Hermit crab on physical characteristics, genetic information, and combined data, support the longstanding hypothesis that the king crabs in the family Lithodidae are derived hermit crabs and should be classified as a family within Paguroidea. Other researchers have challenged this, asserting that the Lithodidae (king crabs) should be placed with the Hapalogastridae in a separate superfamily Lithodoidea. Six families are formally recognized in the superfamily Paguroidea, containing around 1100 species in total in 120 genera. The fossil record of "in situ" hermit crabs using gastropod shells stretches back to the Late Cretaceous. Before that time, at least some hermit crabs used ammonites'
Triangulate cobweb spider person unless an allergic reaction occurs and there is one record of biting humans by this species in France. "S. triangulosa" is a cosmopolitan species, and is found in many parts of the world, including across North America, in southern Russia, New Zealand, and Europe. The spider is believed to be native to Eurasia and introduced elsewhere. This species is primarily a house spider, and builds webs in dark corners of buildings and other man-made structures. Triangulate cobweb spider The triangulate cobweb spider (scientific name: Steatoda triangulosa; also called the triangulate bud spider) is a common spider in the genus