Onychophora
E450910
Onychophora, commonly known as velvet worms, is a small phylum of soft-bodied, segmented invertebrates that bridge characteristics of annelids and arthropods and are notable for their unique slime-shooting predatory behavior.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Onychophora canonical | 2 |
Statements (74)
| Predicate | Object |
|---|---|
| instanceOf |
phylum
ⓘ
taxon ⓘ |
| clade | Panarthropoda NERFINISHED ⓘ |
| commonName | velvet worms ⓘ |
| distribution |
Africa
NERFINISHED
ⓘ
Australasia NERFINISHED ⓘ Central America NERFINISHED ⓘ South America NERFINISHED ⓘ Southeast Asia NERFINISHED ⓘ |
| hasCharacteristic |
adhesive slime used to capture prey
ⓘ
ancient lineage dating back to Cambrian relatives ⓘ antennae ⓘ body covered with papillae ⓘ body length typically 0.5 to 20 centimeters ⓘ carnivorous diet ⓘ chitinous claws ⓘ cryptic coloration ⓘ cutaneous respiration ⓘ direct development ⓘ flexible cuticle ⓘ fossil relatives known as lobopodians ⓘ growth by molting ⓘ hemocoel ⓘ hydrostatic skeleton ⓘ important for understanding arthropod origins ⓘ internal fertilization ⓘ lack of free-living larval stage ⓘ ladder-like nervous system ⓘ limited geographic ranges in many species ⓘ low dispersal ability ⓘ moist habitat preference ⓘ nocturnal behavior ⓘ non-calcified cuticle ⓘ number of leg pairs typically between 13 and 43 ⓘ open circulatory system ⓘ oral papillae ⓘ oral papillae used to eject slime ⓘ oviparous reproduction in some species ⓘ ovoviviparous reproduction in some species ⓘ pair of ventral nerve cords ⓘ paired slime glands opening via oral papillae ⓘ preference for humid tropical and temperate forests ⓘ preference for leaf litter and rotting logs ⓘ prey digestion via external enzymes ⓘ prey includes small arthropods ⓘ prey includes termites and insects ⓘ segmented body ⓘ segmented gonads ⓘ segmented nephridia ⓘ sensitivity to desiccation ⓘ separate sexes ⓘ sexual dimorphism in some species ⓘ simple eyes ⓘ slime glands ⓘ slime-shooting predation ⓘ slow evolutionary rate in morphology ⓘ slow movement ⓘ soft-bodied ⓘ spermatophore-based reproduction in many species ⓘ terrestrial lifestyle ⓘ tracheal respiratory system ⓘ unjointed lobopod legs ⓘ velvety integument ⓘ viviparous reproduction in some species ⓘ |
| hasOrder |
Peripatidae
NERFINISHED
ⓘ
Peripatopsidae NERFINISHED ⓘ |
| hasUse | model for panarthropod evolution ⓘ |
| kingdom | Animalia ⓘ |
| relatedTo |
Annelida
NERFINISHED
ⓘ
Arthropoda NERFINISHED ⓘ |
| studiedIn |
comparative morphology
ⓘ
evolutionary biology ⓘ phylogenetics ⓘ |
| superphylum | Ecdysozoa NERFINISHED ⓘ |
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.