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At the North East Astronomy Forum 2010, they revealed the Ethos SX, a 3.7mm focal length eyepiece with an even greater 110° apparent field-of-view. [3] In 2011, a new line of eyepieces was introduced called the Delos. These eyepieces are based on the Ethos but have a smaller field of view of 72°. Instead, they boast a comfortable 20mm eye relief.
Paralithodes californiensis, also known as the spiny king crab and the California king crab, is a species of king crab [1] [2] [3] It is closely related to P. rathbuni with the same common names being used for the two and some authorities suggest that they might be conspecific. [4]
Pharaohs of the Sea (vol 9) Mammals in the Sea (vol 10) Provinces of the Sea (vol 11) Man Re-Enters Sea (vol 12) A Sea of Legends (vol 13) Adventure of Life (vol 14) Outer and Inner Space (vol 15) The Whitecaps (vol 16) Riches of the Sea (vol 17) Challenges of the Sea (vol 18) The Sea in Danger (vol 19) Guide to the Sea and Index (vol 20 ...
The phylogeny of king crabs as hermit crabs who underwent secondary calcification and left their shell has been suspected since the late 1800s. [4] They are believed to have originated during the Early Miocene in shallow North Pacific waters, where most king crab genera – including all Hapalogastrinae – are distributed and where they exhibit a high amount of morphological diversity.
Blue king crabs have a more northerly distribution compared to red king crabs, which is due to the colder waters of the northern Bering Sea being suitable for blue king crabs to survive. [ 4 ] [ 5 ] Their limited distribution is hypothesized to have been caused by a retreat into deeper, colder waters during a period of post-glacial warming.
Lithodes santolla, also known as the southern king crab, Chilean king crab or centolla, is a species of king crab, found off southern South America including the offshore Falkland Islands. [3] On the Pacific side, it is found in Chile from Talcahuano to Cape Horn. [3] [4] On the Atlantic side, it is found off Argentina and Uruguay. [3]
Lithodes is a genus of king crabs. Today there are about 30 recognized species, but others formerly included in this genus have been moved to Neolithodes and Paralomis . [ 1 ] They are found in oceans around the world, ranging from shallow to deep waters, but mostly at depths of 100–1,000 m (300–3,300 ft).
The red king crab (Paralithodes camtschaticus), also called Kamchatka crab or Alaskan king crab, is a species of king crab native to cold waters in the North Pacific Ocean and adjacent seas, but also introduced to the Barents Sea. It grows to a leg span of 1.8 m (5.9 ft), and is heavily targeted by fisheries.