PLATE XL 
Fig. Page 
1. Hypsocormus leedsi , A. 8. Woodward ; rostrum, inferior 
and (1 a) lateral aspects.—Oxford Clay ; Peterborough. 
v. Vomerine tooth. [P. 6913.] 395 
2. Hypsocormus tenuirostris , A. 8. Woodward ; rostrum, in¬ 
ferior and (2 a) lateral aspects.—Ibid. v.a. Extension 
of vomerine area. [P. 6916.] 396 
3. Ditto; premaxilla (pmx.) and maxilla ( mx .) of same 
specimen, oral and (3 a) outer aspect, p. Anterior 
process of maxilla, s.mx. Facette for supramaxilla. 
[P. 6916.] 397 
4. Ditto; portion of dentary of same specimen, oral aspect. 
[P. 6916.] 397 
5. Ditto; remains of jaws and inferior portion of skull, right 
lateral aspect, with anterior end of splenial and dentary 
(5 a) viewed from oral aspect.—Ibid. d. Dentary. 
mx. Maxilla, pmx. Premaxilla, pt. Pterygoid, s.mx. 
Supramaxilla. spl. Splenial. [P. 6917.] 397 
6. Ditto ; left pectoral fin of same specimen, outer aspect 
and (6 a) view of proximal end. /. Articular facette. 
[P. 6917.] 39S 
