Which of the following is not an example of sponges ?

Options

A. Sycon
B. Spongilla
C. Eupongia
D. Gorgonia

Answer

To determine which of the following is not an example of sponges, we will analyze each option provided in the question.

1. **Cycon (Scypha)**:
- Cycon is a type of sponge that belongs to the class Calcarea. It is indeed an example of a sponge.

2. **Spongilla**:
- Spongilla is known as the freshwater sponge and belongs to the class Demospongiae. This is also an example of a sponge.

3. **Euspongia**:
- Euspongia, commonly referred to as the Turkish bath sponge, is another example of a sponge and belongs to the class Demospongiae.

4. **Gorgonia**:
- Gorgonia, also known as the sea fan, is not a sponge. It belongs to the phylum Cnidaria, specifically the class Anthozoa, which includes corals and sea anemones. Therefore, Gorgonia is not an example of a sponge.

**Final Answer**: Gorgonia is not an example of sponges.