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Pages in category "Hexanchidae" The following 4 pages are in this category, out of 4 total. This list may not reflect recent changes. G. Gladioserratus; H ...
Cow sharks are a shark family, the Hexanchidae, characterized by an additional pair or pairs of gill slits. Its 37 species are placed within the 10 genera: Gladioserratus , Heptranchias , Hexanchus , Notidanodon , Notorynchus , Pachyhexanchus , Paraheptranchias , Pseudonotidanus , Welcommia , and Weltonia .
Common name Scientific name authority Preferred habitat IUCN status Range Family Suidae: pigs: Palawan bearded pig: Sus ahoenobarbus Huet, 1888: Forest NT: Bornean bearded pig: Sus barbatus S. Müller, 1838: Wide range of habitats where occurring; Possibly extirpated VU: Visayan warty pig: Sus cebifrons Heude, 1888: Forest and grassland CR ...
The broadnose sevengill shark (Notorynchus cepedianus) is the only extant member of the genus Notorynchus, in the family Hexanchidae.It is recognizable because of its seven gill slits, while most shark species have five gill slits, with the exception of the members of the order Hexanchiformes and the sixgill sawshark.
Due to their primitive anatomy, hexanchiforms were previously considered the most basal group of sharks. However, more recent phylogenetic studies indicate that while primitive, they in fact belong to the superorder Squalomorphii, which also contains dogfishes, angelsharks, and sawsharks, although they are thought to be the most basal member of the group.
Species are assessed solely according to their population in the Philippines and hence may not be in line with other conversation lists such as the IUCN Red List which list the crab-eating macaque (including subspecies the Philippine long-tailed macaque) as vulnerable but is not included in the 2019 release of the Philippines' national Red List.
On December 2, 2017, the ROV camera of Paul Allen's research vessel RV Petrel captured video footage an adult bluntnose sixgill shark lurking around a World War II shipwreck in Ormoc Bay, Philippines at a depth of 259 m (850 ft). This was the first time the species was photographed in Philippine waters. [16]
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