Squilla is a

Options

A. Arachnid
B. Crustacean
C. Chilopod
D. Insect

Answer

**Step-by-Step Solution:**

1. **Understanding the Options**: The question asks about Squilla and provides four options: arachnid, crustacean, chilopod, and insect. We need to identify which category Squilla belongs to.

2. **Defining Insects**: Insects are characterized by having a pair of antennae on their heads and typically have three body segments (head, thorax, abdomen). Examples include ants and butterflies. Squilla does not fit this description.

3. **Defining Chilopods**: Chilopods, such as centipedes, have one pair of legs per body segment and can have many legs (more than 40). Squilla does not match this definition either.

4. **Defining Arachnids**: Arachnids are wingless, carnivorous arthropods with two body segments (cephalothorax and abdomen) and typically have eight legs. Examples include spiders and scorpions. Squilla does not belong to this group.

5. **Defining Crustaceans**: Crustaceans are characterized by having a hard exoskeleton and distinct body regions. They often have multiple pairs of legs and are primarily aquatic. Squilla is indeed a type of crustacean.

6. **Conclusion**: Based on the definitions and characteristics discussed, Squilla is classified as a crustacean.

**Final Answer**: Squilla is a crustacean.

---