APPENDS. 
Arr. XX1.—The Limbs of Sauranodon, with Notice of a 
new Species; by O. C. MARSH. 
are very similar to those in that sels 
auranodon presents some fea- 
These represent the carpals. There are six metacarpals, and 
also six well developed digits, each composed of numerous 
phalanges, which are all free, and nearly circular in form. 
In the posterior limb, the structure is essentially the same. 
The distal end of the femur has three distinct facets, and of 
these the middle one is the largest. Next below the femur, 
and articulating with it, are three bones which apparently rep- 
resent the tibia, intermedi and fibula, although the first 
alone can be determined from its shape and position. The 
next row contains four rounded bones; and the succeeding one, 
* This Journal, vol. xvii, p. 85, Jan., 1879. 
Au. Jour. Sot.—Tuirp Series, Von. XIX.—No. 110, Fes., 1880. 
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