Whip-spider
Guides
Paraphrynus
whip spider, tailless whip scorpion
Paraphrynus is a genus of whip spiders (order Amblypygi) in the family Phrynidae, distributed from the southwestern United States through Central America and the Caribbean. Most species are endemic to Mexico. These nocturnal arachnids are characterized by extraordinarily long, sensory front legs (antenniform legs) used for navigation and prey detection, and spiny pedipalps for capturing prey. Research has demonstrated remarkable homing abilities in some species, with individuals navigating back to refuges from distances exceeding 10 meters using primarily olfactory cues detected by their antenniform legs rather than vision.
Phrynus
whip spiders, tailless whip scorpions
Phrynus is a genus of whip spiders (order Amblypygi) comprising approximately 40 described species, primarily distributed in tropical and subtropical regions of the New World. The genus is characterized by dorsoventrally flattened bodies, extraordinarily elongated antenniform front legs used for sensory detection, and raptorial pedipalps for prey capture. Most species inhabit forested environments where they shelter in crevices, under rocks, or in tree holes during daylight hours and emerge nocturnally to hunt. Several species exhibit notable behavioral complexity including territoriality, cannibalism, maternal care of offspring, and sophisticated navigational abilities using multisensory cues.
Phrynus marginemaculatus
spotted tailless whip scorpion, Florida tailless whipscorpion
Phrynus marginemaculatus is an amblypygid arachnid native to southern Florida, the Bahamas, Cuba, and Hispaniola. It is the only amblypygid species in the US east of the Mississippi River and the most commonly studied whip spider species. This nocturnal predator possesses extraordinarily elongated first pair of legs adapted as sensory organs for detecting prey, mates, and environmental features in darkness. The species exhibits complex navigational abilities including multisensory configural learning for shelter recognition, and has evolved a plastron enabling underwater breathing for up to 24 hours.