Question

identify the species of fish?
(image of a fish with labeled parts: dorsal fins, gill slits, pectoral fin, pelvic fin, anal fin, ventral)
dichotomous key
question 1: does the specimen have a jawless, circular - shaped mouth?
yes: lamprey
no go to question 2.
what is the fish’s species?
dropdown options: cow shark, flounder, goblin shark, halibut, lamprey, manta ray, sawfish, skate, thresher shark, whale shark

Explanation:

The fish in the diagram has a jaw (not jawless, circular - shaped), so we move to further identification. The goblin shark has a distinctive long, flattened snout and the general body structure (fins, gill slits) matches the diagram. Other options like lamprey are jawless (eliminated as we answered no to the first question), flounder/halibut have different body shapes, and other sharks like cow shark don't match the snout shape here.

Answer:

goblin shark