. Animal Life and the World of Nature; A magazine of Natural History. Animal Dentition 259 parasitic in habit, and furnished with sucking cylindrical mouths in place of jaws. In these ' so-called fishes there are no true calcined teeth, the place of which is taken by horny structures serving the same use. The general character of the dentition of the common lamprey will be apparent from the accompanying illustration (Fig. 15), and it will accordingly suffice to say that the teeth of the lips are arranged in con- verging rows, which may be as many as twenty in number, with four or more in each
. Animal Life and the World of Nature; A magazine of Natural History. Animal Dentition 259 parasitic in habit, and furnished with sucking cylindrical mouths in place of jaws. In these ' so-called fishes there are no true calcined teeth, the place of which is taken by horny structures serving the same use. The general character of the dentition of the common lamprey will be apparent from the accompanying illustration (Fig. 15), and it will accordingly suffice to say that the teeth of the lips are arranged in con- verging rows, which may be as many as twenty in number, with four or more in each row. In addition to these, are a few larger teeth situated near the centre of the mouth which vary in form and arrangement in the different groups. In a Chilian species, for example, there are two tri- angular groups of three teeth each on the upper side of the mouth, opposed by two pairs of double teeth below. Lam-. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original London
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Keywords: ., bookcentury1900, bookdecade1900, bookpublisherlondo, bookyear1902
