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The lower jaw of dogfish:

Circulatory Anatomy of the Dogfish Shark - Phoenix College

Respiratory Anatomy of the Dogfish Shark; The specimen in the photograph was prepared by cutting across the gill slits from the pectoral girdle to the corner of the mouth. The chin was cut across the ventral musculature to free the lower jaw and peal it to one side.

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Endoskeleton of Dogfish (Scoliodon): With Diagram ...

The lower jaw has two Muckel’s cartilages united anteriorly. At its posterior end each Meckel’s cartilage has an articular surface for a movable joint with the upper jaw. ... In Dogfish (Scoliodon) some of the cartilages are lost or fused with others. It has all five basibranchials fused to form a single cartilage.

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Dogfish - an overview ScienceDirect Topics

The spiny dogfish shark, ... The pectoral fin neurons which are influenced by lower jaw stimulation probably receive their information via the mesencephalic trigeminal nucleus (Jüch, 1981) from trigeminus-innervated perioral skin stretch and/or deep mechanoreceptors ...

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Dogfish Shark Dissection - Miami

the spiracle and five gill slits and also contains the tongue in dogfish. Note the taste buds on the tongue. To view this area, cut through the left jaw of the dogfish and perpendicularly through the center of the gills to the pectoral fin. Fold a paper towel over the teeth and use your scissors to open the mouth wide.

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Dissection of the Spiny Dogfish Shark – Squalus acanthias ...

Dissection of the Spiny Dogfish Shark – Squalus acanthias Biology 110 – Penn State New Kensington (D. Sillman - adapted from ‘Laboratory Studies in Integrated Zoology’ by Hickman and Hickman) ... up to the lower jaw. It is best to do this dissection by carefully following the ventral aorta forward as you remove the muscle tissue.

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Digestive System - UBC Zoology

The oral cavity contains the tongue and teeth. The pharynx is the portion leading past the spiracle and five gill slits and also contains the tongue in dogfish. Note the taste buds on the tongue. To view this area, cut through the left jaw of the dogfish and perpendicularly

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External Features and Muscle System - UBC Zoology

Dogfish Branchiomeric Muscles. The first arch contains the jaw muscles. The adductor mandibulae, a large muscle below the spiracle, closes the jaw. The intermandibularius is on the ventral surface, posterior to the jaw. It originates on the Mechel's cartilage (lower jaw) and inserts on the central raphe. Its function is to elevate the floor of ...

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Dogfish - an overview ScienceDirect Topics

The spiny dogfish shark, ... and kephale = head) are so called because their upper jaw is fused to the cranium (unlike the condition in sharks). They possess an operculum that covers the gills (thus there is a single opening on either side of the head, as occurs in bony fishes). ... have a lower inherent burst rate and will therefore be ...

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Dissection of the Spiny Dogfish Shark – Squalus acanthias ...

Dissection of the Spiny Dogfish Shark – Squalus acanthias Biology 110 – Penn State New Kensington (D. Sillman - adapted from ‘Laboratory Studies in Integrated Zoology’ by Hickman and Hickman) ... up to the lower jaw. It is best to do this dissection by carefully following the ventral aorta forward as you remove the muscle tissue.

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Viper dogfish - Wikipedia

The viper dogfish feeds primarily on bony fishes, notably lanternfishes in the genera Benthosema and Diaphus, and also takes crustaceans. Its long jaws and slender teeth are adapted for grasping rather than cutting, in contrast to the short jaws and saw-like lower teeth of other dogfish sharks that are suited for excising chunks of meat.

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Prickly Dogfish, Oxynotus bruniensis (Ogilby, 1893) - The ...

The Prickly Dogfish has short, snout, lanceolate (spear or lance-shaped) teeth in the upper jaw, and blade-like teeth in the lower jaw. This arrangement of teeth and the fleshy lipped mouth bears some resemblance to the Cookie Cutter Shark.

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Dogfish - an overview ScienceDirect Topics

The spiny dogfish shark, ... and kephale = head) are so called because their upper jaw is fused to the cranium (unlike the condition in sharks). They possess an operculum that covers the gills (thus there is a single opening on either side of the head, as occurs in bony fishes). ... have a lower inherent burst rate and will therefore be ...

