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 five pleomeres typically bear pleopods; last pleomere bears uropods. (Syn. pleonite) [Stachowitsch, 1992].
(Order Decapoda):
One of six segments (somites) of abdomen (pleon); each bears pair of appendages (pleopods). Last pleomere bears uropods and is followed by telson. (Syn. pleonite, abdominal somite) [Stachowitsch, 1992].
(Order Amphipoda):
One of six segments (somites) of abdomen (pleon). Each pleomere bears appendages (pleopods). If abdomen is subdivided into anterior pleosome and posterior urosome, then posterior three somites may be termed urosomites [Stachowitsch, 1992].
(Order Isopoda):
Pleonite [Stachowitsch, 1992].
(Order Mysida):
One of six segments (somites) of abdomen. Each pleomere may bear pair of appendages, those of first five being termed pleopods, those of sixth termed uropods [Stachowitsch, 1992].
(Order Stomatopoda):
One of six segments (somites) of abdomen; each bears pair of appendages (pleopods). Last (sixth) somite bears uropods and is followed by telson. (See also pleotelson) [Stachowitsch, 1992].
(Order Leptostraca):
One in a series of seven segments (somites) of abdomen, the first four bearing well-developed appendages (pleopods), the fifth and sixth with reduced appendages. Bears telson posteriorly. (Syn. abdominal somite) [Stachowitsch, 1992].
(Class Ostracoda):
One of five segments (somites) of abdomen. First pleomere termed genital somite, last pleomere termed anal somite. Lacks appendages. (See also urosomal segment). (Syn. abdominal somite) [Stachowitsch, 1992].
(Superorder Syncarida):
One of basically six segments (somites) of abdomen. Anterior five may bear pleopods, with last (sixth) pleomere bearing uropods, In bathynellacean. Last pleomere is fused with telson to form pleotelson. (anaspidacean: body flexed/not flexed at first pleomere) [Stachowitsch, 1992].
(Order Thermosbaenacea):
One of six segments (somites) of abdomen. Last pleomere may be fused to telson to form pleotelson. First two pleomeres bear pleopods, with last pleomere bearing uropods. (Syn. pleonite) [Stachowitsch, 1992].
(Order Euphausiacea):
One of six segments (somites) of abdomen. Each pleomere bears pair of appendages, those of first five being termed pleopods, those of sixth being termed uropods. Last pleomere bears posterior telson. (smooth, with dorsal spine, with dorsal keel) [Stachowitsch, 1992].

Crustacea glossary. . 2011.

Look at other dictionaries:

  • pleomere — see abdominal somite …   Dictionary of invertebrate zoology

  • uropod — A paired biramous appendage attached to the sixth abdominal somite in all but the true crabs and usually combining with the telson to form a tail fan [Chace and Hobbs, 1969]. An appendage of the last (6th) abdominal segment [Warner, 1977].… …   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

  • 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

  • abdominal somite — Any single division of body behind thorax. (Syn. pleomere, pleonite) [Moore and McCormick, 1969]. Any single division of body between thorax and telson. (Syn. pleomere, pleonite) [McLaughlin, 1980]. (Class Cephalocarida): One of 11 segments of… …   Crustacea glossary

  • hindgut — [Martin, 2005]. See: proctodeum [McLaughlin, 1980]. (Order Cladocera): Short posteriormost section of digestive tract between midgut and anus; may be associated with single ventral cecum. (Syn. rectum) [Stachowitsch, 1992]. (Order Notostraca):… …   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

  • pleura — See: epimere [Martin, 2005]. See: epimere. (Pl. pleurae) [Wilson, 1989]. (Order Decapoda): Pleurite [Stachowitsch, 1992]. (Order Mysida): On each side of abdominal segment (pleomere) in certiain mysidaceans, ventral extension of tergite. In… …   Crustacea glossary

  • pleurite — See: epimere [Martin, 2005]. See: epimere [McLaughlin, 1980]. (Order Decapoda): Lateral part of integument of somite (as opposed to sternite = ventral surface and tergite = dorsal surface). Most clearly visible in abdomen of shrimp like… …   Crustacea glossary

  • telson — ( ) [Baba, 2005]. Entire animal, right appendages omitted, dorsal view, based on Munida. [Baba, 2005] Last somite of body, bearing arms and commonly caudal furca or pair of cerci, growth zone for postcephalic somites located at its anterior edge …   Crustacea glossary

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