MUSCULAR SYSTEM OF THE RED HOWLING MONKEY 157 



Figure 48. — Plantar view of the foot (1, m. abductor hallucis; 2, m. flexor hallucis, caput 

 tibiale; 3, m. opponens hallucis; 4, m. flexor hallucis, caput fibularis; 5, m. adductor 

 hallucis (contrahens I); 6, m. contrahens II; 7, m. contrahens IV; 8, m. contrahens V; 

 9, m. flexor digiti quinti; 10, tendon of m. abductor digiti quinti (= abductor digiti minimi 

 of N.A.); 11, tendon of m. peroneus longus; 12, tendon of m. peroneus brcvis; 13, lig. 

 plantare longum; 14, tendon of m. tibialis posterior). 



