(254) 



plumage, agrees in all essential particulars with G. affinis, of which Count 

 Berlepsch most obligingly sent me a skin collected by Rockstroh in Guatemala. 

 The under parts are uniform buff, paling into whitish on chin and upper throat ; 

 the lower tail-coverts blackish brown with lighter brown tips (not bull as in 

 G. californianus) ; the sides of the foreneck and chest only are marked with broad, 

 black shaft-stripes. Above, the crown and nape are black, with white apical spots ; 

 the back, instead of being pale bronze greenish, as in G. calif or nianus, is bright 

 rufescent-brown ; also the upper wing-coverts and inner secondaries (tertials) are 

 metallic brown with coppery reflections, not greenish bronze. 



The naked space behind the eye, supposed to be lacking in the type specimen, 

 is developed to the same degree as in other examples, but the taxidermist (who 

 probably took it for a deficiency) had very cleverly covered it with small feathers 

 which, however, can be easily removed. 



There is, of course, the possibility that larger series may show the Guatemalan 

 birds to be subspecifically separable from the typical Mexican form. The point 

 I wish to emphasize is that Cuculus velox belongs to the gror.D of Geococcyx 

 affiniS) and has no relation whatever to G. californianus (Less.). 



70. Ramphastos citreopygns Gould is an artefact ! 



Ramphastos citreopygus Gould, Monogr. Ramph. (1st ed.) pi. iv (1834." believed . . . from Peru " ; 

 Coll. Swainson). 



No. 1. University Museum, Cambridge (England), labelled: "E. Mus. Acad. 

 Cantabrigiae Swainson Collection, Type of R. citreopygus Gould, Monogr. ed. 1." 

 Wing 215 ; tail 136 ; bill 156 mm. 



R. citreopygus has been completely lost sight of ever since it was described 

 by Gould in 1834, being not even mentioned either in the second edition of 

 Gould's Monograph or in the Catalogue of Birds. The type specimen, kindly 

 forwarded to me for inspection by Dr. Gadow, turns out to be an artefact : the body 

 is taken from R. mtellinus Licht., to which is very cleverly attached the head of 

 R. monilis P. L. S. Mull. (= erythrorhynchus Gm.). It is only fair to state that 

 Dr. Gadow had already arrived at the same conclusion. 



The bill of the substituted head-portion agrees in colour and shape with 

 R. vitellinus, of which a large series from the Guianas and Trinidad has been 

 examined, while the body does not present any difference from the well-known 

 R. monilis. 



Consequently R. citreopygus is to be eliminated from the list of existing 

 species. 



71. Aulacorhynchus * wagleri (Sturm) a nomenclatorial Note. 



In 1835 J. Gould described and figured a Mexican species of Toucan from 

 a single example in the Munich Museum under the name Pteroglossus pavoninus. f 

 The same specimen was made the type of a new species, Pteroglossus wagleri \ 

 by Sturm, six years afterwards. The purpose of this note is to show that the 

 correct specific name of the species in question is that given by Sturm. 



* This term was generally supplanted by the later Aulacorliamplms Gray on the insufficient 

 ground of having been previously employed in botany. 

 t Monogr. Ramph., Part iii, 1835. 

 % Monogr. Rhamphastiden, 2. Heft, 1841, tab. [6], 



