also: やまあらしあもく
noun
Hystricomorpha (suborder of rodents)
Taxonomic term for the rodent suborder that includes porcupines, guinea pigs, chinchillas, and related species. Used in zoological and biological contexts.
ヤマアラシ亜目には、ヤマアラシやモルモットが含まれる。
The suborder Hystricomorpha includes porcupines and guinea pigs.
Compound of ヤマアラシ (porcupine) + 亜目 (suborder). The term is a direct calque of the scientific name Hystricomorpha, where Hystrix is the porcupine genus.