Pharyngeal Teeth

Pharyngeal Teeth

 

teeth located on the gills of bonefish. The lower pharyngeal teeth develop only on the fifth gill arch, which corresponds to the ceratobranchiale (the upper element of the lower half of the arch) of other arches. Upper pharyngeal teeth usually develop on upper elements (pharyngobranchialia) growing between the second, third, and fourth gill arches. The pharyngeal teeth retain food and in many cases also reduce it, by crushing or grinding. In the course of a fish’s life these teeth are replaced several times. The number, form, and position of the teeth varies in different fish, and these variations are an important feature in determining the species of fish.

References in periodicals archive ?
In this work we extend our microichthyological research to emphasize the morphology of jaw teeth, pharyngeal teeth, gill rakers and their bony cores in flatfishes.
We recorded the presence of fish by identifying scales, otoliths, and pharyngeal teeth in the sample.
Pharyngeal teeth of the Freshwater Drum (Aplodinotus grunniens) a predator of the Zebra Mussel (Dreissena polymorpha).
pecosensis, its forward-facing mouth, raptorial pharyngeal teeth, and habitat associations suggest it feeds in fluvial habitats (Hubbs, 1941; Hatch et al., 1985; Bestgen and Platania, 1990; Hoagstrom et al., 2008a), most likely on drifting animals entrained within the column or on the surface of water.
These masses are covered with small pointed pharyngeal teeth that are angled back toward the stomach.
Pharyngeal teeth. Teeth on lower pharyngeal element bevelled; most teeth slender, only small number in centre of posterior part of dentigerous area enlarged (Figs 9a, 9b).
So fish that have fewer oral teeth also have fewer pharyngeal teeth. This shows that on some level there's a genetic control that governs the number of teeth in both regions," said Fraser.
Dorsal fin rays, the vertebrate film and pharyngeal teeth of B.
72 f, g) tentatively assigned upper and lower pharyngeal plates, premaxillae, and isolated pharyngeal teeth to P.
[FIGURE 1 OMITTED] Order Cypriniformes Family Cyprinidae (Minnows) Cyprinidae, genus undetermined ROM 43684, 43685 incomplete pharyngeal arch; 43652, 43686- 43691 pharyngeal teeth.
Hence in a visual feeder such as the largemouth bass, gustatory signals affecting the final swallowing of suitable prey may be provided by taste buds co-located with the pharyngeal teeth that crush and otherwise damage prey organisms prior to swallowing.