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Crangon allmani
''Crangon allmani'', also spelled Crangon allmanni, is a species of shrimp in the genus Crangon. It is at home in the
Northeast Atlantic Ocean.〔 With the second part of the species name, ''allmani'', Kinahan was honouring the Irish natural historian George J. Allman.〔 According to J. A. Allen, the spelling ''allmanni'' is a writing error and the correct spelling is ''allmani''.〔
== Features ==
''Crangon allmani'' body length is up to 77 mm, but is typically shorter. It has a brownish-gray to reddish-gray colour. The short Rostrum is about half as long as the eyes and is small with a rounded end.〔 The Carapax is smooth except for some small items.〔 ''Crangon allmani'' can be distinguished from the North Sea shrimp Crangon crangon by a longitudinal furrow along the back on the sixth and hindmost Pleon segment. There is a ridge along each side of the furrow. There are two pairs of small thorns on the Telson.〔
Male and female specimens can be distinguished by examining the swimmerets. On the endopodite of the second swimmeret of the male there is a clamp-like appendix called the Appendix masculina.〔
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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