coxal glands
1. (ARTHROPODA: Chelicerata)
The excretory organs of arachnids; in Araneae, located opposite the coxae of the first and third legs, that function in collecting wastes into a saccule and discharging them through tubes opening behind the coxae.
2. (ARTHROPODA: Insecta)
Variously modified eversible glandular structures at the base of the legs.
3. (ONYCHOPHORA)
The nephridia of Peripatus.

Online Dictionary of Invertebrate Zoology. . 2005.

Look at other dictionaries:

  • coxal gland — ▪ zoology       in certain arthropods, one of a pair of excretory organs consisting of an end sac where initial urine is collected, a tubule where secretion and reabsorption may take place, and an excretory pore at the base (coxa) of one of the… …   Universalium

  • coxal gland — noun : one of certain paired glands with ducts opening in the coxal region of arthropods and in some forms (as spiders) functioning as excretory organs …   Useful english dictionary

  • Gilson's glands — (ARTHROPODA: Insecta) In Trichoptera, thoracic glands homologized to coxal glands or nephridia …   Dictionary of invertebrate zoology

  • podocephalic glands — (ARTHROPODA: Chelicerata) In actinotroch Acari, ancestrally four glands near the base of leg I; anterior, median, coxal, and lateral glands …   Dictionary of invertebrate zoology

  • arachnid — arachnidan /euh rak ni deuhn/, adj., n. /euh rak nid/, n. 1. any wingless, carnivorous arthropod of the class Arachnida, including spiders, scorpions, mites, ticks, and daddy longlegs, having a body divided into two parts, the cephalothorax and… …   Universalium

  • excretion — excretion1 /ik skree sheuhn/, n. 1. the act of excreting. 2. the substance excreted, as urine or sweat, or certain plant products. [1595 1605; < LL excretion (s. of excretio) that which is sifted out. See EXCRETE, ION] excretion2 /ik skree… …   Universalium

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