infraorder

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Related to infraorders: superorder

in·fra·or·der

 (ĭn′frə-ôr′dər)
n.
A taxonomic category of related organisms ranking below a suborder and above a family or superfamily.
References in periodicals archive ?
From these findings, it is assumed that some decapod sub- and infraorders evolved independently to exploit different peptidase catalytic mechanisms, including the use of serine, cysteine, and aspartic peptidases for hydrolysis of peptide bonds in food proteins, the evolution forces leading to such variable digestive mechanisms remain unknown.
gammarus belong to different infraorders, Brachyura and Astacidae, respectively (De Grave et al.
the marine clawed lobsters; infraorders Axiidea de Saint Laurent, 1979 and Gebiidea de Saint Laurent, 1979 (formerly collectively known as Thalassinidea); and the infraorder Anomur MacLeay, 1838.
The metepimeron of the terrestrial infraorders of "higher" Heteroptera is usually regarded as greatly reduced to absent or part of the thoracic endoskeleton (cf.
The objective of this study was to determine the taxonomic composition and ecological aspects of the decapod crustacean fauna belonging to the infraorders Anomura and Brachyura in shallow marine and estuarine waters of southern Bahia.
Most species of the aquatic and semi-aquatic Heteroptera belong to the infraorders Leptopodomorpha, Gerromorpha and Nepomorpha, with the last two encompassing approximately 92% of the aquatic bugs diversity (Polhemus & Polhemus 2008).
Based on the latest classification scheme adopted by the Orthoptera Species File Online (Eades & Otte 2009), the or-thopteran suborder Caelifera consists of two infraorders Tridactylidea and Acrididea.
1993), mainly in that Psylloidea is the sister group of Heteropterodea, Sternorrhyncha and Cicadomorpha are paraphyletic, and in the internal relationships of the Heteroptera infraorders (Leptopodomorpha, Cimicomorpha, and Pentatomomorpha are in a polytomy, Enicocephalomorpha is the sister group of this clade, and the remaining infraorders forms a basal group in an unresolved polytomy).
The collected biological materials belong to the Infraorders Caridea and Brachyura, represented by the species Macrobrachium acanthurus (Wiegmann, 1836), M.