
Glossary and Illustrations
(plurals in parentheses)
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Abdomen: The tail, consisting of six body segments and the telson/uropods.
Adrostral Carina: The ridge flanking the rostrum, sometimes nearly reaching the end of the carapace.
Adrostral Sulcus: The groove flanking the rostrum to the adrostral carina, sometimes nearly reaching the end of the carapace.
Antenna (Antennae): Long, paired, usually flagellate appendage projecting from the front of the cephalothorax.
Antennal Carina: The ridge extending posteriorly along dorsal extremity of antennal region, often continuous with antennal spine.
Antennal Flagellum (Antennal Flagella): Multiarticulate, whip-like terminal part of the antenna.
Antennal Peduncle: Five basal segments of the antenna, from which the flagellum arises.
Antennal Region: Area on the lateral face of the carapace posterior to and encompassing the antennal spine.
Antennal Spine: Spine situated on the anterior margin of the carapace just ventral to the orbital margin.
Antennular Flagellum (Anmnnular Flagella). Multiarticulate paired filaments (sometimes flattened and lamellate) of the antennule.