146 SMITHSONIAN MISCELLANEOUS COLLECTIONS [voL. 48 
front margin 10 in.; lower margin 10 in. The anal base 64 in.; 
front margin 10 in.; hind margin 7 in.; lower margin 9g in. 
Fic. 21.—Teeth of Florida specimen enlarged. 
Teeth in lower jaw in fourteen longitudinal rows; in upper jaw 
there are thirteen longitudinal and about three hundred vertical rows 
of developed teeth. 
The lower dental plate is more tapering than the upper; the plate 
of Doctor Gill’s type of Micristodus punctatus, preserved in the U. 
S. National Museum, has the teeth in fourteen horizontal and about 
three hundred and thirty-eight vertical rows. The accompanying 
photograph of these teeth, by Mr. T. W. Smillie, gives an accurate 
idea of their form. 
The example stranded on the Florida coast was dark brownish 
gray, the carinated longitudinal lines chocolate colored; paler 
underneath; head profusely spotted with light dots, which also were 
present on the body though fewer and larger. No trace of the 
vertical light-colored transverse bands shown in Dr. Smith’s illus- 
tration, and mentioned by Mr. Kishinouye, present in this specimen, 
which is number 50,227 of the U. S. National Museum, and pre- 
served as a dried skin. 
BIBLIOGRAPHY 
Smith, Andrew. 
1829 Contributions to the Natural History of South Africa. Zool. Jour., 
No. xvi, pp. 443-444, Jan—May, 1829, London. 
Smith, Andrew. 
1845 Illustrations of the Zool. of South Africa. No. xxm, pl. 26, Lon- 
don, 1845. 
Bonaparte, C. L. 
1831 Saggio di una Distribuzione Metodica Degli Animali Vertebrati, p. 
121, Rome, 1831 (1832). (Giornale Arcadico di Scienze, etc., Vol. 
52.) 
Bonaparte, C. L. 
1838 Selachorum Tabula Analytica, p. 10, 1838. 
