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PRIMROSE : THE ANATOMY OF THE ORANG OUTANG 
Fig. 7. — Dissection of the interossei muscles of the hand in the Orang Outang, viewed 
from the dorsal aspect. 
v.i. I, v.i. 2, v.i. 3, palmar interossei, d.i. i, d.i. 2, d.i. 3, d.i. 4, dorsal interossei.- 
PLATE VI. 
Fig 8. — Dissection of the gluteal region, and the back and outer side of thigh in the 
Orang Outang. 
g.max., gluteus maximus ; g.med., gluteus medius ; g,min.^ gluteus minimus; 
g.s.n., great sciatic nerve ; g.trock., great trochanter of the femur; h.m.y 
hamstring muscles; ib., iliac bone; 2'/., iliacus ; zV. , ischial spine; oh.e,^ 
obturator externus ; ob.i.^ obturator internus ; py.r.^ pyriformis ; q.f., quad- 
ratus femoris ; rect.^ rectus femoris ; scan., scansorius ; vi vastus 
externus. 
