5. CATHAEUS. 291 



t^H'^^i'' ^^^'^^' '^^' '■' '^ '•'' -^-- 0-71 to 0-05, 

 The fcnmle scarcely differs from the male. Birds of the vear nnrl 



yomuj ^n first phnnaye appear to be unknown. ^ ^ ^^ 



Ihe Greater Costa-llican Thrush-Kobin has only been obtainerl 



beTrSnt ^'^ '^^'^""' '^^-^^^'^ ""^ ^^^^^ ^^^' wLeTistrto 



a. Ad. sk. Costa Rica. H. Seebohm, Esq. [P.]. 



10. Catharus alticola. 



Catharus frautzii, Cah. upvd Sulvin, Ihi. 1S06, p 190 



p. a'cTs?^!'"^"' *'"'"■ ^' ^'"^"'- ^'■''- C'«'^'-.-^,«er: Zoo/., ^e..s, i. 



pis form differs from the preceding in having the head a naler 

 rusty brown, and the rest of the upper parts inclining to olive b^own 

 instead of russet-brown, the difference being most strongly maSd 

 on the upper tail-coverts. The colours of" the soft parfs atd the 

 wing-formula are the same. Length of wino- S-4=i inZW-A. 

 tail 3-0 to 2-G, eulmen 0-7 to 0-64,1™ S to iV ^ '' "''"' 



The sexes are said to be alike. Birds of the year and younr, in 

 first jjlumcif/e are VLnknov,n. ^ younc/ m 



tbe^b!lbr''lT'^'l' Tlu'ush-Eobin is confined, so far as is known, to 



The British Museum does not possess an example of this species • 

 Godmt" "" " ''' ""^^'""^ "^' ^^- ^^^^*- -d Me-rs. .Salvm and 



11. Catharus occidentalis. 



Catliarus occidentalis, Sdafcr, P. Z. S. 18.59 nn S9q qrn • D ■ j 

 p. o4J(lhG9); Lour. Bidl. U. S. Kat. Mm no 4 n n n«^m 

 B<ol. Centr.-An>er.ZooL,Aves,i.r,.4(m9) ^' ^ ^"'^"'■ 



(1809)?'"*^""*"^'' **'^"'"''' ^''""^' ^^^'"^^-'- ^- '■ P- 250. no. 3776 



This species differs from the two preceding subspecific forms fn 

 T^-hich It IS very closely allied, in the following particuh rs --S th« 



^rLf f\^''^ '' '' ""^"•^^' clistinguislSble frorn" ' aW J«' 

 the lest of the upper parts have, however, no trace of S' 

 brown, as in that species, but, on the contrary are as 7Zt 

 brown as the head and very slightlv paler in fnrT r.ni ^ 

 more rusty than in C. fraJii ; t\e ^^1% Lr f tCndTr' 

 pans IS a shgh ly paler slate-grey than in either of the sub' 

 specific forms above mentioned, and the throat and cheeks are" 

 uflu.«ed with brown, as well as the breast and flanks • the obscure 

 traces of spots on the lower throat and uj.per breast are aKo TJZ^ 

 more developed and extend also to the tUs. M^da^ few^ 



v2 