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(PDF) Contribution to the knowledge of morphology of teeth ...

Dogfish teeth are almost identical, with the differentiation in size between the upper and lower jaw. The lower teeth are up to two times larger and more robust than the teeth located in the upper ...

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Viper Dogfish PLANET SHARK DIVERS

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 affected by the hyomandibular bone, which is articulated to the skull in a manner that allows it

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Dogfish - an overview ScienceDirect Topics

Gerardo De Iuliis PhD, Dino Pulerà MScBMC, CMI, in The Dissection of Vertebrates (Second Edition), 2011. Introduction. The spiny dogfish shark, Squalus acanthias, belongs to Chondrichthyes, which first appeared in the Silurian Period and is among the earliest to branch off from the rest of the gnathostomes (jawed vertebrates).Living chondrichthyeans comprise the sharks and rays ...

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Receptor Organs of Dogfish (Scoliodon): With Diagram ...

In Dogfish (Scoliodon), the eyes are very large and housed in orbits on the lateral sides of cranium. Each eye is elliptical and supported not only by the recti and oblique muscles but also by a cartilaginous optic pedicel which connects the eye-ball to the orbit. ... The jugal canal gives off a mandibular canal to the lower jaw. The canals are ...

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The Prickly Dogfish Shark Is A Rare Type Of Shark - Shark ...

The mouth has thick fleshy lips, spear-shaped teeth in the upper jaw, and blade-like teeth in the lower jaw. This anatomy resembles the mouth of the Cookie Cutter Shark . These dogfish spend time lying flat on the sea floor, so their diet is thought to consist of benthic fish and invertebrates.

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Dogfish Shark Nervous System Flashcards Quizlet

Branch 2 of the facial nerve (VII), and supplies the lateral line organs and Ampullae of Lorenzini over the upper jaw and underside of the rostrum. Hyomandibular branch Branch 3 of the facial nerve (VII), and supplies the hyoid muscles, lining of the mouth, lateral line organs on the skin over the lower jaw.

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Lab 6: Form and Function of the Muscular System - Quizlet

Explain (consider the function of these muscles in the dogfish). Dogfish. In the dogfish, the axial muscles pull on the vertebral column to produce lateral undulations for swimming - they are the only muscles producing the forces needed for locomotion. ... Although both of these muscles elevate the lower jaw, they insert in different locations ...

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(PDF) Conservation and variation in feeding mechanism of ...

Upper jaw protrusion in the spiny dogfish is not restricted by its orbitostylic jaw suspension; rather, the upper jaw is protruded by 30 % of its head length, considerably more than in the lemon ...

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Hooktooth Dogfish PLANET SHARK DIVERS

Teeth and Jaw: The lips of the Hooktooth dogfish are thin. The mouth is long, arched and broad with small hook-like teeth in both the upper and lower jaws. They are narrow with slender, erect cusps typically without cusplets and no blades. There are about 60 rows of teeth in either jaw. Head: The

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Class Chondrichthyes: Cartilaginous Fishes Fishes The ...

Both the upper and lower jaws of sharks are provided with many sharp, triangular teeth. The front row of functional teeth on the edge of the jaw is backed by rows of developing teeth that replace worn teeth throughout the life of the shark (Figure 26-8 and 26-9).

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Viper dogfish - Wikipedia

The viper dogfish feeds primarily on bony fishes, notably lanternfishes in the genera Benthosema and Diaphus, and also takes crustaceans. Its long jaws and slender teeth are adapted for grasping rather than cutting, in contrast to the short jaws and saw-like lower teeth of other dogfish sharks that are suited for excising chunks of meat.

Read More
Prickly Dogfish, Oxynotus bruniensis (Ogilby, 1893) - The ...

The Prickly Dogfish has short, snout, lanceolate (spear or lance-shaped) teeth in the upper jaw, and blade-like teeth in the lower jaw. This arrangement of teeth and the fleshy lipped mouth bears some resemblance to the Cookie Cutter Shark.

