323 



elongated and incurved bill, some species of Harporhynchus, which 

 next follows, shows much resemblance to them. These latter birds 

 are clearly connected by Oreoscop tes with the typical Mock- thrushes 

 of the genus Mimus, in which group an accurate comparison of 

 specimens and a careful attention to geographical distribution are 

 requisite to enable the student to distinguish the numerous closely- 

 allied and similarly-clad species. 



Genus I. Catharus. 



Catharus, Bp. Consp. i. p. 278 (1850). 

 Malacocichla, Gould, P. Z. S. 1854, p. 285. 



a. Catharus. 



1. Catharus melpomene. 



Turdus melpomene, Cab. Mus. Hein. p. 5. — Catharus aurantiiros- 

 tris, Sclater, P. Z. S. 1856, p. 294 ; 1858, p. 97 ; Ibis, 1859, p. 6. 



Cinnamomeo-brunneus , uropygio, alis extus et cauda rufescentioribus : 

 subtus pallide cineraceus, gula et ventre medio crisoque dilutiori- 

 bus, albis : periophthaimiis, rostri basi et pedibus flavis. 

 Long, tota 7'0, alee 3*1, caudse 2*6, tarsi 1*25. 

 Hab. Southern Mexico, near Cordova (Salle') ; Orizaba (Bott.) ; 

 Guatemala (Skinner). 

 Mus. P. L. S. 



2. Catharus aurantiirostris. 



Turdus aurantiirostris, Hartl. Rev. Zool. 1850, p. 158; Contr. 

 Orn. 1851, pi. 72. — Catharus immaculatus, Bp. Consp. p. 278. 



Supra dilute olivaceus : subtus albidus ; pectore, hypochondriis col- 

 lique lateribus cinerascentibus : subcaudalibus albis : gula cine- 

 rascente paulum variegata: rostro, pedibus et periophthaimiis flavis. 



Hab. Venezuela. 



Mus. Lugd. 



I have not had an opportunity of comparing specimens of these 

 two nearly allied species ; but Dr. Hartlaub considers the present bird 

 as distinct. 



3. Catharus occidentalis, sp. nov. 



Cinnamomeo-brunneus, vertice saturatiore : subtus cineraceus, gula 

 albicante, cervice et pectore fusco subobsolete flammulatis : ventre 

 medio et crisso albis : rostro fusco-nigricante, hujus basi et pedi- 

 bus pallide corylinis. 



Long, tota 6*5, alse 3*5, caudee 2*9, tarsi 1*15. 



Hab. Western Mexico, Oaxaca, Totontepec (Boucard). 



Mus. P. L. S. 



M. Salle's recent collections from M. Boucard contain four ex- 

 amples of this Catharus. It seems clearly distinct from C. melpo- 

 mene of Eastern Mexico, in its rather larger size, shorter tarsi, and 



