Which mollusc is the largest invertebrate ?

Options

A. Giant clam
B. giant squid
C. giant octopus
D. giant snail

Answer

To answer the question "Which mollusc is the largest invertebrate?", we can follow these steps:

### Step 1: Identify the Options
We need to consider the different types of molluscs mentioned, which include:
- Giant clam
- Giant squid
- Giant octopus
- Giant snail

### Step 2: Evaluate Each Option
- **Giant Clam**: This is known as the largest living bivalve and can grow up to 2 to 4 meters in length. However, it is not the largest invertebrate.

- **Giant Squid**: This species can reach lengths of up to 12 meters for females and around 10 meters for males. It is classified as a cephalopod and is known for its large size, making it a strong candidate for the largest invertebrate.

- **Giant Octopus**: This mollusc can grow to about 8 meters in length, which is significant but smaller than the giant squid.

- **Giant Snail**: This mollusc can reach sizes of around 3 to 4 meters, but it is still not as large as the giant squid.

### Step 3: Conclusion
After evaluating all the options, the **Giant Squid** is identified as the largest invertebrate, reaching lengths of up to 12 meters.

### Final Answer
The largest invertebrate mollusc is the **Giant Squid**.

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