Ixxxiv INTRODUCTION 



117. Leontocebus nigrifrons. River Javari on border of Brazil and 



Peru ; and on Cotopaza River, Ecuador. 



118. Leontocebus nigricollis. Upper Amazon; Pebas, Ecuador. 



119. Leontocebus chrysopygus. Vicinity of Ypanema, Sao Paulo, 



Brazil. 



120. Leontocebus mystax. Forests between the Solimoens and Iga 



Rivers, Brazil. 



121. Leontocebus wedelli. Apolamba Province, Bolivia. 



122. Leontocebus devillii. Eastern Peru. 



123. Leontocebus apiculatus. Banks of Cotopaza River, Ecuador. 



124. Leontocebus illigeri. Colombia, and banks of the Cotopaza 



River, Ecuador. 



125. Leontocebus tripartitus. Bank of the Rio Napo, Ecuador. 



126. Leontocebus lagonotus. Upper Amazon. 



127. Leontocebus fuscicollis. Between the Iga and Solimoens 



Rivers in Brazil, and the vicinity of Pebas, Peruvian Ama- 

 zons ; and the banks of the Javari River, boundary between 

 Brazil and Peru. 



128. Leontocebus graellsi. Banks of the Rio Napo, Ecuador. 



129. Leontocebus imperator. Banks of the Rio Purrus, tributary 



of the Amazon, western Brazil. 



130. Leontocebus rosalia. Forests of southern Brazil, Province of 



Rio de Janeiro. Upper Amazon. 



131. Leontocebus leoninus. Popayan, Brazil. 



132. Leontocebus chrysomelas. Forests of the Rio Ilheos, and 



Rio Pardo, Brazil. 



CEdipomidas. 



Range of the Genus. 



Neotropical Region. 



Range of the Species. 



133. CEdipomidas gedipus. Coast of Colombia. 



134. CEdipomidas geoffroyi. Costa Rica and Panama, Central 



America. 



135. CEdipomidas salaquiensis. Forest of the Salaqui River, 



Colombia. 



