Antenna (zoology)
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An antenna is one of a pair of appendages used for sensing in arthropods. Antennae are sometimes referred to as feelers.
Large antennae on a longhorn beetle
A spiny lobster, showing the enlarged second antennae
The large flattened plates in front of the eyes of a slipper lobster are the modified second antennae.
The crab Cancer pagurus, showing its reduced antennae
Arthropod leg
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The arthropod leg is a form of jointed appendage of arthropods, usually used for walking. Many of the terms used for arthropod leg segments are of Latin origin, and may be confused with terms for bone
The leg of a squat lobster, showing the segments; the ischium and merus are fused in many decapods
Seven-segmented legs of Scutigera coleoptrata
Zabalius aridus showing full leg anatomy, including plantulae under each tarsomere
Acanthacris ruficornis, legs saltatorial, femora with bipennate muscle attachments, spines on tibiae painfully effective in a defensive kick