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PLEISTOCENE MAMMALIA. 



Text-fig. 1. — a. Right scapula of a common fox (Canis vulpes) seen from the outer side. b. Left scapula 

 of an Arctic fox (Canis lagopus) seen from the outer side. Both from Ightham (Lewis Abbott Coll.). 

 | natural size. 1, glenoid cavity; 2, spine; 3, acromion; 4, coracoid process. 



Text-fig. 2.— a. Pelvic girdle of an Arctic fox (Canis lagopus) seen from the left side. b. Pelvic girdle 

 of a common fox (Canis vulpes) seen from the left side. c. Pelvic girdle of a common fox (Canis 

 vulpes) seen from below, d. Pelvic girdle of an Arctic fox (Canis lagopus) seen from below. The 

 Arctic fox is from the Pleistocene of Ightham near Maidstone (Lewis Abbott Coll.), the common fox 

 from the Prehistoric alluvium of the Thames Valley, Walthamstow (Brit. Mus.). £ natural size. 

 1, acetabulum ; 2, obturator foramen ; 3, ischium ; 4, sacral surface of ilium ; 5, gluteal surface of 

 ilium ; 6, ischial tuberosity ; 7, pubis. 



