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show :— West coast birds: wing 5:12, tail 4:06, tarsus 1:26; Jalapa birds: wing 4:98, tail 3:04, 
culmen 0°83, tarsus 1:20. It thus appears that the east coast bird is well entitled to subspecific 
rank, and I apply to it, therefore, the name assimilis of Cabanis, based by him on Jalapa specimens.” 
Mr. Salvin and I have examined the series of specimens in the British Museum with a view to 
determining the above-mentioned differences between eastern and western specimens, and we 
cannot discover any ground for their separation, when examples killed at the same time of year are 
compared. The differences noted by Mr. Nelson are those of season. Examples from Huatusco and 
Coatepec are absolutely identical with others from Omilteme and Colima. There is no geographical - 
isolation between these supposed races of Eastern and Western Mexico, as the Salvin-Godman 
Collection contains specimens from intermediate localities. 
The figure in the Plate represents a specimen from the neighbourhood of the city of Mexico, in 
the Seebohm Collection. [R. B. S.] 
