Decapod anatomy Decapod anatomy The decapod crustacean, such as a crab, lobster, shrimp or prawn, is made up of 20 body segments grouped into two main body parts, the cephalothorax and the pleon (abdomen). Each segment may possess one pair of appendages, although in various groups these may be reduced or missing. They are, from head to tail: The head also bears the (usually stalked) compound eyes. The distal portion of a mandible or maxilla which has a sensory function is known as a palp. Maxillipeds are appendages modified to function as mouthparts. Particularly in the less advanced decapods, these can be
Hermit thrush Hermit thrush The hermit thrush ("Catharus guttatus") is a medium-sized North American thrush. It is not very closely related to the other North American migrant species of "Catharus", but rather to the Mexican russet nightingale-thrush. The specific name "guttatus" is Latin for "spotted". This species measures in length, spans across the wings and weighs . Among standard measurements, the wing chord is , the bill is and the tarsus is . It is more compact and stockier than other North American "Catharus" thrushes, with relatively longer wings. The hermit thrush has the white-dark-white underwing pattern characteristic of "Catharus" thrushes. Adults