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Curiously, laboratory-reared specimens of the common snook showed meristic variations in vertebrae, fin ray, and gill raker numbers not observed in specimens from the wild.
The ciscoes (or ciscos) are salmonid fish that differ from other members of the genus Coregonus in having upper and lower jaws of approximately equal length and high gill raker counts.
As the raker pares the bottom of the kerf, a strip of wood is lifted upward, and curled forward into the gullet.
The Orontes nase is distinguished from congeners by its usual pharyngeal tooth formula of 7-7, as well as by other subtle morphological traits, such as gill raker count and scale structure.
In the last revision of the carangids of the Indo-Pacific, William Smith-Vaniz found that the two separate populations have differing gill raker counts and breast squamation, leading him to suggest the possibility of these being two separate species.
The descriptive name was applied in 1927 by surveyor Arval Anderson and refers to how the shape of the peak resembles the "raker tooth" of a crosscut saw.

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