Greatest diameter at proximal end,...-.------.-------- has 
Greatest diameter of articular surface,_.--------------- 46 
Greatest diameter of distal end, la ay 
Greatest diameter of radius, at proximal end,_---.------- 33° 
Greatest diameter at distal end,.-......-.-.----------- 28° 
Transverse diameter of proximal carpal, .--------------- 5 
Antero-posterior diameter of proximal carpal, --- ---- ---- 28 
Greatest diameter of articular face of distal carpal, -- ---- 42 
Lenetn.of lateral’ carpal... 2.05. 5. .icie 1 eel eps 
Length (minimum) of metacarpal of wing-finger, - --- - - -- 412° 
Length of first phalanx of wing in Sia lc kd alae wtathigae 428 
Transverse diameter of proximal end,-_.-..------------- 53 
Chord of greater articular surface, _....--------------- 30 
Length of olecranoid process, Lo he bid cane ee 
Greatest diameter of distal end,.-.-------------------- 29° 
Greatest diameter of distal articular surface, ---- .--- ---- 35° 
meee rameter ee Se ae ee ’ 
Greatest diameter of second phalanx, at proximal end,.-- 35 
Greatest diameter of proximal articulation, - - .- - -------- 
Greatest diameter of distal articulation, ---- .----------- 20 
Least diameter, ume deg oh 
Greatest diameter of proximal articulation of third phalanx, 18° 
Least diameter, - UBe pe hk eee set . 
Greatest diameter of proximal articulation of fourth phalanx, 10° 
Letgth.of crownof toothijc: 2. aici edelosi ee tase 25° 
for the entire wing a length of at least eight and a half feet, 
and, for the full aa of both wings, a distance of eighteen 
the species belonged to the short-tailed or true Pterodactyls, as 
= the other groups this bone has been found to be invariably 
ess than one-half the length of the fore-arm. The large laniary 
teeth clearly indicate the carnivorous and predacious habits of 
as dou 
probably b 
other sia ilee 
All the known remains of this species were found in the 
eer Cretaceous strata, near the snbky River in Western 
nhsas. 
