Which is a poisonous arthropod ?

Options

A. Spider
B. Scolopendra
C. Palaeomon
D. Anopheles.

Answer

To determine which of the given options is a poisonous arthropod, we will analyze each option one by one.

### Step 1: Identify the Options
The options provided are:
1. Spider
2. Scolopendra
3. Paleomon
4. Anopheles

### Step 2: Analyze Each Option
- **Spider**: While many spiders possess venom, their fangs are often too short or fragile to penetrate human skin effectively. Therefore, they are not typically considered dangerous to humans.

- **Scolopendra**: This is a genus of centipedes known for their aggressive behavior and painful sting. The venom from scolopendra can cause significant pain and discomfort, making them a poisonous arthropod.

- **Paleomon**: This refers to a genus of shrimp, which are generally non-venomous and do not pose a threat to humans.

- **Anopheles**: This is a genus of mosquitoes known for transmitting malaria. While they are vectors for disease, they do not possess venom in the way that poisonous arthropods do.

### Step 3: Conclusion
After analyzing all the options, it is clear that **Scolopendra** is the only poisonous arthropod among the choices given.

### Final Answer
The poisonous arthropod is **Scolopendra**.

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