Matching Pairs dolphins parts of bodyOnline version 11th grade dolphins by lyubanya9288 1 blowhole 2 melon 3 ear 4 dorsal fin 5 rostrum 6 fluke 7 peduncle 8 pectoral fins a term used in anatomy for several kinds of hard, beak-like structures projecting out from the head or mouth of an animal one of the two parts that a dolphin's tail is divided into a fin located on the back of most marine and freshwater vertebrates within various taxa of the animal kingdom the powerhouse of the body, located between the dorsal fin and tail flukes the hole through which a dolphin breathes a structure located in the forehead of dolphins that is thought to play a key role in their echolocation abilities the two fins located on the sides of a fish (or marine mammal) the organ that enables hearing and (in mammals) body balance using the vestibular system