Answer : 2. "A marine species"
Explanation :

The Zoological Survey of India has named a new marine species of ruby red-spotted head-shield sea slug after Indian President Draupadi Murmu. This species, belonging to the Melanochlamys genus, was discovered from Digha on the West Bengal coast and Udaipur on the Odisha coast. The new species of head-shield sea slug, which is found nowhere else in the world, has been named 'Melanochlamys droupadi'.