Calamistrum
- Pronunciation
- /kah-luh-MIS-trum/
- Category
- Anatomy
- Singular
- Calamistrum
- Plural
- Calamistra
Definition
A specialized group of curved setae (bristles) found on the metatarsus of the hind legs of some spiders, used in conjunction with the cribellum to comb out silk fibers during web construction.
Etymology
From Latin 'calamistrum', meaning 'curling iron' or 'small reed', referring to the combing action.
Example
The calamistrum of the orb-weaving spider is essential for producing its unique cribellate silk.
Synonyms
- Silk comb
- Curved setae
Related Terms
- Cribellum
- Web construction
- Setae
- Spider silk
Usage Notes
Not all spiders possess a calamistrum; it is primarily found in cribellate spiders, which produce a distinct type of silk.