BANGS: BIRDS AND MAMMALS FROM HONDURAS. 157 
Characters. — Nearest to Arremonops controstris ruchmondi Ridg. but slightly 
smaller, especially the bill; darker in color throughout; breast and sides 
darker and purer gray ; flanks less suffused with olive-green or brownish; tail 
and wings much darker green, wholly lacking the reddish or brownish olive of 
those parts in A. conirostris richmondi ; back much darker — true olive-green ; 
bend of wing and lining of wing paler yellow. From Arremonops chloronotus 
(Salv.) the new form differs in larger size, and in the crown stripes being 
wholly black unmixed with brown. 
Measurements : — 
No. Sex. Wing. Tail. Tarsus. ial at 
10,141 Type 2 ad. 72. 67. 27. 15.0 
10,139 Topotype © ad. 72. 57.5 28. 16.2 
10,140 = do. 3 ad. 70.5 68. 27.5 15.8 
Remarks. — Arremonops conirostris centratus is intermediate between A. cont- 
rostris richmondi and A. chloronotus, but different enough from either to deserve 
a name. In the birds of North and Middle America, Ridgway! records 
A. controstris richmondi from southern Honduras (Segovia River), and A. chlo- 
ronotus from northern Honduras (San Pedro Sula), but specimens of the genus 
were not available from between these two regions, the area occupied by the 
new form. 
MAMMALS. 
Didelphis yucatanensis ALLEN. 
One young adult 9; Yaruca, 1,000 feet, Feb. 13, 1902. This specimen 
differs somewhat from true D. yucatanensis, and more material might prove 
the Honduras animal to be separable. The large opossums, on the other hand, 
are so variable that the peculiarities of this example may be only individual. 
The skull and teeth are slightly larger than in true D. yucatanensts, and the 
rostrum more swollen ; the under fur also is buffy, or ochraceous to, in places 
yellowish. 
Dr. Merriam has very kindly compared the specimen for me with the origi- 
nal series of D. yucatanensis, where he was unable to match it exactly. The 
flesh measurements taken by the collector are as follows : total length, 590; 
tail vert., 320 ; hind foot, with claw, 60; ear from notch, 45. 
Cyclopes dorsalis (Gray). 
One 9; Ceiba, January 22. 
1 Bull. U.S. Nat. Mus., 1901, No. 50, Part I., pp. 452 and 454. 
