. On the anatomy of vertebrates [electronic resource] . Rock-fish (Labrus, fig. 254) ; or they may beso small, as well as numerous {denies graniformes), as to give agranulated surface to the part of the mouthto which they are attached (premaxillariesof Cossgphus).1 A progressive increase ofthe transverse over the vertical diameter maybe traced in the molar teeth of differentfishes, and sometimes in those of the sameindividual, as in Labrus, until the cylindricalform is exchanged for that of the depressedplate. Such dental plates {dentes lamelli-formes) may be found, not only circular,but ellip
. On the anatomy of vertebrates [electronic resource] . Rock-fish (Labrus, fig. 254) ; or they may beso small, as well as numerous {denies graniformes), as to give agranulated surface to the part of the mouthto which they are attached (premaxillariesof Cossgphus).1 A progressive increase ofthe transverse over the vertical diameter maybe traced in the molar teeth of differentfishes, and sometimes in those of the sameindividual, as in Labrus, until the cylindricalform is exchanged for that of the depressedplate. Such dental plates {dentes lamelli-formes) may be found, not only circular,but elliptical, oval, semilunar, sigmoid, ob-long, or even square, hexagonal, pentagonal,or triangular; and the grinding surface maypresent various and beautiful kinds of sculp-turing. The broadest and thinnest lamelli-form teeth are those that form the complexgrinding tubercle of the Diodon, fig. 257,b. The front teeth of the Flounder and Sarguspresent the form of compressed plates, atleast in the crown, and are dentes dental plates (dentes253. Palatine bone and teeth(Sllurus). v. Numerous wedge-cuneati) are set vertically in the 254
Size: 1008px × 2481px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, booksubject, booksubjectbirds, booksubjectfishes
