biology

Ovachlamys fulgens

Ovachlamys fulgens 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 Ovachlamys fulgens rather than just read about it. In short: Ovachlamys fulgens is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Helicarionidae. Ovachlamys fulgens was originally discovered and described as Macrochlamys fulgens by the British malacologist Gerard Pierre Laurent Kalshoven Gude in 1900.

Key takeaways

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

Reference excerpt

Ovachlamys fulgens is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Helicarionidae. Ovachlamys fulgens was originally discovered and described as Macrochlamys fulgens by the British malacologist Gerard Pierre Laurent Kalshoven Gude in 1900.

Distribution The type locality for this species is Ryukyu Islands (Loo-Choo Islands). The type specimens are stored in the Florida Museum of Natural History. The snail is thought to be originally from the Ryukyu Islands. Ovachlamys fulgens has spread to various countries, most probably accidentally introduced with the orchid trade. Non-indigenous distribution of Ovachlamys fulgens include: Americas:

Costa Rica The most frequent non-indigenous distribution has this species in Costa Rica. USA: Miami-Dade County, Florida - it has been reported since 2003, but its wide distribution in the areas sampled strongly indicates that it has been established in southern Florida for some time. Broward County, Florida - it has been reported since 2003. Trinidad and Tobago Colombia Brazil - since 2015 Pacific:

Hawaii Several Southeast Asian countries:

Thailand Singapore This species is already established in the US, and is considered to represent a potentially serious threat as a pest, an invasive species which could negatively affect agriculture, natural ecosystems, human health or commerce. Therefore, it has been suggested that this species be given top national quarantine significance in the USA.

Description

The shell of this species is perforate, trochoid, thin, shining, pellucid and dark corneous,with a depressed spire. The apex is obtuse. Sutures are linear and margined. The shell has four whorls, that are increasing rather suddenly. The last whorl is convex and a little inflated and it is twice as wide as the penultimate whorl. Whorls are finely striated, decussated by microscopic spiral lines. The last whorl is not descending and it is slightly excavated in the umbilical region. The aperture is slightly oblique and lunate. The peristome is thin, straight, and acute. The margins of the aperture are distant and sub-parallel, and the columellar margin is a little reflected and nearly covering the very narrow umbilical perforation. The width of the shell is 6–7 mm and the height of the shell is 4,5 mm. These snails are sometimes called "jumping snails" because the tail is modified with a caudal horn and the posterior part of the foot acts as a catapult to push off from contiguous substrates, allowing the snail to suddenly move several inches.

Ecology The habitats of Ovachlamys fulgens include pastures and crop fields with moisture and with deep leaf litter cover. For example, habitats with Yucca guatemalensis provide good conditions for this species. The snails are mostly found in soil litter and on plants up to 8 feet in height in areas of secondary growth and tree plantations. The ideal collection time is after rainfall. This species is considered an important orchid pest. It is phytophagous and is reported to attack a wide variety of horticultural plants, but the snails are mostly found among soil litter and become dormant during dry periods. It has been found on avocado, mango, Heliconia and Dracaena. Leaves of the avocado can be also used to raise juveniles in lab settings. Little scientific data has been gathered on the biology of this species. Individuals of Ovachlamys fulgens can lay eggs at the age of 42 days and are considered mature when their shell width reaches 5.12 mm. There is no need for the snails to mate in order to lay eggs and for successful reproduction. Eggs are laid in clutches of three in soil or leaf litter where they absorb more water from the environment. The lifespan of Ovachlamys fulgens is 9 months in lab settings.

Parasites Parasites of Ovachlamys fulgens include Angiostrongylus cantonensis.

References This article incorporates public domain text from the reference and a public domain work of the United States Government from references.

Further reading (in Spanish) Barrientos Z. (1996). "Distribución y ciclo de vida del caracol terrestre Ovachlamys fulgens (Gude, 1900) (Stylommatophora: Helicarionidae)". MSc Thesis, Universidad de Costa Rica, San José, Costa Rica.

External links

Ovachlamys fulgens on the UF / IFAS Featured Creatures Web site

Illustrations

Ovachlamys fulgens: The drawings in the type description were created by the illustrator John Nugent Fitch and show apical, apertural and umbilical views of the shell of Ovachlamys fulgens. — The drawings in the type description were created by the illustrator John Nugent Fitch and show apical, apertural and umbilical views of the shell of Ovachlamys fulgens.

Worked examples

Example 1 — a first encounter with Ovachlamys fulgens

Start with the simplest possible case. Write down what Ovachlamys fulgens 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 Ovachlamys fulgens 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 Ovachlamys fulgens 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 Ovachlamys fulgens

In research: Ovachlamys fulgens 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 Ovachlamys fulgens 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: Ovachlamys fulgens is common in secondary-school and first-year university syllabi. It links to neighbouring topics Gastropods described in 1900, Helicarionidae, NatureServe secure species, so understanding it makes those chapters shorter.
In everyday life: Look for Ovachlamys fulgens 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 Ovachlamys fulgens in 20 minutes

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

Frequently asked questions

What is Ovachlamys fulgens in simple terms?

Why does Ovachlamys fulgens 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 Ovachlamys fulgens?

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 Ovachlamys fulgens.