biology

Magnapinna talismani

Magnapinna talismani 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 Magnapinna talismani rather than just read about it. In short: Magnapinna talismani is a species of bigfin squid known only from a single damaged specimen. It is characterised by small white nodules present on the ventral surface of its fins.

Key takeaways

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

Reference excerpt

Magnapinna talismani is a species of bigfin squid known only from a single damaged specimen. It is characterised by small white nodules present on the ventral surface of its fins. It is the first described species of Magnapinna, although it was not recognized as a member of the genus until over a century later.

Description The holotype of M. talismani is a specimen of 61-millimetre (2.4 in) mantle length (ML) collected in the northern Atlantic Ocean, south of the Azores, at 34°46′N 36°11′W. It was caught by an open bottom trawl at a depth of up to 3,175 m (10,420 ft). The capture location of this specimen is very near to that of the as-yet undescribed Magnapinna sp. B.

Taxonomy M. talismani was originally placed in the genus Chiroteuthopsis, which is now considered a junior synonym of Mastigoteuthis. Mastigoteuthis talismani was subsequently placed in the genus Magnapinna by Michael Vecchione and Richard E. Young in 2006.

Gallery

References

Bibliography Fischer, H. & Joubin, L. (1906). "Note sur les Céphalopodes capturés au cours des expéditions du Travailleur et du Talisman". Bulletin du Muséum National d'Histoire Naturelle. 12: 202-205, available online at http://biodiversitylibrary.org/page/5021383. Fischer, H. & Joubin, L. (1907). "Expéditions scientifiques du Travailleur et du Talisman". Céphalopodes 8: 313-353. Vecchione, M. & Young, R. E. (2006). "The squid family Magnapinnidae (Mollusca: Cephalopoda) in the AtlanticOcean, with a description of a new species", n. sp.. Proc. Biol. Soc. Wash. 119(3): 365-372.

External links

Tree of Life web project: Magnapinna talismani Magnapinna talismani: Original description

Illustrations

Worked examples

Example 1 — a first encounter with Magnapinna talismani

Start with the simplest possible case. Write down what Magnapinna talismani 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 Magnapinna talismani 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 Magnapinna talismani 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 Magnapinna talismani

In research: Magnapinna talismani 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 Magnapinna talismani 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: Magnapinna talismani is common in secondary-school and first-year university syllabi. It links to neighbouring topics Bigfin squid, Cephalopods described in 1907, Species known from a single specimen, so understanding it makes those chapters shorter.
In everyday life: Look for Magnapinna talismani 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 Magnapinna talismani in 20 minutes

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

Frequently asked questions

What is Magnapinna talismani in simple terms?

Magnapinna talismani is a species of bigfin squid known only from a single damaged specimen. It is characterised by small white nodules present on the ventral surface of its fins.

Why does Magnapinna talismani 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 Magnapinna talismani?

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 Magnapinna talismani.