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The viper dogfish is the only dogfish species that lacks a suborbital muscle, which is normally responsible for pulling the jaws forward when biting. Jaw protrusion is instead effected by the hyomandibular bone, which is articulated to the skull in a manner that allows it to swing down and forward. This unique arrangement serves to increase the ...
Aculeola nigra F. de Buen, 1959 (Hook-tooth dogfish) Genus Centroscyllium J. P. Müller & Henle, 1841. Centroscyllium excelsum Shirai & Nakaya, 1990 (High-fin dogfish) Centroscyllium fabricii (J. C. H. Reinhardt, 1825) (Black dogfish) Centroscyllium granulatum Günther, 1887 (Granular dogfish) Centroscyllium kamoharai T. Abe, 1966 (Bare-skin ...
The hyomandibula, commonly referred to as hyomandibular [bone] (Latin: os hyomandibulare, from Greek: hyoeides, "upsilon-shaped" (υ), and Latin: mandibula, "jawbone"), is a set of bones that is found in the hyoid region in most fishes. It usually plays a role in suspending the jaws and/or operculum (teleostomi only).
Because its jaw can unhinge, the viperfish can eat large prey for its size. Pacific Viperfish Use Bioluminescence. Like many of the sea creatures that live at these depths, the Pacific viperfish ...
Squalus is a genus of dogfish sharks in the family Squalidae.Commonly known as spurdogs, these sharks are characterized by smooth dorsal fin spines, teeth in upper and lower jaws similar in size, caudal peduncle with lateral keels; upper precaudal pit usually present, and caudal fin without subterminal notch.
Mandibular fracture, also known as fracture of the jaw, is a break through the mandibular bone. In about 60% of cases the break occurs in two places. [ 1 ] It may result in a decreased ability to fully open the mouth. [ 1 ]
Six students were taking an intensive workshop at the center last summer, and together they came up with a lead that the bone belonged to Yager. One of the people assisting, Ethan Schwartz, was an ...
Dogfish sharks use their strong jaw and sharp teeth to consume their prey. The spiny dogfish has broken several records in the areas of migration and gestation. This shark tends to be a highly migratory species: one shark was recorded as travelling 8,000 km (5,000 miles) after being tagged in Washington state, United States, and found again ...