biology

Spinitectoides

Spinitectoides 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 Spinitectoides rather than just read about it. In short: Spinitectoides is a genus of parasitic nematodes, belonging to the family Cystidicolidae. Species of Spinitectoides are parasitic as adults in the gastrointestinal tract of fish.

Key takeaways

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

Reference excerpt

Spinitectoides is a genus of parasitic nematodes, belonging to the family Cystidicolidae. Species of Spinitectoides are parasitic as adults in the gastrointestinal tract of fish. According to the World Register of Marine Species, the genus currently (2019) includes a single species, Spinitectoides berlandi.

Description The genus Spinitectoides is known only from larvae and females; its main characteristics are "a festooned cuticular ornament on the anterior part of body and an apical structure closely similar to this of Cystidicola". Spinitectoides berlandi was described on the basis of one larva from Trisopterus luscus and three adult females from Molva molva. No males were found. The description also mentions that females from Molva molva had been previously described by Berland under the name "Spinitectus sp.".

Etymology The etymology is not clearly explained in the original description but it is obvious that the name of the genus refers to Spinitectus, another genus of Cystidicolidae. The specific epithet berlandi obviously refers to Bjørn Berland, a Norwegian parasitologist who described similar specimens in 1961.

Hosts and localities

Spinitectoides berlandi is a parasite of marine fish, including pouting, Trisopterus luscus (Gadidae) and common ling, Molva molva (Lotidae). The type-locality is the Atlantic Ocean off the French coast. Other localities include off the Norwegian coast and off Faroe Islands.

References

Worked examples

Example 1 — a first encounter with Spinitectoides

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

In research: Spinitectoides 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 Spinitectoides 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: Spinitectoides is common in secondary-school and first-year university syllabi. It links to neighbouring topics Cystidicolidae, Monotypic nematode genera, Parasites of fish, so understanding it makes those chapters shorter.
In everyday life: Look for Spinitectoides 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 Spinitectoides in 20 minutes

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

Frequently asked questions

What is Spinitectoides in simple terms?

Spinitectoides is a genus of parasitic nematodes, belonging to the family Cystidicolidae. Species of Spinitectoides are parasitic as adults in the gastrointestinal tract of fish.

Why does Spinitectoides 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 Spinitectoides?

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 Spinitectoides.