38 
PLESIOSA URIA FROM THE 
PLESIOSATJRIA 
FROM THE CAMBRIDGE GREENSAND. 
Exhibited in the upright Cabinets which face Cabinet J. 
CABINET LXXXIX. 
Humerus and Femur. 
Case. Shelf. No. 
89 b 1 
2—6 
c 2—6 
An elongated narrow femoral bone with 
trochanter developed, very thin at dis¬ 
tal end j apparently worn and broken: 
anterior side nearly straight; posterior 
outline slightly concave. 
Various examples of humerus and femur 
of the short, broad, massive type, some¬ 
what Pliosauroid in form, which never 
developes smooth articular surfaces 
or a trochanter, the ends apparently 
remaining cartilaginous. 
Other examples of these massive limb-bones, 
apparently indicating with those on 
shelf b two or three species. The cir¬ 
cular pits at the proximal and distal 
ends should be noticed; as also the 
large perforations at the middle of the 
concave posterior border for the nutri¬ 
tive artery and vein of the bone. 
