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 interlock right and left pleopods. (Pl. retinacula) (Syn. cincinnulus) [McLaughlin, 1980].
(Order Cumacea):
In first pair of maxillipeds, one of several small, hook-like structures along inner margin of basis. Serves to interlock left and right maxillipeds. (Syn. coupling hook) [Stachowitsch, 1992].
(Order Isopoda):
In maxilliped, one in a series of small, hook-like structures along margin of endite of second segment (basis). Serves to interlock left and right maxillipeds. (Syn. coupling seta, coupling hook) [Stachowitsch, 1992].
(Order Stomatopoda):
One in a series of hooks on appendix interna of each abdominal appendage (pleopod); interlocks with retinacula of second member of pleopod pair and permits both pleopods to move in unison [Stachowitsch, 1992].
(Superorder Syncarida):
In male anaspidacean, one in a series of small, hook-like structures along inner branch (endopod) of modified first and second pairs of pleopods. Serves to interlock left and right pleopods [Stachowitsch, 1992].

Crustacea glossary. . 2011.

Look at other dictionaries:

  • Retinaculum — (Plural Retinacula) ist ein Begriff aus der Anatomie und wird für Haltebänder verwendet. Inhaltsverzeichnis 1 Retinacula der Säugetiere 2 Retinacula der Schmetterlinge (Lepidoptera) 2.1 Retinaculum der Männchen …   Deutsch Wikipedia

  • Rétinaculum — des muscles extenseurs de la main Rétinaculum des muscles extenseurs du pied Un …   Wikipédia en Français

  • Retinaculum — or retinacula may be:Human anatomy: * Peroneal retinacula * Flexor retinaculum of the hand * Extensor retinaculum of the hand * Retinaculum musculorum flexorum pedis, in lower leg and footInvertebrate anatomy: * the Retinaculum (moth), in wing *… …   Wikipedia

  • Retinaculum — Ret i*nac u*lum, n.; pl. {Retinacula}. [L., a holdfast, a band. See {Retain}.] 1. (Anat.) (a) A connecting band; a fr[ae]num; as, the retinacula of the ileoc[ae]cal and ileocolic valves. (b) One of the annular ligaments which hold the tendons… …   The Collaborative International Dictionary of English

  • Retinacŭlum — Retinacŭlum, 1) bei den Römern ein Tau, womit das Schiff am Lande festgemacht wurde; 2) chirurgisches Instrument zum Zurück od. Festhalten von Theilen, z.B. bei der Einrichtung, ein Bruchband, Haken; 3) die Häkchen an den Samen der Akantheen,… …   Pierer's Universal-Lexikon

  • retinaculum — [ret΄ n ak′yə ləm] n. pl. retinacula [ret΄ n ak′yələ] [ModL < L, that which holds back, tether < retinere, to RETAIN + dim. suffix] Biol. an often hooked or sticky structure, band, etc. serving to hold parts, seeds, eggs, etc. together or… …   English World dictionary

  • retinaculum — A frenum, or a retaining band or ligament. [L. a band, a halter, fr. retineo, to hold back] antebrachial flexor r. thickening of distal antebrachial fascia just proximal to radiocarp …   Medical dictionary

  • retinaculum — n.; pl. la [L. retinaculum, holdfast] 1. A connecting or retaining band. 2. (ACANTHOCEPHALA) Muscular sheath of a nerve. 3. (ARTHROPODA: Crustacea) In Malacostraca, small hook at the tip of the appendix interna, interlocking the right and left… …   Dictionary of invertebrate zoology

  • retinaculum — /ret n ak yeuh leuhm/, n., pl. retinacula / leuh/. 1. Anat., Zool. any of various small structures that hook, clasp, or bind other structures to move them or hold them in place. 2. Entomol. a bristle on the butterfly forewing that clasps to the… …   Universalium

  • retinaculum — ret•i•nac•u•lum [[t]ˌrɛt nˈæk yə ləm[/t]] n. pl. la ( lə). zool. anat. any of various anatomical structures that hook, clasp, or bind individual parts, as seeds or organs, together or in place • Etymology: 1815–25; < NL; L retināculum tether… …   From formal English to slang

  • retinaculum — noun (plural retinacula) Etymology: New Latin, from Latin, halter, cable, from retinēre to hold back more at retain Date: circa 1825 any of several fibrous bands of fascia that pass over or under tendons (as at or near the ankle or wrist) and… …   New Collegiate Dictionary

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