Osteological Symmetry oj the Camel. 



553 



Dimensions of the SACRUM in the Bactrian Camel. 



Rostro-caudal Dimensions (Length) in the Mesial Plane. 



Actual Measurements. 



70 



Distance in the mesial plane from the rostral 

 margin of the sternal surface of the sacrum. 

 To the caudal margin of the same surface 



Distance in the mesial plane from the rostral 

 margin of the root of the spinous process 

 of the rostral (1st) of four vertebrje that 

 compose the sacrum, To the caudal mar- 

 gin of the root of the caudal (4th) of these 

 four vertebrae, being over the nerval canal 



Distance in the mesial plane from the rostro- 

 dorsal extremity of the spinous process of 

 the rostral (1st) of four vertebrae that com- 

 pose the sacrum, To the caudo-<lorsal ex- 

 tremity of the caudal (4th) of these four 

 vertebrae 7-02 



6-55 



V. 



Distance in the 

 margin of the 

 To the caudo 

 nous process 

 vertebrae that 



Distance in the 

 margin of the 

 To the rostro- 

 nous process 

 vertebrae that 



mesial plane from the rostral 

 sternal surface of the sacrum, 

 -dorsal extremity of the spi- 

 of the caudal (4th) of four 

 compose the bone . . 

 mesial plane from the caudal 

 sternal surface of the sacrum, 

 dorsal extremity of the spi- 

 of the rostral (1st) of four 

 compose the bone . . . 



III. 



7-18 



VII. 



7-58 



Supposed 

 Normal 

 Dimen- 



6-75 



6-50 



7 '00 



7-25 



7-50 



Dimen- 

 sions in 

 Propor- 

 tional 

 Parts. 



27 



26 



28 



29 



30 



DifF. 



Sterno-dorsal Dimensions (Height) in the Mesial Plane. 



Actual Measurements. 



Distance in the mesial plane from the rostral 

 margin of the sternal surface of the sacrum, 

 To the summit of the corresponding spi- 

 nous process of the rostral (ist) of four 

 vertebra; that compose the bone . . . 



Distance in the mesial plane from the sum- 

 mit of the rostral (1st) of four vertebrae that IV. 

 compose the sacrum, To the nearest point 

 on the sternal surface of the bone . . 



Similar dimension from the spinous summit 

 of the 2nd vertebra of the sacrum . . 



Similar dimension from the spinous summit 

 of the 3rd vertebra of the sacrum . . . 



Similar dimension from the spinous summit 

 of the caudal (4th) vertebra of the sacrum 



IV. 



4-45 



3-94 



3-13 



2-34 



1-96 



Distance in the mesial plane from the caudal 

 margin of the sternal surface of the sacrum, 

 To the summit of the corresponding spi- 

 nous process of the caudal (4th) of four 

 vertebrte that compose the bone . . . 



Distance in the mesial plane from the caudal 

 margin of the sternal surface of the sacrum, VIII. 

 To the caudal margin of the floor of the 

 nerval canal "71 



VIII. 



1-50 



Supposed 

 Normal 

 Dimen- 



4-50 



4'00 

 3-25 

 2-25 

 2-00 



1-50 



•75 



Dimen- 

 sions in 

 Propor- 

 tional 

 Parts. 



18 



16 

 13 



9 

 8 



Diff. 



On the Sternal Aspect. 



Distance between the lateral terminations of yir 

 the rostral margin of the sternal surface 

 of the sacrum 8"50 



On the sternal surface of the sacrum. Dis- 

 tance between the mesial margins of the „-.. 

 foramina intervening to the rostral (1st) 

 and the 2nd of the vertebras that compose 

 the bone r84 



Similar dimension between the sternal fora- 

 mina intervening to the 2nd and the 3rd 

 vertebrae of the sacrum 1'64 



Similar dimension between the sternal fora- 

 mina intervening to the 3rd and the caudal 

 (4th) vertebrae of the sacrum .... 1 '49 



Distance between the lateral extremities of „„ 

 the caudal margin of the sternal surface 

 of the sacrum 3'26 



Transverse Dimensions (Breadth). 



On the Dorsal Aspect. 



' 



8-50 



1-75 

 1-50 

 3-25 



34 



6 



13 



27 



On the dorsal surface of the sacrum. Di- 

 stance between the mesial margins of the yyv 

 foramina intervening to theVostral (1st) 

 and the 2nd of four vertebrae that compose 

 the bone • 2-58 



Similar dimension between the dorsal fora- 

 mina intervening to the 2nd and the 3rd 

 vertebra; of the sacrum 2*37 



Similar dimension between the dorsal fora- 

 mina intervening to the 3rd and the caudal 

 (4th) vertebrae of the sacrum . . . . 1'62 



2-50 



1-75 



lO 



