33 CERVICAL VERTEBRAL. [CHAP. 



developed inferior lamellae (see Fig. 7, p. 27, /') especially 

 large in the fifth and sixth. In the latter the lower edge of 

 this lamella is frequently hollowed in the middle, and pro- 

 duced at each extremity, so that the transverse process has 

 a trifid appearance. This is especially marked in the Felida. 

 The transverse process of the seventh vertebra has no inferior 

 lamella, and its base is imperforate. 



Metapophyses are generally more or less developed on the 

 cervical vertebrae of the Carnivora, and there are also in 

 some genera small backward projecting tubercles (Jiyperapo- 

 physes y Mivart) situated on the laminae of the arch, rather 



FIG. 12. Side view of axis of Dog, jj. s spinous process; o odontoid process ; 

 pz posterior zygapophysis ; / transverse process ; v vertebrarterial canal. 



internal to the posterior zygapophyses, not usually found in 

 other vertebra;. 



In the INSECTIVORA the cervical vertebras vary consider- 

 ably in their characters. The atlas has usually short trans- 

 verse processes. Generally the spinous process of the axis is 

 large and prominent, and that of the other vertebrae very 

 small, but in Centetes and Pofanwgale they are all more or less 

 elongated. The neural arches in some (as Myogale and 

 Sorex) are reduced to mere filaments. In the mole (Talpa} 

 the transverse processes of the fourth, fifth, and sixth 

 vertebra; are much expanded antero-posteriorly, and overlap 



