一切經音義 61.22

61.22

海狶（下音希俗字也說文正體從豕作豨方言云南楚之人謂猪為豨又云豕走聲也言海豨者海中魚其形似猪故名海豬亦江豚之類也）。

Porpoise (海狶): The second character has the pronunciation of 希; it is a popular variant. The standard form in the Shuowen jiezi is written with the swine radical (豕) as 豨. The Fangyan states that the people of southern Chu call pigs 豨; it also states that it is the sound of pigs running. As for the porpoise (海豨), it is a marine fish whose shape resembles a pig, hence the name 'sea pig'; it is also of the same class as the river dolphin.