A mollusc previously used as currency is

Options

A. Turbinella
B. Dentalium
C. Pila
D. Cypraea

Answer

To solve the question "A mollusc previously used as currency is", we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Question**: The question is asking for a specific type of mollusc that was historically used as currency.

2. **Identify the Options**: The options provided are Tubernula, Dentallium, Pila, and Cypria.

3. **Recall Characteristics of Molluscs**: Molluscs are soft-bodied animals, often with shells. They can be found in marine and freshwater environments.

4. **Research Historical Use**: Some molluscs have been historically used as currency. It's important to identify which of the given options fits this description.

5. **Analyze Each Option**:
- **Tubernula**: Not commonly known for currency use.
- **Dentallium**: Known as "tooth shells," used in some cultures as currency.
- **Pila**: Generally not recognized for currency use.
- **Cypria**: Specifically known for being used as currency in ancient Africa.

6. **Select the Correct Answer**: Based on historical context, the correct answer is **Cypria**, as it was used as currency in ancient times.

### Final Answer:
The mollusc previously used as currency is **Cypria**.

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