ree oy BANGS — NEW SANTA MARTA BIRDS 87 
Onychorhynchus mexicanus mexicanus (Scl.). 
3readth of bill 
Sex at middle of 
No. andage Locality Wing Tail Tarsus Culmen! nostril 
2434 g ad. Buena Vista, V.C, Mex. 89.0 75.5 17.0 28.6 9.0 
BAG Oneal | GS AP SSO) Ghia AO 8.6 
8546 & ad. Bogaba, Chiriqui 88.0 73.0 17.0 28.2 9.0 
8548 ¢ ad. ue ub SSsOmn 7 310m al 720ON 2720 8.8 
8547 @ ad. ee a 79:0). 66:0" {1635 9 24-4) 8.0 
7225 § ad. Lomadel Leon, Panama 79.5 65.5 17.0 24.4 8.4 
Onychorhynchus mexicanus fraterculus Bangs. 
J 
Breadth of bill 
Sex at middle of 
No. andage Locality Wing Tail Tarsus Culmen nostril 
5250 d ad. Santa Marta Colombia 84.5 67. 16.5 26.0 9.0 
5249 & ad. ee a SHO Cos WG Dyce 9.2 
5248 @ ad. 6 oe He 715108 (O25) NOsO) 24rd! 8.2 
Microcerculus corrasus’ sp. nov. 
Microcerculus marginatus (Scl.), Allen, Bull. Amer. Mus. Nat. Hist., Vol. 
XIII, p. r80.—(One specimen from Onaca provisionally referred to this species 
by Allen.) 
Type, from Chirua, Sierra Nevada de Santa Marta, Colombia, 7000 feet 
altitude, 9 adult, no. 6070, coll. of E. A. and O. Bangs, collected March 13, 
1899, by W. W. Brown, Jr. 
When I recorded, as AZ. marginatus, the only specimen taken by 
Mr. Brown, it was done because I did not like to give the bird a 
name then without having seen a skin of true IZ. marginatus, not 
that I thought the Santa Marta scrub wren was really that species. 
Since then I have examined all the material I could and have 
studied plates and descriptions with great care, and I hesitate no 
longer in naming the Santa Marta form. - 
1 The culmen is measured from the base of the mandible, where it joins the skull, to the tip, as 
the ‘exposed culmen’ varies too much. 
2 Corrasus — procured with difficulty. 
