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In a nautical sense, a bar is a shoal, similar to a reef: a shallow formation of (usually) sand that is a navigation or grounding hazard, with a depth of water of 6 fathoms (11 meters) or less. It therefore applies to a silt accumulation that shallows the entrance to or course of a river, or creek.
Sea snakes, or coral reef snakes, are elapid snakes that inhabit marine environments for most or all of their lives. They belong to two subfamilies, Hydrophiinae and Laticaudinae . Hydrophiinae also includes Australasian terrestrial snakes, whereas Laticaudinae only includes the sea kraits ( Laticauda ), of which three species are found ...
Aipysurus duboisii, also known commonly as Dubois' sea snake and the reef shallows sea snake, is a species of extremely venomous snake in the subfamily Hydrophiinae of the family Elapidae. Its geographic range includes Papua New Guinea , New Caledonia and the northern, eastern and western coastal areas of Australia , that is the Coral Sea ...
• Sea snake (bottom right) Marine reptiles are reptiles which have become secondarily adapted for an aquatic or semiaquatic life in a marine environment. Only about 100 of the 12,000 extant reptile species and subspecies are classed as marine reptiles, including marine iguanas, sea snakes, sea turtles and saltwater crocodiles. [1]
Aipysurus apraefrontalis, commonly known as the short-nosed sea snake or Sahul reef snake, is a species of venomous sea snake in the family Elapidae, which occurs on reefs off the northern coast of Western Australia. English herpetologist Malcolm Arthur Smith described the species in 1926 from a specimen collected on the Ashmore Reef.
It is a common, widespread species that lives on coral reefs, including the Great Barrier Reef. [1] It can also be found in the north-eastern Pacific Ocean. [11] The snake hides in small coves or protective coral areas if not hunting or surfacing to breathe. [12]
Aipysurus fuscus, commonly known as the dusky sea snake or Timor Reef snake, is a species of sea snake in the family Elapidae. [2] It is found in the Timor Sea between Australia , Indonesia and East Timor and has been classified as endangered .
Coral snakes are a large group of elapid snakes that can be divided into two distinct groups, the Old World coral snakes and New World coral snakes. There are 27 species of Old World coral snakes, in three genera (Calliophis, Hemibungarus, and Sinomicrurus), and 83 recognized species of New World coral snakes, in two genera (Micruroides and Micrurus).