Which of the following is a freshwater edible fish ?

Options

A. harpodon
B. cirrhinus mrigala
C. anguilla
D. hilsa

Answer

To determine which of the following is a freshwater edible fish, we will analyze each option provided.

### Step-by-Step Solution:

1. **Identify the Options**: We need to look at the names of the fish species provided in the question. The options are:
- Harpedon species (Bombay duck)
- Serenism regula
- Angula
- Hilsa

2. **Analyze Each Option**:
- **Option 1: Harpedon species (Bombay duck)**: This fish is known to be a marine species. Although it is edible, it does not qualify as a freshwater fish. Therefore, this option is incorrect.
- **Option 2: Serenism regula**: This species is recognized as a freshwater fish and is also edible. Hence, this option is correct.
- **Option 3: Angula**: This refers to eel, which is also a marine species. Even though it is edible, it does not fit the criteria of being a freshwater fish. Thus, this option is incorrect.
- **Option 4: Hilsa**: Hilsa is another marine fish species. It is well-known for being edible, but it is not a freshwater fish. Therefore, this option is also incorrect.

3. **Conclusion**: After analyzing all the options, we find that the only freshwater edible fish among the options is **Serenism regula**.

### Final Answer:
The freshwater edible fish is **Serenism regula**.

---