The Collaborative International Dictionary of English v.0.48:
Mysticeti \Mysticeti\ prop. n. A suborder including baleen whales: right whales; rorquals; blue whales; and humpbacks. Syn: suborder Mysticeti. [WordNet 1.5]WordNet (r) 3.0 (2006):
Mysticeti n 1: baleen whales: right whales; rorquals; blue whales; humpbacks [syn: Mysticeti, suborder Mysticeti]