Step 1: Understanding the Question:
The Barasingha is a famous deer species in India, also known as the Swamp Deer. The question asks for its scientific nomenclature.
Step 2: Detailed Explanation:
• Barasingha (Cervus duvauceli): The name "Barasingha" means "twelve-tined," referring to the large number of points on its antlers. It is endemic to India and Nepal and is the state animal of Madhya Pradesh. It is a flagship species of Kanha National Park.
• Other Options:
- Cervus unicolor (B): This is the Sambar deer, the largest deer in India.
- Tetracerus quadricornis (C): This is the Four-horned Antelope or Chousingha.
- Antilope cervicapra (D): This is the Blackbuck, known for its spiraled horns.
• Conservation Status: The Barasingha is currently listed as "Vulnerable" on the IUCN Red List due to habitat loss and conversion of swamps into agricultural land.
Step 3: Final Answer:
The scientific name of the Barasingha is Cervus duvauceli (now often placed in the genus Rucervus).