6 PLEISTOCENE MAMMALIA. 



roin|)osc{l of associated I)oiies. Tlicso, which are here referred to ns skeletons A and B, 

 liave furnished the great majority of the bones fignreci, and may be brietly describech 



Skeleton A. — This includes the cranium (PI. I, and PI. II, fig. 1), of wliieii the 

 occipital region, sagittal crest, ])aiatal plate, dentition of left side, and a considerable 

 portion of the left zygomatic arch are well preserved, 'l^he mandible is missing. The 

 vertebral column is nearly conn)lete, lacking oidy the caudal vertebrae. The left scapula 

 is fragmentary, but the rigiit one is fairly well preserved, having the coracoid and glenoid 

 borders unfortunately much broken. The right anterior limb is in a remarkably perfect 

 state except for the loss of some of the small bones of the nianus ; but the left limb lacks 

 the distal end of the ulna and the proximal end of the radius. The ribs and the sternum 

 are wauling. Both ossa innominata are in a fairly perfect state (PI. XII). The right 

 posterior limb is comi)lete except for the loss of some of the small bones of the pes ; but 

 the left fibula is wanting. 



SMdon i^.— The skull (PI. II, fig. 2) is nearly perfect, the mandible (PI. Ill, 

 figs. 2, 3) being associated with the cranium. The chief parts lacking are the zygo- 

 matic arches, and the incisors and canines of the upper jaw. The posterior end of the 

 sagittal crest is damaged. The mandible lacks nearly all the incisor teeth, and has the 

 left condylar region in a fragmentary state. The vertebral column lacks the first thoracic 

 and the first and second lumbar, as well as the caudal vertebrae, but is otherwise in good 

 condition. The left os innominatum is nearly complete, but the other parts of both limb 

 girdles are in a fragmentary state. All the long bones of both anterior and posterior 

 limbs are well j)reserved, except the left fennu-. The left fibula shows a growth of bone 

 (exostosis) such as one generally meets with in menagerie skeletons. 



The other bones and teeth figured are from the Creswell Caves, Derbyshire, the Tor 

 Bryan Caves, Torcpiay, and Kirkdale Cave, Yoikshire. All measurements are given in 

 centimetres. 



In the preparation of this monograph I have i-eceived much kind hel[) from Professor 

 Boyd Dawkins, Mr. Sherborn, and Dr. Smith AVoodward, and to them my best thaidcs 

 are tendered. I am also greatly indel)ted to Mr. II. St. G. Gray, to Mi'. lioyle, and to 

 Professor Sollas for facilities in the examination and figuring of specimens preserved in 

 the Taunton Castle, Owens College, and Oxford University Museums ; and finally to Mr. 

 J. Green for the great amount of care and trouble he has take n in drawing eight of the 

 plates. 



III. DliSCUIPTION OP THE REMAINS. 



A. Tnic Skull (Phites 1,11, 111). 



(1) Disdnclioc Fcalnras of Ike Skull in I he Geiiii^ Ifi/rena. — There arc many note- 

 worthy featuies in which the skull of llijcena contrasts markedly with that of Fells and 



