ICHTHYOSAURUS. 59 



preservation. The middle portion of the vertebral column 

 has been cut and polished in order to exhibit a vertical 

 section. There are six longitudinal rows of phalangeals 

 in the pectoral limb ; the anterior border of some of those 

 in the first row being notched. The pelvic paddle has the 

 usual notches on the anterior border. This specimen is 

 noticed on p. 374 of Mantell's c Petrifactions,' where it is 

 stated that the limbs were originally covered with car- 

 bonised integument. Mantell Collection. Purchased, 1838 . 



R. 1080. Slab showing the oblique dorsal and right lateral aspects 

 of the anterior portion of a skeleton provisionally referred to 

 this species ; probably from Street. The greater portion 

 of the skull and the eervico-dorsal vertebral .region are 

 well preserved, but the limbs are wanting. The skull 

 apparently agrees with that of the present species ; while 

 the shortness of the spines of the vertebrae distinguishes 

 the specimen from /. communis. No history. 



2024 *. Slab showing a considerable portion of the dorsal region of 

 {Fig.) the vertebral column, numerous ribs, the imperfect right 

 pelvic limb, and the left femur; from Street. The 

 vertebral column is broken up, and the arches are mostly 

 separated from the centra. The characteristic notch in 

 the anterior border of the tibiale is shown in the right 

 limb. Figured in Hawkins's ' Memoirs on Ichthyosauri 

 &c.' pi. xx. Hawkins Collection. 



R. 1067. Slab showing the dorsal aspect of part of the vertebral 

 column and pectoral girdle and limbs in a somewhat 

 disturbed condition ; from Street. The paddles present all 

 the characteristic features of the present species. 



(?) Hawkins Collection. 



R. 288. Slab exhibiting the ventral aspect of the pectoral girdle 

 and limbs of a medium-sized individual ; probably from 

 Street. All the bones of the pectoral girdle are perfect, 

 and but slightly displaced. The limbs have been bent 

 over towards the anterior aspect, and their terminal 

 phalangeals are displaced. The paddles are narrow, and 

 have five longitudinal rows. 



Ecjerton Collection. Purchased, 1882. 



R. 1070. Slab exhibiting the ventral aspect of the pectoral girdle 

 and limbs, together with a number of detached teeth, 

 bones of the pelvic girdle, and other parts of the skeleton ; 



