Notes
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a: ^ Jackson and Blest (1982) say, "The resolution of the receptor mosaic of Layer I in the central retina was estimated to be a visual angle of 2.4 arc min, corresponding to 0–12 mm at 20 cm in front of the spider, or 0–18 mm at 30 cm."
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b: ^ Several species of cursorial spiders drink nectar as an occasional supplement their diet, and juveniles of some orb-web spiders digest pollen while re-cycling their webs. One jumping spider (as of 2010), Bagheera kiplingi, is almost totally herbivorous.
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c: ^ "Propulsive displays" are sudden, quick movements including striking, charging, ramming and leaps.
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d: ^ Except that the Queensland variant of Portia fimbriata generally uses a "cryptic stalking" technique which makes most salticids unaware of this predator.
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e: ^ The retina is at the end of a tube. The inner end of the tube moves from side to side in one to two cycles per second, and twists 50° in a cycle that takes 10 seconds.
Read more about this topic: Portia Labiata
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