. The Bashford Dean memorial volume : archaic fishes. Fishes; Sharks; Fishes, Fossil. 272 Bashford Dean Memorial Volume in dorsal, lateral and ventral aspects; and our Figure 15, plate V, in which the teeth are by photography enlarged to about 13 mm., , about three times natural sizie. As will be seen in our table No. VIII, different authors have given different counts of the rows of teeth in the jaws of their specimens. Mertens (1921), who is not included in the table, gave 16 rows only for each jaw, upper and lower, of his fish. This is mani' festly an error, due apparently to his failur
. The Bashford Dean memorial volume : archaic fishes. Fishes; Sharks; Fishes, Fossil. 272 Bashford Dean Memorial Volume in dorsal, lateral and ventral aspects; and our Figure 15, plate V, in which the teeth are by photography enlarged to about 13 mm., , about three times natural sizie. As will be seen in our table No. VIII, different authors have given different counts of the rows of teeth in the jaws of their specimens. Mertens (1921), who is not included in the table, gave 16 rows only for each jaw, upper and lower, of his fish. This is mani' festly an error, due apparently to his failure to count the rows in the corners of the mouth, where the teeth grade into shagreen. Garman () counted 28 rows above and 27 below, but later () corrected this to 26 and 25 respectively. From our illustrations showing mouth and teeth (Plate III, figures 9 and 10), it is understandable why there is an odd number of rows below, due to the median row at the symphysis of the lower 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 Dean, Bashford, 1867-1928; Gudger, E. W. (Eugene Willis), 1866-1956. New York : Published by order of the trustees
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Keywords: ., book, bookcentury1900, booksubjectfishes, booksubjectfishesfossil
