182 SENIOCEBUS 



one species (M.) tamarin — Cercopithecus midas; the C. 

 URSULUS being regarded as the male of middle age, and Leon- 

 TOCEBUS FUScicoLLis being the young. The Genus QLdipus has 

 CEdipus titi = CEdipomidas cedipus; Cercopithecus bicolor 

 (Spix), being the immature animal. Under the genus Leon- 

 topithecus = Leontocebus, of the subgenus Marikina, the 

 following species and varieties are given: L. aurora = L. 

 ROSALIA; L. fuscus = L. leonina; L. ater = L. chrysopygus; 

 var. A. and var. B. L. chrysomelas. The method of arrange- 

 ment adopted by this Author is unsatisfactory and somewhat 

 confusing. 

 1840. Wagner, Schreber, die S'dugthiere in Abbildungen nach der 

 Natur mit Beschreibungen. Supplementband. 

 A similar arrangement with that of previous Authors is here 

 given, and species belonging to different genera are brought 

 together in the genus Hapale. (H.) jacchus; (H.) leuco- 

 cephala; (//.) aurita; (//.) melanura = (H.) argentata; 

 the last belonging to the genus Callithrix. The other 

 species are Cercopithecus midas ; Cercopithecus ursulus ; 

 Seniocebus bicolor ; Leontocebus labiata ; L. chrysomelas ; 

 L. chrysopygus; L. leonina, L. rosalia, and QEdipomidas 



CEDIPUS. 



1843. /. E. Gray, in Annals and Magazine of Natural History. 

 Leontocebus labiatus redescribed as Midas ruHventer. 



1845. Pucheran, in Revue et Magasin de Zoologie. 



Leontocebus illigeri first described as Midas illigeri; and 

 CEdipomidas geoffroyi first described as Hapale geoffroyi. 



1848. /. Geoffroy et Deville, in Comptes Rendus. 



Leontocebus pileatus first described as Midas pileatus; and 

 Leontocebus fuscicollis redescribed as Midas iiavifrons ; and 

 L. nigricollis redescribed as Midas rufoniger. 



1849. Deville, in Revue et Magasin de Zoologie. 

 Leontocebus weddelii described as Midas zveddelii. 



1850. /. Geoffroy Saint-Hilaire, in Comptes Rendus. 

 Leontocebus devillii first described as Hapale devillii. 



1851. /. Geoffroy Saint-Hilaire, Catalogue des Primates. 



A review of the Tamarins is here given and two described as 

 new, only one of which is valid. All are included in the genus 

 Midas. The species are (M.) rosalia; {M.) chrysomelas: 

 (M.) labiatus; (M.) pileatus; (A/.) mystax; (M.) devillii ; 

 (JW.) rufoniger = L. nigricollis (Spix) ; {M.) nigrifrons: 



