suborder Prosimii
— Noun
– English
~ not used in all classifications; in some classifications considered coextensive with the Lemuroidea; in others includes both Lemuroidea and Tarsioidea
suborder Brachyura
— Noun
– English
~ an order of crustaceans (including true crabs) having a reduced abdomen folded against the ventral surface
suborder Hystricomorpha
— Noun
– English
~ an order of rodents including: porcupines; guinea pigs; chinchillas; etc.
suborder Osteostraci
— Noun
– English
~ extinct group of armored fish-like vertebrates; taxonomy is not clear