CEBUS 75 



C. CAPUCiNus (Linn.). The point here made is not tenable, 

 for in the diagnosis of C. capucinus given in the Mus. Adolph. 

 Fred., Linnaeus describes the species as "Simia imberbis nigra, 

 Cauda longa hirsuta, facie flavescente," and in the fuller descrip- 

 tion given afterwards "corpus magnitudine cati, atrum pileo 

 laxo longiusculo; at Facies et maxima pars capitis, excepto 

 pileo nigro, pallide flava est una cum pectore ad flexuram usque 

 cubitorum," which is perfectly applicable to 6". hypoleucus 

 Humboldt, but in no wise answers to the capucinus Auctores. 

 The first definition the Dictionary gives of ater is "black," 

 followed by "coal-black," which sufficiently shows that Linnaeus 

 used the words as expressing the same meaning, and niger and 

 ater in this case are synonymous. In copying the diagnosis of 

 CAPUCINUS into the Systema Naturae of 1758 and also of 1766, 

 by an oversight it is made to read "S. caudata imberbis," the 

 nigra having been omitted, but as the only work cited as a 

 reference is Linnaeus' Mus. Ad. Fred., the omission is of little 

 consequence. Schlegel's objection therefore becomes of small 

 importance and capucinus Linn., must be accepted for the C. 

 hypoleucus (Humb.), a name the species has borne erroneously 

 for a century. The list of species commences with C. hypo- 

 leucus (Humb.), (although E. Geoffroy is given as its author), 

 = C. CAPUCINUS (Linn.) ; C. capucinus E. Geoffroy, — C. 

 APELLA (Linn.) ; C. albifrons (Humboldt) ; C. barbatus = 

 C. FLAVUS E. Geoff.; C. apella (Linn.), ex Surinam is con- 

 sidered distinct from the one he calls C. capucinus from the 

 Guianas = possibly C. castaneus I. Geoff. There seems to be 

 no valid reason for separating examples of C. apella (Linn.), 

 from different localities in its range. It is very variable in 

 coloration and all the individuals can only be regarded as 

 representing one species with a considerable dispersion. C. 

 LiBiDiNosus Spix; C. niger E. Geoff., = C. cirrifer (Humb.), 

 (synon. Part.) ; C. flavus E. Geoff.; C. frontatus Kuhl ; C. 

 FATUELLUS (Linn.) ; C. variegatus E. Geoff.; and C. fallax, 

 founded on a skeletal defect, — C. apella (Linn.). 



1879. Alston, Biologia C entrali- Americana. Mammalia. 



One species only of Cebus is here given, C. hypoleucus 

 (Humb.), = C. capucinus (Linn.), with an account of its 

 habits. 



1901. O. Thomas, in Annals and Magazine of Natural History. 



C. FATUELLUS (Linn.), juv. probably, redescribed as C. fatuellus 



