what is the lifespan of the latter mentioned?
Over 200 years.
Cetacea
Some species, such as the bowhead whale ("Balaena mysticetus"), can reach over 200 years. Based on the annual rings of the bony otic capsule, the age of the oldest known specimen is a male determined to be 211 years at the time of death.
what is baleen whale? A parvorder of the infraorder Cetacea.
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Cetacea [SEP] Lifespan
Among cetaceans, whales are distinguished by an unusual longevity compared to other higher mammals. Some species, such as the bowhead whale ("Balaena mysticetus"), can reach over 200 years. Based on the annual rings of the bony otic capsule, the age of the oldest known specimen is a male determined to be 211 years at the time of death.