290 



BULLETIN OF THE 



following year, however, Mr. Sclater separated the Mexican bird from 

 those of Cuba and the United States, under the name 5. mexicana, and 

 also the South American under the name 5. meridionalis. Mr. Cassin 

 says of the latter : " Very nearly related to the preceding (S. hippocrepis), 

 if distinct, and I give it, at present, as a species provisionally only. ..... 



The. colors of the upper parts seem to be less clearly defined, and of a 

 slightly different style and pattern from the preceding, and it may bear 

 about the same relation to that species (S. hippocrepis) that S. neglecta does 

 to <S\ ludoviciana. Such relation I hold to be rather probable from the 

 specimens now at hand." 



Having given the views of the describers of these several "species," I 

 may add that I have seen examples of each, and do not question that they 

 should all be referred to one. As is evident from the above-quoted re- 

 marks, these different species gradually pass into each other, — the S. 

 magna into the S. neglecla, the S. neglecta into the S. mexicana, and 

 the 6'. mexicana into the S. hippocrepis, which is their exact geographical 

 relation. 



In regard to the Florida specimens, as compared with New England 

 ones, the most striking differences consist in their smaller size and 

 much brighter colors, especially of the ventral surface. 



The following tables of measurements indicate the individual and sexual 

 differences in size, and also the difference in size between specimens from 

 the Northern States and from Florida. 



Measurements of Northern Specimens o/* Sturnella ludoviciana. 



4862 

 4863 



362 



363 



3 14 

 865 

 366 



568 

 569 



97ti4 

 9765 

 9766 

 2646 



4n42 

 41U2 



416 

 lloO 

 [134 

 2696 

 2698 

 1700 

 4045 



4D61 



2738 



Locality. 



Newton, 



Walt ham, 

 Newton, 



Maiden, " 



Evanston, 111. 



Lawn Ridge, " 

 Concord, Mass 



Collector. 



May 8, '68 



Aug. 6, "68 



Aug. 19, '68 



May 15, '69 



May 15, '69 



Aug. 6, '68 



Aug. 2, '69 



Aug. 2, '69 



May 15, 69 



C. J. Maynard 



D. Higgins 



0. Marcy 



K. Butler 

 F. C. Brown 



1075 



in 'jo 



10.25 



in 75 

 11.00 

 10 20 

 1100 

 11.00 

 0.75 

 9.25 

 9.58 

 111.50 

 10.35 



1 



10 75 



8.90 



9.50 



o 25 



75 



10.00 



9.60 



lit 25 



10.33 



w 

 ^< 



16.59 

 16.30 



15 85 



Hi 75 



17.IKI 



16.30 



17 on 

 16.00 



15.00 



13.50 

 1400 

 15.33 

 15.65 

 15 05 

 15 50 

 lino 

 I ,.68 

 13.92 

 U 65 



15 50 

 1475 

 16.00 



15.65 



5.13 



■i us 

 4.80 



,-, I I! , 



5 15 

 ■1 OS 

 5.00 



4. MP 



4.55 

 4.17 



4.:j5 

 4.82 

 4.83 

 4.75 

 4. st; 

 4.35 

 5.00 

 4 15 

 4.50 

 4.74 

 4.55 

 4.77 

 467 



3.50 

 290 

 2.92 

 3 35 

 3.35 

 •i 0i p 

 :!4ii 

 3.35 

 2.65 



•J .Ml 

 290 

 311 

 313 

 314 

 3 30 

 2.60 

 3 05 

 2 82 

 310 

 3.15 

 2K4 

 2.83 

 3.08 



