Cetacea and Subungulates

Question 1

Order (Whales)

Answer 1

Cetacea

Question 2

Suborder (Baleen Whales)

Answer 2

Mysticeti, baleen present instead of teeth, no echolocation.

Question 3

Family (Bowhead, right whales)

Answer 3

Balaenidae, no throat grooves, no dorsal fin, highly arched rostrum.

Question 4

Family (Rorquals)

Answer 4

balaenopteridae, throat grooves and dorsal fins present, rostrum not highly arched.

Question 5

Suborder (Toothed whales)

Answer 5

Odontoceti, teeth present, echolocate, fatty melon present.

Question 6

Family (Dolphins)

Answer 6

Delphinidae, most with pointed beak, teeth with sharp crowns.

Question 7

Family (Porpoises)

Answer 7

Phoncoenidae, no distinct beak, teeth flattened.

Question 8

Family (Narwhal, beluga)

Answer 8

Monodontidae, dentition consists of one pair or upper incisors.

Question 9

Family (sperm whales, relatives)

Answer 9

Physteridae, very large, blunt head, dive incredibly deep (3200 meters).

Question 10

Family (River dolphins)

Answer 10

Platanistidae, all freshwater or esturaian species, small cetaceans with long beaks, small eyes.

Question 11

Order (Elephants)

Answer 11

Proboscidae, enlarged incisors, prehensile snout, graviportal limbs.

Question 12

Order (Hyraxes)

Answer 12

Hyracoidea, molariform teeth not replaced horizontally, specified toe pads for climbing.

Question 13

Order (Dugong and manatees)

Answer 13

Sirenia, only mammalian marine herbivores, large, with fusiform bodies, vestigial pelvis