THE SKELETON 



75 



aspect is the auricular surface for articulation with the sacrum. 

 The cranial rounded angle of the crest is the anterior superior 

 spine. The anterior inferior spine is the small prominence 

 craniad from the ventral termination of the auricular surface. 



The ischium presents a spine on its dorsal border near the 

 acetabulum. Between this spine and the posterior inferior 



Fig. 39. VeNTRO-L ATER AL 



Aspect of Left Coxal Bone of 

 A Kitten. 



ct, Cotyloid bone; ac, acetabu- 

 lum; il, ilio-pectineal eminence; 

 as, anterior inferior spine. (Mod- 

 ified after Jayne.) 



Fig. 40. — Ventral Aspect of the 

 Coxal Bones. 

 ac. Acetabulum; ai, posterior inferior 

 spine; ar, auricular surface; cr, crest; 

 et, cotyloid notch; ip, iliopectineal emi- 

 nence; is, body of ischium; ob, obturator 

 foramen; pb, body of pubis; s, spine; 

 sm, symphysis pubis; sp, spine of pubis; 

 sr, surface of ilium for attachment of 

 spinal muscles; tb, tuberosity of the 

 ischium. 



spine of the ilium, is a shallow concavity termed the greater 

 sciatic notch in distinction to the lesser sciatic notch between 

 the spine of the ischium and the tuberosity. The acetabulum 

 or cotyloid cavity forms the cup for the articulation of the femur. 

 The interruption in its ventral border is the cotyloid notch, 

 at whose base there is a depression for the attachment of the 



