42 
Plate III 
(Natural size) 
Yakounoceras gitinsi McLearn. (Page 8.) 
Figure 1. Suture line of holotype. National Museum of Canada, Cat. No. 9002. 
Seymourites multus n. sp. (Page 7.) 
Figure 2. Side view of holotype. National Museum of Canada, Cat. No. 9001. 
