. These small, nocturnal, benthic dwelling swimmers have evolved to be able to 'walk', or use their fins to propel themselves over rocks, into pools, or into small crevices in their habitats. Research from the School of Biomedical Sciences at the University of Queensland in Australia has determined that this genus most recently split from the genus Chiloscyllium around 44 million years ago. This genus is confined to tropical waters off Australia, Papua New Guinea, and Indonesia, but an individual from this genus, possibly representing an undescribed species, has been photographed in the Seychelles. They have short snouts with nostrils placed almost at the tip, well-elevated eyes, and supraorbital ridges. The mouth is closer to the tip of the snout than the eyes and lacks the connecting dermal fold across the chin. The pectoral and pelvic fins are thick and heavily muscular. Either a black hood on the head or a large black spot on the sides of the body is present, though juveniles often are strongly marked with dark spots/bars. This shark family can survive around two hours out of water without any internal damage, can tolerate high levels of CO2, and are hypoxia and anoxia tolerant.

Adaptations Epaulette sharks live in shallow waters near reefs, tidepools or islands and are currently only found in the Western South Pacific. Epaulette sharks use their fins to crawl inside small crevices or holes while hunting for small prey and escaping larger predators. Each species in this genus also possesses a distinct black 'eye' spot behind its pectoral fins to deter predators by giving the appearance of a very large eye. Neonate and juvenile epaulette sharks are born with lighter color markings and slightly different patterns, but their colors darken as they mature, with patterns shifting to mimic its environment.

List of species Ten recognized species are in this genus:

Hemiscyllium dudgeonae (Blakeway, 2026) (Dudgeon’s walking shark) Hemiscyllium freycineti (Quoy & Gaimard, 1824) (Indonesian speckled carpetshark) Hemiscyllium galei G. R. Allen & Erdmann, 2008 (Cenderwasih epaulette shark) Hemiscyllium hallstromi Whitley, 1967 (Papuan epaulette shark) Hemiscyllium halmahera G. R. Allen, Erdmann & Dudgeon, 2013 (Halmahera epaulette shark) Hemiscyllium henryi G. R. Allen & Erdmann, 2008 (Henry's epaulette shark) Hemiscyllium michaeli G. R. Allen & Dudgeon, 2010 (Milne Bay epaulette shark) Hemiscyllium ocellatum (Bonnaterre, 1788) (epaulette shark) Hemiscyllium strahani Whitley, 1967 (hooded carpetshark) Hemiscyllium trispeculare J. Richardson, 1843 (speckled carpetshark)

References

Illustrations

Worked examples

Example 1 — a first encounter with Hemiscyllium

Start with the simplest possible case. Write down what Hemiscyllium 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 Hemiscyllium 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 Hemiscyllium 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 Hemiscyllium

In research: Hemiscyllium 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 Hemiscyllium 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: Hemiscyllium is common in secondary-school and first-year university syllabi. It links to neighbouring topics Hemiscyllium, Shark genera, Taxa named by Friedrich Gustav Jakob Henle, so understanding it makes those chapters shorter.
In everyday life: Look for Hemiscyllium 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.

Ask Teacher Smith questions about this articleOpens your AI tutor with a question about “Hemiscyllium” →

Affiliate

Preply — study more efficiently by working with a personal tutor. 50% off.

How to study Hemiscyllium in 20 minutes

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

Frequently asked questions

What is Hemiscyllium in simple terms?

Hemiscyllium is a genus of carpet shark in the family Hemiscylliidae (bamboo sharks). Overview Hemiscyllium sharks of the family Hemiscylliidae are also known as walking sharks and Epaulette sharks.

Why does Hemiscyllium 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 Hemiscyllium?

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 Hemiscyllium.