By Claus Frimodt, Ian Dore
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Additional info for An Illustrated Guide to Shrimp of the World
O. names discussed above describe some shrimp as shrimp and others as prawns, such distinctions between shrimp and prawns do not apply in commerce. Different people use the names to mean and to apply to quite different species. In the United Kingdom, prawns tend to be larger than shrimp. Originally, Crangon crangon, the common shrimp, was called "shrimp" and Palaemon serratus, the common prawn, was called "prawn:' However, both names are applied to many other species. "Dublin Bay prawn" is even used to describe Nephrops norvegicus, which is a langoustine or Norway lobster.
The telson is the sharp pointed piece on the last segment, above the tail fin. SPINES Many species of shrimp have spines on the carapace, named for the adjacent internal organs. For example, the hepatic spine is by the liver. The location, length and appearance of these spines can help in identifying some species. Spines alongside the telson are similarly significant. See Anatomy; and Chapter Two. TIGER SHRIMP Striped shrimp, mostly from southern Asia and Australia. See Colors of Shrimp. SPIRILLI Spiral-shaped bacteria.
Once the genus is understood, the first word is often abbreviated to its initial. If we are discussing a number of species with Perweus as the first name, such as Perweus mono don , subsequent references to species would be in the form P. monodon. This convention is also used in this book. Occasionally, three-word names are given for species. The third word sometimes indicates a sub-species. For practical purposes, it may be ignored. The scientific names in Latin are given throughout this book.
An Illustrated Guide to Shrimp of the World by Claus Frimodt, Ian Dore