Atlantic salmon from the Latin "salmo", meaning salmon, and "salar", meaning leaper, according to M. Barton, but more likely meaning "resident of salt water" . Lewis and Short's Latin Dictionary (Clarendon Press, Oxford, 1879) translates "salar" as a kind of trout from its use in the "Idylls" of the poet Ausonius (4th century CE). Later, the differently coloured smolts were found to be the same species. Other names used to reference Atlantic salmon are: bay salmon, black salmon, caplin-scull salmon, Sebago salmon, silver salmon, fiddler, or outside salmon. At different points in their maturation and life cycle, they are known as parr,
The Salmon of Doubt six is a better kind of number." The book as published is divided into two main sections: "Life, the Universe and Everything", which utilizes fiction, essays and interviews with Adams, and "The Salmon of Doubt", which presents the most complete version of the novel as Adams left it. The first section is then subdivided into three: "Life" touches upon Adams' own life, "The Universe" covers Adams' views of reality and "Everything", which is more wide open and includes the original version of the Hitchhiker's short story "Young Zaphod Plays It Safe". The UK edition includes an introduction by Stephen Fry,