Borders of the oceans seas it contains) as follows: Note that these definitions exclude any marginal waterbodies that are separately defined by the IHO (such as the Kara Sea and East Siberian Sea), though these are usually considered to be part of the Arctic Ocean. The CIA defines the limits of the Arctic Ocean differently, as depicted in the map comparing its definition to the IHO's definition. The Atlantic Ocean separates the Americas from Europe and Africa. It may be further subdivided by the equator into northern and southern portions. The 3rd edition, currently in force, of the International Hydrographic Organization's (IHO) "Limits of
A Naturalist in Indian Seas "a most fascinating and complete popular account of the deep-sea fauna of the Indian seas. The book is one of intense interest throughout to a zoologist". In its original edition, "A Naturalist in Indian Seas" was 328 pages long and published in 8 volumes in London. A Naturalist in Indian Seas A Naturalist in Indian Seas, or, Four Years with the Royal Indian Marine Survey Ship Investigator is a 1902 publication by Alfred William Alcock, a British naturalist and carcinologist. The book is mostly a narrative describing the "Investigator"<nowiki>'</nowiki>s journey through areas of the Indian Ocean, such as the Laccadive