Which larva is found in members of both Annelids and Mollusca?

Explanation

**Step-by-Step Solution:**

1. **Identify the Question:** The question asks for a specific type of larva that is found in both Annelids and Mollusca.

2. **Recall Relevant Information:** Annelids and Mollusca are two distinct phyla in the animal kingdom. It is important to know their common larval forms.

3. **Determine the Common Larval Form:** The common larval form found in both Annelids and Mollusca is the "trochophore larva."

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