Odontoceti

Thesaurus

Noun

Odontoceti - toothed whales: dolphins; porpoises; sperm whales; beaked whalessuborder Odontocetianimal order - the order of animalsCetacea, order Cetacea - an order of Eutheriatoothed whale - any of several whales having simple conical teeth and feeding on fish etc.family Physeteridae, Physeteridae - sperm whalesfamily Hyperodontidae, family Ziphiidae, Hyperodontidae, Ziphiidae - beaked whales; in some especially former classifications included in the family PhyseteridaeDelphinidae, family Delphinidae - dolphinsfamily Platanistidae, Platanistidae - river dolphins

Odontoceti

[ō‚dänt·ə′sē‚tī] (vertebrate zoology) The toothed whales, a suborder of cetacean mammals distinguished by a single blowhole.

Odontoceti

(toothed whales), a suborder of aquatic mammals of the order Cetacea. The body of a toothed whale is 1.2–20 m long. In distinction to Mysticeti, it has from two to 240 teeth. There is one nasal opening at the top of the head. The lower jaws are shorter than the skull and are joined in front. Toothed whales orient themselves mainly by means of echolocation. The formation of the echolocation apparatus, with its system of air sacs, has caused skull asymmetry in toothed whales. They have highly developed hearing, and a sound signal and voice organ linked with the nasal passage. Toothed whales live in all seas and oceans. The suborder Odontoceti comprises four families: Physeteridae (two species: sperm whale and pygmy sperm whale), Platanistidae (four species), Ziphiidae (17 species), and Delphinidae (50 species). The waters of the USSR contain 23 species (belonging to 20 genera). Toothed whales reach sexual maturity between two and six years of age. Their food consists offish, cephalopod mollusks, and crustaceans. The most important for man are the sperm whale, bottle-nosed dolphin, common dolphin, harbor porpoise, white whale (beluga), killer whale, and blackfish. They are sought for industrial oil, spermaceti, and meat. The number of many species has sharply decreased, and some Odontoceti species have been placed under protection.

REFERENCES

Tomilin, A. G. Kitoobramye. Moscow, 1957. (Zveri SSSR i prilezhashchikh stran, vol. 9.)
Tomilin, A. G. Kitoobraznye fanny morel SSSR. Moscow, 1962.
Zhizn’ ihivotnykh, vol. 6. Moscow, 1971.

A. G. TOMLIN

Odontoceti

Related to Odontoceti: Odontocetes, Toothed whales

noun

Synonyms for Odontoceti

noun toothed whales: dolphins

Synonyms

suborder Odontoceti

Related Words

animal order
Cetacea
order Cetacea
toothed whale
family Physeteridae
Physeteridae
family Hyperodontidae
family Ziphiidae
Hyperodontidae
Ziphiidae
Delphinidae
family Delphinidae
family Platanistidae
Platanistidae