posterior pleon

См. также в других словарях:

• pleon — A term that refers to the abdomen in malacostracans [Brusca and Brusca, 2002]. Abdomen of crustacean [Moore and McCormick, 1969]. Abdominal body division, usually comprising five somites and often bearing biramous pleopods [Holdich and Jones,… …   Crustacea glossary

• abdomen — Posterior part of body, of six segments or somites, sometimes including tailfan [Poore, 2004]. Region of the body posterior to cephalothorax, consisting of six body segments and telson (see Fig. 13) [Hobbs and Jass, 1988]. That part of the body… …   Crustacea glossary

• thorax — Anteriormost division of the crustacean trunk [Brusca and Brusca, 2002]. Middle body region of eight somites bearing maxillipeds and pereopods [Poore, 2004]. see Cephalothorax [Butler, T.H.]. Tagma between cephalon and abdomen comprising anterior …   Crustacea glossary

• somite — A body segment, especially of the abdomen [Chace and Hobbs, 1969]. Body segment, as in abdominal somites 1 6 [Poore, 2004]. Body segment, especially of the abdomen [Butler, T.H.]. Division of body (head, thorax, abdomen) with exoskeleton… …   Crustacea glossary

• pleomere — See: abdominal somite [Martin, 2005]. See: abdominal somite [McLaughlin, 1980]. (Order Tanaidacea): One of six segments (somites) of abdomen (pleon). Last (sixth) or last two (fifth and sixth) pleomeres fused to telson to form pleotelson. First… …   Crustacea glossary

• pereon — Anterior portion of trunk with thoracopods, exclusive of maxillipedal somites and appendages. (Syn. paraeon, pereion) [McLaughlin, 1980]. Term referring to the free (unfused) thoracomeres posterior to the maxilliped bearing thoracomeres in… …   Crustacea glossary

• pleonite — See: abdominal somite [Martin, 2005]. A segment of the pleotelson [Wilson, 1989]. See: abdominal somite [McLaughlin, 1980]. Segments of the abdomen. (Syn. pleomeres) [Brusca and Brusca, 2002]. Somite of pleon [Holdich and Jones, 1983]. (Order… …   Crustacea glossary

• pleopod — An appendage attached to an abdominal segment [Ingle, 1983]. An appendage of any one of the first five abdominal segments [Warner, 1977]. Biramous, often natatory, appendage of pleon [Holdich and Jones, 1983]. Distinctive, usually biramous,… …   Crustacea glossary

• cephalon — A term that refers to the head of a crustacean [Brusca and Brusca, 2002]. Anterior region of the body bearing the antennules, antennae, eyes, mandibles, maxillules, and maxillae [Holdich and Jones, 1983]. Anteriormost tagma, bearing eyes, mouth,… …   Crustacea glossary

• thoracomere — A segment of the thorax (regardless of whether any of these segments is fused to the head) [Brusca and Brusca, 2002]. Somite of thorax [Moore and McCormick, 1969]. Somite of thorax [McLaughlin, 1980]. Thoracic segments [Brusca and Brusca, 2002].… …   Crustacea glossary

• heart — (Order Cladocera): In circulatory system, typically short, muscular pumping organ located anterior to brood chamber in trunk. Blood enters heart through single pair of ostia and is pumped anteriorly into a sinus, although certain predatory water… …   Crustacea glossary