18 



PLEISTOCENE MAMMALIA. 



gradually in height as the series is followed back. Those of the sixth and seventh 

 are slightly turned forward, and that of the seventh may be much longer than that 

 of the sixth. 



Measurements of Cervical Vertebrj.. 





Mounted skeleton 

 in Zool. Dept. of 

 Brit. Mus. (72Gw) 



Mounted skeleton 



#n Sedgwick 

 Mus , Cambridge. 



Set of mounted 

 vertebra 1 in Zool 

 Mus., Cambridge. 



29 7 

 1105 



15'5 



156 



161 



60 

 185 



15 65 

 100 



Atlas. 



2. Median dorso- ventral diameter 



3. Extreme width of condylar articular 



29 1 

 1075 



14-75 



35-3 

 158 



182 



Axis. 



1. Length from anterior end of odontoid 

 process to postero- ventral extremity 



13 15 



1455 



5'2 

 173 



167 

 106 



1475 



21-5 



95 

 1965 



17'75 

 133 



2. Height from base of centrum to top of 



3. Height from roof of neural canal to top 



of neural spine 



4. Diameter across transverse processes ... 



5. Diameter across articulating surfaces for 



6. Diameter across postzygapophyses 





3rd Cervical. 



4th Cervical. 



5th 



Cervical. 



6th Cervical. 



7th Cervical. 



CO ■— 



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 2 



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3 J 



3 - 



— 3 



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3 - 



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11 



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S = 



OJ 3 



3 



o c 



3 r ; 



5? 



C c 



s . 

 I & 



X 1*1 



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 j. 



a « . 









c <u © 









ttC 





o £ a> 













- - j. 





■a 



_,M 



3 ju 



_ 



1 o 



3_ 60 





_•* 



S35 



- 



•3 71 



3-5.3* 





1? u 



B-* 



































1. Widtli across trans- 



Pi ~ .-*, 



39V 



5 8 i 



CQ.OO 



S o 

 3 c . 



1 =S 





o £ 5 



X .3 "_ 



H4 ■ 



- -^ T 



£ - 3 



s?8 



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c — £ 



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X L 32 



3 X « 

 C 3 



- \ '-, 

 ~ US 



11 i 



-ffiS 



^ .Z <^ 



-3 ■: « 



S _ = 

 x .c c 

















verse piocesses ... 



22 - 2 



■1 1 ■ t 



236 



2175 



238 



231 



215 



23-6 



2125 



20 1 235 



20-8 



i9 75 



21 9 



202 



2. Width across post- 

































11 55 



111. 



120 



11-85 



1 17 



11" 15 



12 1 



12 4 



12-75 



13 14 



125 



13 1 



14-65 



120 



3. Height from roof of 

































neural canal to top 

































of neural spine 



52 



59 



5-8 



51 



655 



6 1 



6 1 



735 



8-0 



66 



92 



105 



8S5 



115 



L8-65 



4. Length of inferior 

































lamella of trans- 

































verse process 



69 



7-4 



99 



7-8 





9 15 



9-7 



8-8 



9-4 



12 05 



1215 



101 









Thoracic Vertebras (Text-fig. 4). — These number 14 or 15. The neural spines of 

 the anterior vertebras are long, though the length varies considerably in different 



