The correct classification of myxine is

Options

A. Chordata - Craniata - Agnatha - Cylostomata
B. Chordata - Acraniata - Protochordata - Cephalochordata
C. Chordata -Cephalochordata - Cyclostomata
D. Chordata - Craniata - Vertebrata - Ostracodermi

Answer

To classify Myxine correctly, follow these steps:

### Step-by-Step Solution:

1. **Identify the Phylum**: Myxine belongs to the phylum Chordata. This is because it possesses a notochord at some stage of its development.

2. **Determine the Subphylum**: Within the phylum Chordata, Myxine is classified under the subphylum Craniata (or Vertebrata), which includes animals with a skull.

3. **Classify Based on Jaw Presence**: Chordates are further divided based on the presence or absence of jaws. Myxine does not have jaws, so it falls under the category of Agnatha (jawless vertebrates).

4. **Identify the Class**: Within the Agnatha, Myxine is classified in the class Cyclostomata. This class includes living jawless fish, such as lampreys and hagfish (which includes Myxine).

5. **Final Classification**: Therefore, the correct classification of Myxine is:
- Phylum: Chordata
- Subphylum: Craniata
- Group: Agnatha
- Class: Cyclostomata

### Conclusion:
The correct classification of Myxine is Chordata > Craniata > Agnatha > Cyclostomata.