328 CONTRIBUTION TO THE MORPHOLOGY OF THE MAMMOTH. 



tusks in his monograph on the Dentition and Craniology of Ele- 

 'phas antiquus Falk," Strauch states that these two huge tusks were 

 brought from the Kolyma Eiver by the merchant Gromoff, and that 

 they were " both found still sticking in the skull." ^ 



The right tooth of this pair measures 2.25 meters from the base 

 to the tip in a straight line; its length along the curves is 3.91 

 meters; its maximum circumference 00 centimeters from the base 

 equals 40 centimeters ; and its weight is T5f kilos. On the inner side 

 42 centimeters below the tip this tooth bears a rather flat, elongated, 

 oval, sharply defined depression 19 centimeters long and G^ centi- 

 meters broad, which, as Pohlig notes, was formed after the animal 

 was killed. 



The left tooth is the larger. It measures 2.12 meters in a straight 

 line from base to tip and 4.10 meters along the curves; the maxi- 

 mum circumference is 90 centimeters at a point 48^ centimeters from 

 the base. Its weight is 84^ kilos. 



My measurements of the left tooth of this pair agree almost 

 exactly with those given by Pohlig for the right (compare Pohlig's 

 measurements, viz, 4.33 meters for the length along the curves and 

 0.9 meter for the maximum circumference at a j^oint 0.49 meter 

 from the base). On the other hand, the curvilinear length (391.5 

 centimeters) of the tooth described by him as " the other equally com- 

 plete and entirely similar mammoth tusk of the same museum '' 

 (loc. cit., -p. 323) corresponds Avith the curvilinear length of the 

 right tooth which I measured. This remarkable circumstance I can 

 onl}^ explain by the supposition that the measurements of the two 

 teeth were interchanged in the monograph cited. That the teeth 

 there referred to are the same that I am describing here appears 

 from the fact that Pohlig gives as a peculiar mark of one, which 

 he calls the right, the shallow saucer-shaped depression. Further, 

 there existed in the museum no second tusk "just as complete and 

 entirely similar " besides the one described by me above as the left, 

 while these tW'O absolutely similar tusks are a unit as regards size, 

 completeness, and condition. 



A still stronger spiral twisting in proportion to the direct length 

 is shown in a tusk also to be found in the collection of the [St. Peters- 

 burg] Zoological INIuseum, which is likewise mentioned by Pohlig. 

 and of which he gives two figures.^ This tootli, which is a left one, 

 is only 98 cm. long in a straight line, as against 1.59 m. around the 

 curves. Its maximum circumference ( 00 cm. from the base) is 23.7 cm. 



a Nora Acta K. T.eop. Carol. Acad.. Bd. 1. 7, pp. 321-322 (illustration in PI. 

 B, fig. 3). 



6 A. Strauch, The Fiftieth Anniversary of the Imperial Academy of Sciences 

 of St. Petersburg, p. 331. 



c Page 322 of the monograph previously mentioned. PI. B, figs. 4, 4fl. 