Read More
Hooktooth Dogfish PLANET SHARK DIVERS

Teeth and Jaw: The lips of the Hooktooth dogfish are thin. The mouth is long, arched and broad with small hook-like teeth in both the upper and lower jaws. They are narrow with slender, erect cusps typically without cusplets and no blades. There are about 60 rows of teeth in either jaw. Head: The

Read More
Dogfish - an overview ScienceDirect Topics

The spiny dogfish shark, ... and kephale = head) are so called because their upper jaw is fused to the cranium (unlike the condition in sharks). They possess an operculum that covers the gills (thus there is a single opening on either side of the head, as occurs in bony fishes). ... have a lower inherent burst rate and will therefore be ...

Read More
(PDF) Contribution to the knowledge of morphology of teeth ...

Dogfish teeth are almost identical, with the differentiation in size between the upper and lower jaw. The lower teeth are up to two times larger and more robust than the teeth located in the upper ...

Read More
The Prickly Dogfish Shark Is A Rare Type Of Shark - Shark ...

The mouth has thick fleshy lips, spear-shaped teeth in the upper jaw, and blade-like teeth in the lower jaw. This anatomy resembles the mouth of the Cookie Cutter Shark . These dogfish spend time lying flat on the sea floor, so their diet is thought to consist of benthic fish and invertebrates.

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Why do people hate dogfish? World Sea Fishing Forums

May 22, 2008  I'd rather catch dogfish than nothing but make sure you can use your t-bar! ... Just put the point of your hook through the lower and upper jaw of the Mackerals head and cast.....Bobs your Uncle, no more Doggies only bigger fish! :thumbs: " For we are the Vikings, the tamers of the deep".

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The Fish of Black Lake » Black Lake, NY

Mudfish, Mud Pike, Dogfish, Grindle, Blackfish, Cottonfish, Swamp Bass, Cypress Trout. Characteristics The bowfin is the only living representative of an ancient family of fishes. It has an air-bladder which functions somewhat like a lung, and they are often seen near

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Shark Identification for Cooperative Shark Tagging Program ...

third upper jaw tooth from a scalloped hammerhead shark. ... Smooth Dogfish Mustelus canis. ... Anal, first and second dorsal, pectoral, and lower caudal fins black-tipped (look as if dipped in jet black paint) in specimens >2.6 ft (0.8 m) First dorsal fin fairly small, originating over or just behind free tips of pectoral fins, apex rounded ...

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Class Chondrichthyes: Cartilaginous Fishes Fishes The ...

Both the upper and lower jaws of sharks are provided with many sharp, triangular teeth. The front row of functional teeth on the edge of the jaw is backed by rows of developing teeth that replace worn teeth throughout the life of the shark (Figure 26-8 and 26-9).

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Velvet Dogfish Zameus squamulosus Shark Database

The Velvet Dogfish is a small and slender black dogfish species, has two small dorsal fin spines, a moderately long snout, small lanceolate teeth in their upper jaw and large, high cutting teeth in their lower jaw. Reaching a maximum total length of 69 cm, females mature at 59 cm while males mature at 49 cm. Little else is known of their biology.

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functional analysis of jaw suspension in elasmobranchs ...

Abstract. The morphology of the jaw suspension and upper jaw are quantified and related to upper jaw protrusion in five elasmobranchs possessing four jaw suspension types: broadnose sevengill, Notorynchus cepedianus, orbitostylic — amphistylic; spiny dogfish, Squalus acanthias, orbitostylic; bonnethead, Sphyrna tiburo, and lemon, Negaprion brevirostris, hyostylic; and Atlantic guitarfish ...

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Jaw 3D models - Sketchfab

Spiny Dogfish (Squalus acanthias) Jaw. 3 Views 0 Comment. 1 Like Unlike. Spiny Dogfish (Squalus acanthias) Jaw. 4 Views 0 Comment. 1 Like Unlike. Spiny Dogfish Jaw Prep. 7 ... Lower jaw of young woolly rhinoceros. 11 Views 0 Comment. 1 Like Unlike. View all Related tags. teeth ...

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The homology of odontodes in gnathostomes: insights from ...

Tooth and dermal denticle development. As mentioned by Mellinger and Wrisez [] the first developing dermal denticles (caudal primary scales) and teeth could be observed at the very tip of the tail and the lower jaw, respectively (Figure (Figure1A, 1A, insets).In order to follow the pattern of mineralization in the first developing teeth and dermal denticles, jaws and tails dissected from ...

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