The Collaborative International Dictionary of English. 2000.
malacostracan — /mal euh kos treuh keuhn/, adj. 1. belonging or pertaining to the crustacean subclass Malacostraca, which includes the lobsters, shrimps, crabs, etc. n. 2. a malacostracan crustacean. [1825 35; < NL Malacostrac(a) order of crustacea ( < Gk, neut … Universalium
Decapod anatomy — Antennules Pereiopods … Wikipedia
petasma — A complex genital structure attached to the mesial margins of the protopodites of the first pair of pleopods in male penaeidean shrimps [Chace and Hobbs, 1969]. Abdominal appendage modified as gonapophysis in males of some eucarids, syncarids,… … Crustacea glossary
appendix interna — A slender rodlike lappet on the mesial ,argin of the endopod of the second through fifth pleopods of shrimps; it is provided with terminal hooked setae by which the two pleopods of a pair must be joined mesially. (Pl. appendices internae) [Chace… … 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
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
Prawn — For other uses, see Prawn (disambiguation). Dendrobranchiata Temporal range: Famennian–Recent … Wikipedia
protopod — Peduncle of an appendage; in unmodified form, consisting of one coxal and one basal article. (Syn. protopodite) [Williams, 1984]. Proximal portion of limb, consisting of precoxa, coxa, and basis, fused together in some forms; its distal edge… … Crustacea glossary
retinaculum — Small hook at tip of appendices internae (e.g., Caridea), one of many serving to join left and right pleopods together. (Pl. retinacula) (Syn. cincinnulus) [Moore and McCormick, 1969]. Small hook at tip of appendix interna, one of many serving to … Crustacea glossary
