152 FIELD CoLUMBIAN MusEuM—GEOLOGY, VoL. II. 
/ 
rudimentary, subtriangular in shape, with the obtusely pointed distal part 
curved, altogether resembling an obtuse claw. The first toe has a single 
phalange, which is long, cylindrical, gently curved, and obtusely pointed. 
The second toe has two phalanges, the first of which is elongate and 
grooved with a distal trochlear articulation. The second phalange 
resembles the first of the first toe, but is shorter. The third toe has four 
phalanges, the proximal one of which is like that of the second toe, but 
is elongate; the second is broader than long; the third is like the first, but 
is shorter; the fourth is a short, scarcely curved and obtusely pointed claw. 
The fourth toe has five phalanges, of which the first, fourth, and fifth 
resemble the first, third, and fourth of the third toe, the second and third 
the second of the same toe. This toe is the longest. ‘The fifth has no 
phalanges. I may add that the foot from which these measurements were 
taken was found together, with the bones in place or but little displaced, 
and has been so mounted in the University of Kansas Museum. I have 
Tepeatedly examined these bones, and am confident that the number of 
phalanges are as I have given them; that is, there is an absence of the 
claws on the first and second toes. The measurements of this specimen 
are as follows : 
mm 
Pemur, leng thts. 2222.6 aoe gals ree ae> ead S.ck +> 260 
Diameter, OLnend 1. esee ee ae LE inte cacinte Ss ee mie ee ot 20 
Width of condyles -2_ =... 2. 2223. 22-42. sae ee ee 30 
Tibia, length: 3.2... -tb ies. 28 2 ee 362 
Metatarsals, length_--<- --.-.--- <4. 2-2) 3.2 eee ol eee ee 
Phalange, first digit, length-..s.--.-. 2.--. 22 a 2 41 
Phalanyes, second digit, length 222. .s- 2020 5 Shr 
Phalanges, third digit, length = ia. orcs 2220. 2t 35, A 2eee 
Phalanges; fourth: digit, length-223- 4... 4 oe ee 40, 358 920.02 
Ossified tendons. Numerous thin, flat, striated bones are lying on 
the matrix associated with the anterior extremity, which can only be 
regarded as tendinous ossifications. One of these on each side is lying 
by the side or upon the pteroid bone, with its pointed extremity near 
its proximal end. They measure one hundred to one hundred and twenty 
millimeters in length, with a greatest breadth of twelve millimeters. Two 
others are lying by the side of the proximal end of the right wing 
metacarpal; they are somewhat shorter and have the flattened fimbri- 
ated end distad. Another is lying by the side of the distal end of the 
same bone. There is a shorter, more fan-shaped one by the right humerus, 
and fragments of others are scattered about the arms. Altogether there 
are seven of these of about one hundred millimeters in length. Their 
texture is striate, as though composed of slender, ossified, tendinous fibers, 
