214 



30. Spiza versicolor, Bp. P. Z. S. 1837, p. 20. 

 Specimens of this bird were obtained by Lieut. Couch in the State 



of New Leon, wbich are now in the Museum of the Philadelphian 

 Academy, — so it appears to be distributed all through Mexico. 



31. Ammodromus ? 



M. Botteri has transmitted a single example — not in very good 

 order — of a bird apparently belonging to this genus, vvhich is probably 

 undescribed. It somewhat resembles Ammodromvs rujiceps, figured 

 by Mr. Cassin in bis ' Birds of California/ but is more cinereous in 

 plumage. I wait for additional specimens before venturing to cha- 

 racterize as nevv a bird belonging to this complicated group. 



32. ZONOTRICHIA BOTTERII, Sp. nOV. 



Supra ex cinereo rufescens, capitis et clorsi medii pennis media- 

 liter fusco-nigrisyharum autem marį/inibus rufeseentibus, colore 

 rufescente fusco mixtis : alis nigricuntihus, tectricihus omnibus 

 pallido fusco lute, reynigibiis rufo anguste, extus limbatis : 

 cauda graduata, nigricante ; rectricum externarum upicibus 

 valde dilutioribus, j}a/lide cinereis : subtiis albidus, pectore 

 cinerascentiore, gula clariore, praecipue ad latera rufescente 

 irroi'atus : caipo flavicante : alis et cauda subtus cinereis : 

 rostro plumbeo ; tomiis pallidioribus : pedibus flavis. 

 Long. totą 6-0, alae2-5, caudse 2' 6. 



I have in vain attempted to identify this bird with any of the 

 knovvn species of N. American Zonotrichice, and am forced to the 

 conclusion that it is probably undescribed. It comes nearer to Z. 

 cassinii, Woodhouse (Proc. Ac. Sc. Phil. vi. p. CO), than to any other 

 species with which I am acquainted ; but differs from this entirely 

 in the markings of the upper surface, the whole centre of the fea- 

 thers being dark, whereas in Z. cassinii the dark colour is confined 

 to a subapical spot. The structuve of the two birds is very much 

 alike, but the feet are rather stronger in the present species. I hope 

 M. Botteri will forward better specimens of this interesting species 

 (the examples in the present coUection being badly preserved), so 

 as to allow me to make a more accurate investigation of its differen- 

 tial characters. 



33. Picus jARDiNii, Malh. R. Z. 184.5, p. 374. 



A single example, wanting the tail, is apparently referable to this 

 rather curiously coloured species of Picus. 



34. COCCYZUS ERYTHROPHTHALMUS (Wils.). 



One specimen, apparently of this species, seems to be rather smaller 

 in size than N. American examples. 



35. Leptoptila albifrons, Bp. Consp. ii. p. 74. — Perisi, 

 brachyptera, G. R. Gray, in Mus. Brit. 



Much confusion has been caused in the uomenclature of this 



