154 LÖNNBERG, SOME REMAINS OP NEOMYLODON LISTAI. 



large size as those described above. The largest I have ob- 

 served in the upper margiii of this piece measured 9 mm., 

 but they are, as a rule, still smaller, 5 to 6 mm., or less. 

 Neither do they sit so close, but usually leave interspaces 

 between themselves which vary from a few millimeters to 

 1 — 2 centimeters. But, on the other hand, there are some- 

 times two situated on top of each other (conf. fig. 6). The 

 ossicles are more numerous in the upper part of the skin, 

 but, although scarcer, they are to be found as far as this 

 skin has been flayed off the leg. They are also smaller in 

 the inferior parts. 



No. 7 is the large horny sheath of a claw which is re- 

 produced in figs. 2, 3 and 4 seen from different sides. Its 

 total length from the distal tip to the superior proximal 

 margin is 109 mm. Of this the proximal edge of the upper 

 surface, to a breadth of two centimeters, more or less, has 

 been covered beneath the skin (»dorsaler Krallenwall), Boas). 1 

 Distally from this a superficial layer, the »glazing» (»Glasur», 

 Boas), 1 extends over the principal horny sheath to a breadth 

 of more than 2 cm. on the right half of the claw, but on the 

 left half it is more worn off and there its width is only 

 1 cm. or less than that (conf. figs. 3 and 4). The greatest 

 breadth of the horny sheath measures 34 mm. at the mark 

 where the skin has left the claw free. The length of the 

 lower surface, or the sole, is 61 mm. inclusive a 3 mm. broad 

 proximal margin which has been covered by the skin (»ven- 

 traler Krallenwall», Boas). 1 This ventral »Krallen wall» is 

 also continued distally by a 7 mm. broad »glazing» which is 

 in continuity with the »glazing» of the upper surface on the 

 right side. The greatest breadth of the sole at its posterior 

 end is 26 mm. The general shape of the claw is seen from 

 the figures. One side (the right) is nearly straight, the other 

 (the left) is slightly curved. It is rounded at the tip and 

 its distal edge is also rounded. The lower lateral margin is 

 on the right side curved a little towards the sole, especially 

 at the middle. At the tip this curved edge is worn off. On 

 the left side this curving is hardly conspicuous. The colour 

 of this claw is light chestnut brown, but yellowish towards 

 the tip, except for the worn surface of the same which is 

 half way t ranslucent and brownish. 



1 Boas: Zur Morphologie d. Wirbelthierkralle, Morph. Jahrb. Bd. 21. 



