APPEND. 
Art. XX XII1.—WNotice of New Dinosaurian Reptiles ; 
by Professor O. C. MARSH. 
IN addition to the Jurassic reptiles already described by the 
writer,* several others of interest are now represented in the 
Yale Museum. Among these are a number of Dinosaurs of 
gigantic size, and others of diminutive proportions. Nearly all 
are from the Atlantosaurus beds of the Rocky Mountains. Most 
tinct third trochanter. The proximal end and upper half of 
the shaft are compressed transversely. he inner condyle of 
the distal end is proportionally large, and on the outer one, 
62 This femur is over eight feet 
(98 inches, or 2,500™") in length. The transverse diameter 
ave the same pro- 
and fifteen feet! 
* This Journal, xiv, pp. 87, 254, 513, 514, 
Am. Jour. Sct.—THIRrD geet Vou. XV, No. 87.—Maroxu, 1878. 
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