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Zur Deutung der Carapaxfurchen der Astacidea (Crustacea, Decapoda)
Author(s) -
ALBRECHT HENNING
Publication year - 1981
Publication title -
zoologica scripta
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.204
H-Index - 64
eISSN - 1463-6409
pISSN - 0300-3256
DOI - 10.1111/j.1463-6409.1981.tb00503.x
Subject(s) - carapace , decapoda , crustacean , biology , zoology
The carapace grooves of decapod Crustacea are hitherto considered as remnants of somit boundaries. This hypothesis is rejected for theoretical reasons and on the basis of morphological studies of recent crayfishes and lobsters. The grooves are recognized as mechanically induced secondary structures resulting from the attachment of different muscles to the carapace. The grooves can be used for the diagnosis of certain systematic groups, but are of little value for phylogenetic considerations.