One of the mysteries of the English language finally explained.
(in some spiders) an additional spinning organ with numerous fine pores, situated in front of the spinnerets.
- ‘The cribellum is a cigar-shaped plate on the underside of the abdomen, in front of the spinnerets.’
- ‘The cribellum kept the original function (making spinning threads), the colulus not.’
- ‘Cribellate silk is combed out from the cribellum using the calamistrum, a group of specialized, curved setae on the metatarsus of the fourth leg.’
- ‘Six spinnerets with different types of spigots and a specialised spinning organ called the cribellum.’
- ‘When a Uloborus emerges from an egg sac, its cribellum is not formed and it can not produce capture threads until it molts (sheds its exoskeleton) and enters the next developmental stage.’
Late 19th century: from late Latin, diminutive of cribrum ‘sieve’.
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