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This topic has appeared in the trending rankings 1 time(s) in the past year. While it does not trend frequently, its appearance suggests a renewed or concentrated surge of public interest.
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Apristurus_ovicorrugatus entered the ranking for the first time today at position #. This is its highest position ever recorded.
This topic has appeared in the English Wikipedia rankings 1 time. It first appeared on 2026-05-06 and was most recently seen on 2026-05-06.
The ridged-egg catshark (Apristurus ovicorrugatus) is a species of shark belonging to the family Pentanchidae, the deepwater catsharks. This shark is found in the deep waters off northwestern Australia. The species name refers to the ridges on the egg case. Egg cases belonging to this species had been documented as early as the 1980s, but could not be matched to any species of Australian shark until scientists examined a shark specimen of previously uncertain identity in the CSIRO collection. The holotype is a gravid female collected northwest of the Dampier Archipelago, Western Australia, in 1992.
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