异尾拟蓑鲉，又称截尾蓑鲉、拟蓑鲉，俗名石狗公，为辐鳍鱼纲鲉形目鲉科的其中一种。

本鱼分布于印度太平洋区，包括东非、**、日本、菲律宾、印尼、澳洲、密克罗尼西亚、马绍尔群岛、所罗门群岛等海域。

Parapterois heterura, the blackfoot firefish, is a species of scorpionfish widely distributed on the southeastern coast of Africa as well as off Japan and in Indonesia where it is usually found in sheltered coastal bays with a soft bottom, such as fine sand or mud. It is found in depths ranging from 40 to 300 metres (130 to 980 ft). This species is a sedentary fish and may even bury itself within the substrate. P. heterura flashes its brightly colored pectoral fins to startle predators and escape, but it may also use these fins to corner prey. This behavior has been demonstrated in other lionfish. This species can be found in the aquarium trade.