During development of ctenophores there is a ciliated spherical larve which is called

Options

A. cyticercus
B. miracidium
C. cydippid larva
D. glochidium

Answer

To answer the question about the ciliated spherical larva during the development of ctenophores, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Ctenophores**: Ctenophores, also known as comb jellies or sea walnuts, belong to the phylum Ctenophora. They are marine organisms characterized by their gelatinous bodies and ciliated surfaces.

2. **Identifying the Larval Stage**: During the development of ctenophores, the zygote develops into a free-swimming larval stage. This larval stage is crucial for the life cycle of ctenophores.

3. **Recognizing the Correct Term**: The specific term for the ciliated spherical larva of ctenophores is "Cydipid larvae." This is a well-known term in biological literature that refers to the larval form of these organisms.

4. **Eliminating Incorrect Options**:
- **Cytoserous**: This term does not relate to ctenophores; it refers to a different biological context.
- **Mirracedium**: This is the larval form of certain parasitic flatworms, not ctenophores.
- **Glotidium**: This term refers to the larval stage of some mollusks, particularly bivalves, and is not applicable to ctenophores.

5. **Final Answer**: After analyzing the options, the correct answer is "Cydipid larvae," which is the ciliated spherical larva during the development of ctenophores.

### Final Answer:
The ciliated spherical larva during the development of ctenophores is called **Cydipid larvae**.

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