biology

Pila scutata

Pila scutata 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 Pila scutata rather than just read about it. In short: Pila scutata is a species of gastropod belonging to the family Ampullariidae, the apple snails. Description The height of the shell attains 39 mm, its diameter 35 mm.

Key takeaways

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

Reference excerpt

Pila scutata is a species of gastropod belonging to the family Ampullariidae, the apple snails.

Description The height of the shell attains 39 mm, its diameter 35 mm. (Original description in Latin) The shell is elongated-globose and narrowly perforated. It is transversely irregularly striated, brownish-green, and obsoletely banded. The spire is emergent, with its apex eroded, and the suture is scarcely deep. The shell comprises 4.5 convex whorls. The body whorl is irregularly inflated and obscurely angular in the middle. The aperture is ovate, and its right margin is somewhat dilated. Internally, it appears yellowish and is banded with brownish-violet. The margin is acute and somewhat produced at the base. The operculum is thick and calcareous. Externally, it is covered with a green, striated epidermis, while internally, it is pearly, with an elongated spot surrounded by a minutely vermiculate margin.

Distribution The species is found in Southeastern Asia and Central America. However, it has been taken from its native habitat to be used as a food delicacy, control of weeds in freshwater, a component in home aquariums, and as a vector for parasitic larva in the freshwater. This has made it very difficult to determine Pila scutata's true native range.

References

External links Wood, W. (1828). Supplement to the Index Testaceologicus; or A catalogue of shells, British and foreign. London: Richard Taylor. p. 29. Philippi, R.A. (1851–1852). Die Gattung Ampullaria. In Abbildungen nach der Natur mit Beschreibungen. In: Schuberth, G. H.; Wagner, J. A., Eds. Systematisches Conchylien-Cabinet von Martini und Chemnitz. Neu herausgegeben und vervollständigt. Ersten Bandes zwanzigste Abtheilung. 1-74, pls A, 1-21. Nürnberg: Bauer & Raspe. p. 31. Reeve, L.A. (1856). Monograph of the genus Ampullaria. In: Conchologia Iconica, or illustrations of the shells of molluscous animals, vol. 10, pls 1-28 and unpaginated text. London: L. Reeve & Co. Philippi, R.A. (1849). "Centuria tertia testaceorum novorum". Zeitschrift für Malakozoologie. 5 (10): 192. Morgan, J. de (1886). "Mollusques terrestres & fluviatiles du Royaume de Pérak et des pays voisins (Presqu'ile Malaise)". Bulletin de la Société Zoologique de France. 10 (4–6): 418. Kobelt, W. (1911–1915). Die Gattung Ampullaria. Neue Folge. In Abbildungen nach der Natur mit Beschreibungen. In: Schuberth, G. H.; Wagner, J. A. Systematisches Conchylien-Cabinet von Martini und Chemnitz. Ersten Bandes, zwanzigste Abtheilung, zweiter Theil. Nürnberg: Bauer & Raspe. p. 90. Nevill, G. (1877). Catalogue of Mollusca in the Indian Museum, Calcutta. Calcutta: Printed by order of the trustees. p. 9. Low, M. E. Y., Tan, S. K. & Ng, T. H. (2013). "Pila conica (Wood, 1828), or Pila scutata (Mousson, 1848)? The correct name for the native apple snail of Singapore (Gastropoda Ampullariidae)" (PDF). Nature in Singapore. 6.{{cite journal}}: CS1 maint: multiple names: authors list (link) Brandt, R.A.M. (1974). "The non-marine aquatic Mollusca of Thailand" (PDF). Archiv für Molluskenkunde. 105 (i–iv): 52. Ng, T. H., Tan, S. K.; Low, M. E. Y. (2014). "Singapore Mollusca: 7. The family Ampullariidae (Gastropoda: Caenogastropoda: Ampullaroidea)" (PDF). Nature in Singapore. 7.{{cite journal}}: CS1 maint: multiple names: authors list (link)

Illustrations

Worked examples

Example 1 — a first encounter with Pila scutata

Start with the simplest possible case. Write down what Pila scutata 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 Pila scutata 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 Pila scutata 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 Pila scutata

In research: Pila scutata 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 Pila scutata 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: Pila scutata is common in secondary-school and first-year university syllabi. It links to neighbouring topics Gastropods described in 1848, IUCN Red List least concern species, NatureServe secure species, so understanding it makes those chapters shorter.
In everyday life: Look for Pila scutata 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 Pila scutata in 20 minutes

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

Frequently asked questions

What is Pila scutata in simple terms?

Pila scutata is a species of gastropod belonging to the family Ampullariidae, the apple snails. Description The height of the shell attains 39 mm, its diameter 35 mm.

Why does Pila scutata 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 Pila scutata?

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 Pila scutata.