biology

Paraplotosus

Paraplotosus 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 Paraplotosus rather than just read about it. In short: Paraplotosus is a genus of catfishes native to Australasia and South-east Asia. Species There are currently three recognized species in this genus: Paraplotosus albilabris (Valenciennes, 1840) (Whitelipped eel-catfish) Paraplotosus butleri Allen, 1998 Paraplotosus muelleri (Klunzinger, 1880) (Kimberley catfish) P. albilabris originates from the Indo-Australian Archipelago, New Guinea, and Australia.

Key takeaways

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

Reference excerpt

Paraplotosus is a genus of catfishes native to Australasia and South-east Asia.

Species There are currently three recognized species in this genus:

Paraplotosus albilabris (Valenciennes, 1840) (Whitelipped eel-catfish) Paraplotosus butleri Allen, 1998 Paraplotosus muelleri (Klunzinger, 1880) (Kimberley catfish) P. albilabris originates from the Indo-Australian Archipelago, New Guinea, and Australia. This species grows to a length of about 134 centimetres (52.8 in) TL. It differs from P. butleri in having a shorter dorsal fin and shorter nasal barbels, a rounded pectoral fin shape, fewer upper procurrent caudal fin rays, and fewer gill rakers; it differs from P. muelleri in having a shorter dorsal fin and smaller eye. Its colour is highly variable, ranging from pale grey or yellowish brown to dark brown, nearly blackish, sometimes with pronounced dark mottling. It is generally whitish on the belly and ventral part of head. The fins are brown to blackish, frequently darker than the body. P. albilabris inhabits clear and turbid coral reefs in tropical areas, usually in areas with mixed sand, weed, and coral areas. This fish may be seen resting on sand bottoms under ledges or around coral. The adults live alone or in small groups. The anterior fin spines have potent venom. P. butleri is known from coastal reefs in Northern Australia and the Western Pacific (New Guinea, Island Southeast Asia, Taiwan, and the Ryukyu Islands). This species grows to about 32.5 cm (12.8 in) SL. It differs from P. albilabris and P. muelleri in having a tall, sail-like first dorsal fin and extremely long nasal barbels, which extend posteriorly to the basal third of the pectoral fin or beyond. Small juveniles have a unique coloration consisting of a black head and body with a broad white to yellow margin on the first dorsal fin; also, the dorsal, anal, and caudal fins are connected and continuous. The adults are entirely black. P. butleri is restricted to coastal reefs; secretive, it is found in reef holes or under large rocks. P. muelleri inhabits turbid coastal reefs in the Dampier Archipelago to the eastern Gulf of Carpentaria of northern Australia. This species grows to about 26.8 cm (10.6 in) SL. It differs from P. albilabris in having a taller dorsal fin and larger eye; it differs from P. butleri in having a shorter dorsal fin and shorter nasal barbels, a rounded pectoral fin shape, fewer procurrent caudal fin rays, and fewer gill rakers. It is brown in color, with the belly area and ventral surface of the head whitish. P. muelleri is restricted to turbid coastal reefs of mainland Australia and nearby islands.

References

Illustrations

Worked examples

Example 1 — a first encounter with Paraplotosus

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

In research: Paraplotosus 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 Paraplotosus 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: Paraplotosus is common in secondary-school and first-year university syllabi. It links to neighbouring topics Catfish genera, Fish of New Guinea, Marine fish genera, so understanding it makes those chapters shorter.
In everyday life: Look for Paraplotosus 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.

Ask Teacher Smith questions about this articleOpens your AI tutor with a question about “Paraplotosus” →

Affiliate

Preply — study more efficiently by working with a personal tutor. 50% off.

How to study Paraplotosus in 20 minutes

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

Frequently asked questions

What is Paraplotosus in simple terms?

Paraplotosus is a genus of catfishes native to Australasia and South-east Asia. Species There are currently three recognized species in this genus: Paraplotosus albilabris (Valenciennes, 1840) (Whitelipped eel-catfish) Paraplotosus butleri Allen, 1998 Paraplotosus muelleri (Klunzinger, 1880) (Kimbe…

Why does Paraplotosus 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 Paraplotosus?

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 Paraplotosus.