Let's be pals again: major systematic changes in Palaemonidae (Crustacea: Decapoda)

PeerJ
Sammy De GraveTimothy J Page

Abstract

In recent years the systematic position of genera in the shrimp families Gnathophyllidae and Hymenoceridae has been under debate, with phylogenetic studies suggesting the families are not real family level units. Here, we review the molecular evidence as well as the morphological characters used to distinguish both families, leading to the conclusion that neither family is valid. Further, we studied the structural details of the single morphological character which distinguishes the two subfamilies (Palaemoninae, Pontoniinae) in Palaemonidae, as well as their phylogenetic relationship. As the supposed character distinction plainly does not hold true and supported by the phylogenetic results, the recognition of subfamilies in Palaemonidae is not warranted. As a consequence, all three supra-generic taxa (Gnathophyllidae, Hymenoceridae, Pontoniinae) are thus herein formally synonymised with Palaemonidae.

References

Mar 23, 2004·Nucleic Acids Research·Robert C Edgar
Feb 8, 2008·Molecular Phylogenetics and Evolution·Timothy J PageJane M Hughes
Feb 24, 2012·Systematic Biology·Fredrik RonquistJohn P Huelsenbeck
Oct 18, 2013·Molecular Biology and Evolution·Koichiro TamuraSudhir Kumar

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Datasets Mentioned

BETA
EU920911
EU921043
EU920936
KC515030
EU868754
KC515032

Methods Mentioned

BETA
Scanning Electron Microscopy
light microscopy

Software Mentioned

MrBayes
Mega
Muscle

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