Animals that live both in sea and on land, are called amphibians. And there are 3 types of amphibians; frog families, ceacillian and salamander. These animals are prohibited to be eaten according to the Shafi’i school.

This is based on a hadith narrated by Abu Daud and Ahmad:

"أن النبي صلى الله عليه وسلم نهى عن قتل الضفدع"

Which means: "Indeed the Prophet SAW prohibits killing the frog".

The Prophet's prohibition against his people from killing frogs indicates that it is not permissible for us to eat the animal.

Imam Nawawi has said: "the dead fish that are floating are considered halal i.e fish that died by itself. So it is permissible according to our opinion (Mazhab Shafi'i) for all kinds of sea animals except frogs..."