The caudal appendage of a larval cestode, the procercoid stage of pseudophyllid cestodes; it may also be found on the cysticercoid larvae of taenioid cestodes, as well as in many of the hymenolepidids ( e.g., Hymenolepis nana). This appendage frequently bears the hooks originally used by the hexacanth in clawing its way into the intermediate host in which the procercoid or other larval stage develops. [G. kerkos, tail + meros, part]

Medical dictionary. 2011.

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  • cercomer — n. [Gr. kerkos, tail; meros, part] (PLATYHELMINTHES: Cestoda) A posterior, knob like attachment on a procercoid or cysticercoid, usually bearing the hooks of the oncosphere …   Dictionary of invertebrate zoology

  • neotenic procercoid — (PLATYHELMINTHES: Cestoda) In Caryophyllidea, adult Archigetes that reaches sexual maturity complete with cercomer …   Dictionary of invertebrate zoology

  • hooklets — 1. Clawlike, retractile chitinous hooks that encircle or line the rostellum of the scolex of certain taenioid tapeworms for attachment to the intestinal mucosa, with the additional aid of suckers; the h. can be withdrawn and the rostellum… …   Medical dictionary

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