MUE-ENOSAUEUS LEEDSl. 125 



Femur : length 25'8 



width of head 6-5 



greatest width at proximal end (with trochanter) . . 7"5 



least antero-posterior diameter of shaft 4"6 



width of distal end 12'9 



Pubis : greatest width 2-9 



„ length 2-4 



length of acetabular surface 7'5 



„ surface for ischium 3'5 



Ischium : greatest length from acetabulum to middle hne 



(approx.) 18-0 



length of acetabular surface (approx.) 4-5 



,, iliac surface (approx.) 2-o 



,, pubic surface (approx.) '3'5 



width at narrowest point o'l 



E. 2864 (Leeds Coll. 34). Imperfect skull and skeleton o£ an individual smaller than the type 

 specimen. The portions preserved are : — Basioccipital, basisphenoid with part of 

 parasphenoid, portions of exoccipitals, of frontals, and of premaxillse, vomer and part 

 of the pterygoid, quadrate ; greater part of mandible ; several detached teeth ; forty- 

 five cervical and pectoral vertebrse, twenty dorsal (and ? sacral) vertebrse and twenty 

 caudals with some caudal ribs and chevrons ; portions of the limb-girdles, the fore and 

 hind paddles. 



The fore and hind paddles (text-fig. G3) are the most nearly complete yet found, 

 practically all the bones on one side having been collected and retained in their natural 

 relative positions. The caudal vertebrae (text-fig. 59) are in excellent preservation, 

 many of them still retaining their union with the neural arches and caudal ribs and in 

 one case with the chevrons; of these last several are preserved separated from the centra 

 (text-fig. 59, F, a, H). 



The dimensions (ia centimetres) of this specimen are : — 



Skull : 



Basioccipital : transverse diameter of the occipital condyle . 2*2 



greatest length on middle line 3-2 



„ width at lateral processes .... 4-1 

 Mandible : 



Length from anterior end of symphysis to angle (approx.) 25'0 



,, of symphysis 3*4 



„ of postarticular region (approx.) 3'6 



YertebrjE : Cervicals* 



Length of centrmn 



Width of hinder end of centrum 

 Height of hinder end of centrum 



Atlas and 



Fifth 



Tenth 



Fifteenth 



axi3. 



cervical. 



cervical. 



cervical. 



4-5 



2-2 



3o 



3-9 



2-5 



3-1 



4-0 



4-4 



2-1 



2-5 



31 



3-4 



* The numbers of the vertebrse iu the series are approximate. Behind the fifteenth the cervical 

 vertebrie are too much distorted for measurements to be of any value ; the same is the case with the 

 dorsals. 



