Time for the bog dogs! Molosser is a category of solidly built, large dog breeds that all descend from the same common ancestor. There are 15 different Molossian type breeds in this quiz. Mastiff or Mountain breeds-but all related. Your task is simple-Identify them! Molossian type dogs are classified into two categories by the FCI, the Mastiff type and the Mountain type. This quiz puts them both together. Can you identify these 15 Molossian Mastiff/Mountain-type dog breeds?