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Morphology of the first zoeal stage of the Mediterranean bumblebee shrimp Gnathophyllum elegans studied with both light microscopy and scanning EM

Published online by Cambridge University Press:  04 September 2013

Roland Meyer ,
Tobias Lehmann ,
Roland R. Melzer  and
Hannes Geiselbrecht
Roland Meyer*
Affiliation:
Zoologische Staatssammlung, Münchhausenstr. 21, D-81247 München, Germany
Tobias Lehmann
Affiliation:
Zoologische Staatssammlung, Münchhausenstr. 21, D-81247 München, Germany
Roland R. Melzer
Affiliation:
Zoologische Staatssammlung, Münchhausenstr. 21, D-81247 München, Germany
Hannes Geiselbrecht
Affiliation:
Zoologische Staatssammlung, Münchhausenstr. 21, D-81247 München, Germany
*
Correspondence should be addressed to: R. Meyer, Zoologische Staatssammlung, Münchhausenstr. 21, D-81247 München, Germany email: rolandmeyer@hotmail.de
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Abstract

The morphology of the first zoea of Gnathophyllum elegans is described from laboratory-reared material for the first time and analysed in detail with light and scanning electron microscopy. For systematic reasons, morphological characteristics in G. elegans are compared with those in Gnathophyllum americanum, Periclimenes amethysteus, a representative of the subfamily Pontoniinae and the closely related Hymenocera picta (Decapoda: Caridea: Hymenoceridae). We observed differences in the morphology of both Gnathophyllum-larvae, such as the number and arrangement of certain setae. Thus, larvae of the two Gnathophyllum species can be readily distinguished from each other. Further differential diagnosis with P. amethysteus confirms a high similarity between Gnathophyllum-larvae and larvae in the subfamily Pontoniinae, as already mentioned in earlier publications. The systematic relationships of the Gnathophyllidae, Hymenoceridae and Pontoniinae are discussed based on zoeal characters.

Keywords

larval morphologyfirst zoeascanning EMDecapodaPontoniinaeGnathophyllidaeGnathophyllum elegans
Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 94 , Issue 1 , February 2014 , pp. 151 - 158
Copyright
Copyright © Marine Biological Association of the United Kingdom 2013 

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