Definition: The number of fossil occurrences in the Paleobiology Database (https://paleobiodb.org) that are identified as belonging to a particular taxon or any of its subtaxa.
Definition: Because of the difference in refractive index between air and water (or corneal tissue), a curved cornea is an image-forming lens in its own right. Its focal length is determined by the radius of curvature of the cornea. Many corneal eyes (eg: in land vertebrates) also have lenses, but the lens is flattened and weakened compared with an aquatic lens; most of the refractive power is provided by the cornea. Corneal eyes cannot focus in aquatic habitat.
The environments in which many philodromid crab spiders species are known to live. Select an environment to see its philodromid crab spiders species checklist.
philodromid crab spiders Habitats
The environments in which many philodromid crab spiders species are known to live. Select an environment to see its philodromid crab spiders species checklist.