CAMBRIDGE UPPER GREENSAND. 
65 
Case. Shelf. No. 
X f 15—28 the wing-like trochanteroid processes per¬ 
sist down the whole length of the shaft; 
the posterior process is the most elongated. 
The species may be named Ichthyosaurus 
W alkeri. 
x g 
1—7 
Coracoid, g 1 left, and g 2 right. 
As preserved these are sub-quadrate bones, 
very thick at the mesial suture; more than 
half as thick at the glenoid cavity, and 
much compressed in the middle and at 
the anterior and posterior borders; they 
are imperfect, but do not appear ever to 
have had so much of the Dinosaurian 
form as Lias specimens, g . 7 is reputed 
associated with f. 16 and a. 20. 
9 
8—10 
[undetermined] ? pro-otic. 
9 
11—16 
1 articular bone. 
9 
17—28 
? epiotic. 
X h 1—45 Phalange bones with ulna and radius all from 
one specimen. They are chiefly brick¬ 
shaped. Those from the margin have 
their free edge compressed and rounded. 
And the thin bones from the distal ex¬ 
tremity are losing their quadrate form. 
X i 
i 
i 
1—8 Phalange bones united during the lifetime of 
the animal, end to end, forming transverse 
rows in the paddle. 
9—14 portions of the paddle of one Ichthyosaurus 
in which all the bones are united by in¬ 
tervening osseous tissue into a solid sheet 
of bones. 
15—18 the larger bones of the fore-arm of Ichthyo¬ 
saurus. 
5 
