Which of the following is a sanguivore and characterised by the presence of botryoidal tissue?

Options

A. Tubifex
B. Aphrodite
C. Megascolex
D. Hirudinaria

Answer

To solve the question, "Which of the following is a sanguivore and characterized by the presence of botryoidal tissue?", we will follow these steps:

### Step 1: Understand the Terms
- **Sanguivore**: This term refers to organisms that feed on blood. Common examples include certain types of leeches.
- **Botryoidal tissue**: This is a specialized tissue that resembles a cluster of grapes and is known to store blood. It is typically found in certain sanguivorous organisms.

### Step 2: Identify the Options
We need to evaluate the given options to identify which organism is a sanguivore and has botryoidal tissue.

### Step 3: Analyze Each Option
1. **Tubifex**: This is a type of worm that is not a sanguivore; it feeds on organic matter in sediments.
2. **Aphrodite**: This is an aquatic organism that is not known to feed on blood; it is independent and feeds on detritus.
3. **Megascorlex**: This organism is an endoparasitic worm that does not feed on blood but rather absorbs nutrients from its host.
4. **Herudinaria**: This is a genus of leeches that are known to be sanguivores. They feed on blood and are characterized by the presence of botryoidal tissue.

### Step 4: Conclusion
Based on the analysis, the correct answer is **Herudinaria**, as it is a sanguivore and contains botryoidal tissue.

### Final Answer
**Herudinaria** is the correct option.

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