Aristotle's lantern is associated with
(a) Respiration in Ophiura
(b) Excretion in Cucumaria
(c) Feeding in Echinus
(d) Locomotion in Antedon

Options

A. Respiration in Ophiura
B. Excretion in Cucumaria
C. Feeding in Echinus
D. Locomotion in Antedon

Answer

To solve the question regarding Aristotle's lantern, we will analyze each option step by step.

1. **Understanding Aristotle's Lantern**:
- Aristotle's lantern is a specialized structure found in certain echinoderms, particularly sea urchins (Echinus). It consists of a complex arrangement of calcareous (calcium carbonate) jaws and a fleshy tongue-like structure known as radula. This structure is primarily involved in the feeding process of these organisms.

2. **Evaluating Each Option**:
- **Option (a) Respiration in Ophiura**: Ophiura, commonly known as brittle stars, do not utilize Aristotle's lantern for respiration. This option is incorrect.
- **Option (b) Excretion in Cucumaria**: Cucumaria refers to sea cucumbers, which have different mechanisms for excretion. Aristotle's lantern is not associated with excretion. This option is also incorrect.
- **Option (c) Feeding in Echinus**: Echinus is a genus of sea urchins, and they possess Aristotle's lantern, which is specifically used for feeding. This option is correct.
- **Option (d) Locomotion in Antedon**: Antedon refers to feather stars, which do not use Aristotle's lantern for locomotion. This option is incorrect.

3. **Conclusion**: After evaluating all the options, the correct answer is **(c) Feeding in Echinus**.