biology

Pteroidichthys amboinensis

Pteroidichthys amboinensis 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 Pteroidichthys amboinensis rather than just read about it. In short: Pteroidichthys amboinensis, the Ambon scorpionfish or Godfrey's scorpionfish, is a species of marine ray-finned fish belonging to the family Scorpaenidae, the scorpionfishes. It is found in the Indian and Pacific oceans.

Key takeaways

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

Reference excerpt

Pteroidichthys amboinensis, the Ambon scorpionfish or Godfrey's scorpionfish, is a species of marine ray-finned fish belonging to the family Scorpaenidae, the scorpionfishes. It is found in the Indian and Pacific oceans.

Taxonomy Pteroidichthys amboinensis was first formally described in 1856 by the Dutch herpetologist, ichthyologist and physician Pieter Bleeker with the type localities give as Ambon Island in the Moluccas and Manodo on Sulawesi. When Bleeker described this species he classified it in a new genus, Pteroidichthys, as the only species in the new genus making it the type species of that genus by monotypy. In 1954 the Australian ichthyologist Gilbert Percy Whitley described a new species as Rhinopias godfreyi from Exmouth Gulf in Western Australia but this taxon is now considered to be a junior synonym of P. amboinensis, however, this species is still called Godfrey's scorpionfish in Australia. The specific name refers to the type locality of Ambon Island.

Description Pteroidichthys amboinensis has the elongate, compressed body typical of the genus Pteroidichthys. This species has 12 flexible spines and 9 soft rays in its dorsal fin and 2 spines and 6 soft rays in its anal fin. It has a relatively short snout which is on average around 14% of its standard length. The rear margin of the maxilla extends past a vertical line through the centre of the pupil. There are supraorbital tentacles and the posterior lacrimal spines are well developed, being longer than the diameter of the orbit. There are many tentacles on the body and the fins. The lateral lacrimal and suborbital spines are indistinct, normally being very small spines and frequently being blunt, bony protuberances. There is no clear black blotch on the soft rayed part of the dorsal fin. These fish sometimes have a mottled blackish and reddish colour, but they can make wide changes to their colour and pattern. | This species attains a maximum known total length of 12 cm (4.7 in).

Distribution and habitat Pteroidichthys amboinensis is found in the Red Sea, through the Indian Oceamnand into the western Pacific Ocean as far east as Fiji, north to southern Japan and south to Australia. This is a demersal fish which is found at depths between 7 and 43 m (23 and 141 ft), over soft substrates and among algae.

Biology Pteroidichthys amboinensis is a solitary ambush predator which is camouflaged to blend in to its habitat,feeding on crustaceans and small fish. This fish has venom bearing spines and the venom is highly toxic and, in some circumstances, invenomation can be fatal to humans.

Utilisation Pteroidichthys amboinensis is a popular species in the aquarium trade but it is rare and as a result commands high prices.

References

External links Media related to Pteroidichthys amboinensis at Wikimedia Commons Photos of Pteroidichthys amboinensis in the Sealife Collection

Illustrations

Worked examples

Example 1 — a first encounter with Pteroidichthys amboinensis

Start with the simplest possible case. Write down what Pteroidichthys amboinensis 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 Pteroidichthys amboinensis 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 Pteroidichthys amboinensis 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 Pteroidichthys amboinensis

In research: Pteroidichthys amboinensis 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 Pteroidichthys amboinensis 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: Pteroidichthys amboinensis is common in secondary-school and first-year university syllabi. It links to neighbouring topics Fish described in 1856, IUCN Red List least concern species, Pteroidichthys, so understanding it makes those chapters shorter.
In everyday life: Look for Pteroidichthys amboinensis 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 Pteroidichthys amboinensis in 20 minutes

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

Frequently asked questions

What is Pteroidichthys amboinensis in simple terms?

Why does Pteroidichthys amboinensis 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 Pteroidichthys amboinensis?

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 Pteroidichthys amboinensis.