Sclater on the Sy sterna Avium. 73 
12. Setophaga picta, Swain. Painted Redstart. — $ 
and 9 > Chiracahua Mountains, April 7, 1880. 
13. Pipilo aberti, Baird. Abert’s Towhee.- — $ , Big Sandy 
Creek, iMizona, Feb. 7, 1880. 
14. Aphelocoma sordida arizonae, Ridg. Arizona Jay. 
— Three specimens, two $ , one 9 , Chiracahua Mountains, taken 
April 6-7, 1880. 
15. Empidonax fnlvifrons pallescens. Cones. Buff- 
breasted Feycatcher. — J, Chiracahua Mountains, April, 
12, 1880. 
16. Centrums nropygialis, Baird. Gila Woodpecker — 
$ , Tucson, March 8, 18S0. 
17. Colaptes chrysoides ( Math .) Baird. Malherbe’s 
Flicker. — J, Tucson, March 7, 1880. 
pj. | - ‘ ... : 
REMARKS ON THE PRElS^NT STATE OF THE 
SYSTEMA AVIUM. 
BY P. L. SC LATER A 
[Concluded from p. 37.] 
4. Coccyges. 
The remaining families of Nitzsch’s Picariae {i.e. the Coccygo- 
morphae of Huxley) stand associated together in our 4 Nomencla- 
tor’ under the name Coccyges, given to them by Sundevall in 
1835 (K. Vet. -Ac. Handl. 1835, p. 69), and are divided accord- 
ing to the structure of their feet nearly after the plan suggested 
by Prof Huxley (P. Z. S. 1867, p. 466). I fear, however, that 
this is not likely to be a permanent arrangement. Although we 
may not at once go to the length of following Prof. Garrod in 
separating the whole class of Birds into “Homalogonatas ” and 
44 Anomalogonatae,” there can, I think, be no question that some 
weight must, in future, be allowed to the presence or absence of 
the ambiens muscle, and that it must be allowed that the Cuculidas 
and Musophagidse, in possessing this character and in other 
respects, stand fier se among the Picariae of Nitzsch, and show 
much affinity with the Gallinae. I believe therefore that it will 
* From the “ Ibis,” 4th Ser., Vol. IV, pp. 399-411, Oct., 1880. 
