biology

Hydrophis viperinus

Hydrophis viperinus 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 Hydrophis viperinus rather than just read about it. In short: Hydrophis viperinus, commonly known as the viperine sea snake, is a species of venomous sea snake in the family Elapidae (Hydrophiinae). Diagnostic characters Scales hexagonal, juxtaposed, in 27–34 rows on the neck, 37–50 at midbody; ventrals 226–274, anteriorly about half the width of the body, narrowing posterior to about twice the width of the adjacent scales, or slightly less; head shields entire, nostrils super…

Key takeaways

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

Reference excerpt

Hydrophis viperinus, commonly known as the viperine sea snake, is a species of venomous sea snake in the family Elapidae (Hydrophiinae).

Diagnostic characters Scales hexagonal, juxtaposed, in 27–34 rows on the neck, 37–50 at midbody; ventrals 226–274, anteriorly about half the width of the body, narrowing posterior to about twice the width of the adjacent scales, or slightly less; head shields entire, nostrils superior, nasal shields in contact with one another; prefrontals longer than broad, not in contact with upper labials; 1, rarely 2, pre- and 1–2 postoculars; 7-9 upper labials, 3–5 bordering eye (sometimes only 3–4 or 4–5); usually 1 anterior temporal, occasionally 2 or 3; body color, more or less bicolored, gray above, white below, the two usually clearly demarcated on the sides, often with 25–35 dark rhomboidal spots, rarely with dark bands. Total length: males 925 mm, females 820 mm; tail length: males 100 mm, females 80 mm

Distribution Northern coasts of the Indian Ocean and western Pacific: from the Persian Gulf to around India to Indonesia and southern China. IUCN lists the following countries: Bahrain, Bangladesh, Cambodia, China, India (Andaman Is., Nicobar Is.), Indonesia, Iran Iraq, Japan, Kuwait, Malaysia, Myanmar, Oman, Pakistan, Philippines, Qatar, Saudi Arabia, Singapore, Sri Lanka, Taiwan, Thailand, United Arab Emirates, and Vietnam.

References

Boulenger, G.A. (1888). "Description of two new snakes from Hong Kong, and note on the dentition of Hydrophis viperina". Ann. Mag. Nat. Hist. 6 (2): 43–44. Murray, J.A. (1887). "Three New Species of Hydrophis". J. Bombay Nat. Hist. Soc. 2: 32–35.

External links http://itgmv1.fzk.de/www/itg/uetz/herp/photos/Thalassophina_viperina.jpg http://itgmv1.fzk.de/www/itg/uetz/herp/photos/Thalassophina_viperina_juv.jpg

Worked examples

Example 1 — a first encounter with Hydrophis viperinus

Start with the simplest possible case. Write down what Hydrophis viperinus 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 Hydrophis viperinus 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 Hydrophis viperinus 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 Hydrophis viperinus

In research: Hydrophis viperinus 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 Hydrophis viperinus 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: Hydrophis viperinus is common in secondary-school and first-year university syllabi. It links to neighbouring topics Elapidae stubs, Hydrophis, IUCN Red List least concern species, so understanding it makes those chapters shorter.
In everyday life: Look for Hydrophis viperinus 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 Hydrophis viperinus in 20 minutes

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

Frequently asked questions

What is Hydrophis viperinus in simple terms?

Hydrophis viperinus, commonly known as the viperine sea snake, is a species of venomous sea snake in the family Elapidae (Hydrophiinae). Diagnostic characters Scales hexagonal, juxtaposed, in 27–34 rows on the neck, 37–50 at midbody; ventrals 226–274, anteriorly about half the width of the body, na…

Why does Hydrophis viperinus 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 Hydrophis viperinus?

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 Hydrophis viperinus.