1914] The Ottawa Naturalist. 17 



Tibia, length 3 3 



Metatarsal, I, length 4^ 



II, " 1 9^ 



III, " 2 Oi 



IV, " 1 10 



V, " H 



Digit I of pes, length 8 



" II " " 1 4f 



" III " " 1 8 



IV " " 1 ^ 



1st Dorsal vertebra, length of centrum of ■ 3^ 



3rd " " " " 4 



2nd Rib, length 3 9 



Posterior sacral vertebra, length of centrum of.. . . 6^ 



1st Caudal vertebra, length of centrum of 6 



height of anterior end of 



^t)-" 



centrum of 7^ 



5th Caudal vertebra, length of centrum of 6 



" " " height of centrum of, ^ 



neural spine 11^ 



" " " length of chevron bone of . . . 8 



12th " "' length of centrum of 5f 



" " " height of anterior end of 



centrum of 3^ 



22nd " " length of centrum of 4f 



" " height of anterior end of 



centrum of 1|- 



'-' " " fore and aft length of foot of 



chevron bone of 4 



5th Abdominal rib, length of lateral half of 2 1} 



Outer supplementary of same, length of 9f 



Stephanosaurus, gen. nov. 



This genus is established for the reception of the species 

 from the Belly River formation of Alberta, originally described, 

 under the name of Trachodon marginatus, by the writer in 1902* 

 from a ramus of a lower jaw and a maxilla, and from the remains 

 of one individual. With the species were provisionally associated 

 other elements, notably a slender footed-ischium, which associa- 

 tions have since been proved to be correct by further material 

 included in the collection of 1913 from the Belly River formation 

 of Red Deer river. These additional remains, discovered by 



''Contributions to Canadian Palseontology, Vol. Ill (quarto), pt. II. 



