biology

Opisthoteuthis philipii

Opisthoteuthis philipii 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 Opisthoteuthis philipii rather than just read about it. In short: Opisthoteuthis philipii is an octopus of the Indian Ocean. It lives off the coast of Kerala, India.

Key takeaways

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

Reference excerpt

Opisthoteuthis philipii is an octopus of the Indian Ocean. It lives off the coast of Kerala, India. Known specimens were found between 275–365 m (902–1,198 ft) deep in the Arabian Sea near Alappuzha.

Description Oommen described the species based on three animals. Not much is known about the species beyond these specimens. Oommen found that the arms were different lengths, and that his specimens, like many other cirrate ("Dumbo") octopuses, had thick webs connecting their arms. The cirri are retractable. Cirri are the small, thread-like structures that give cirrate octopuses their name. They line the octopuses' arms. Opisthoteuthis philipii is distinguishable from other Opisthoteuthis species by its uniquely shaped beak. The mantle, which contains most of the vital organs, measures up to 140 mm (5.5 in). At maximum, the animal is 470 mm (19 in) long.

References

Further reading Oommen, V.P. (1976). "A New Species of the Genus Opisthoteuthis Verrill, 1883 (Cephalopoda: Mollusca) from the Southwest Coast of India". Journal of the Marine Biological Association of India. 18 (2): 368–374.

Worked examples

Example 1 — a first encounter with Opisthoteuthis philipii

Start with the simplest possible case. Write down what Opisthoteuthis philipii 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 Opisthoteuthis philipii 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 Opisthoteuthis philipii 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 Opisthoteuthis philipii

In research: Opisthoteuthis philipii 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 Opisthoteuthis philipii 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: Opisthoteuthis philipii is common in secondary-school and first-year university syllabi. It links to neighbouring topics Cephalopods described in 1976, Cephalopods of Asia, IUCN Red List data deficient species, so understanding it makes those chapters shorter.
In everyday life: Look for Opisthoteuthis philipii 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 Opisthoteuthis philipii in 20 minutes

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

Frequently asked questions

What is Opisthoteuthis philipii in simple terms?

Opisthoteuthis philipii is an octopus of the Indian Ocean. It lives off the coast of Kerala, India.

Why does Opisthoteuthis philipii 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 Opisthoteuthis philipii?

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 Opisthoteuthis philipii.