74 
THK CONDOR 
1 Vol. Ill 
Descriptions of Two New Species and Three New Subspecies of Birds Trom the Eastern 
Pacific, Collected by the Hopkins-Stanford Expedition 
to the Galapagos Islands. 
BY EDMUND HELEER AND ROBERT E. SNODGRASS. 
I. Nesotnimus melanotis dierythrus, new subsi ecies. 
Nesomiinus melajwtis (in part), Gould, Voy. Beagle, III, Birds, p. 62, 1841, (Chatham and 
Janies Islands, Galapagos); Ridgway, Proc. U. S. Nat. Mns. ,XIX, 1896, p. 489. 
Nesoinijnus melanotis melanotis (in part), Rothschild and Hartert, Novitates Zoologicae, VI, 
1899, p. 145. 
Type . — adult male. No. 4565, Leland Stanford Junior University Museum; North Seymour Is- 
and (near Indefatigable Island) Galapagos Archipelago, April 27, 1899. 
Range . — Indefatigable and Seymour Islands, Galapagos Archipelago. 
Subspecific characters — Nearest to Nesoniimus melanotiS’ (Gould) of James Island, but somewhat 
smaller in size; the bill smaller, the length of culmen averaging 22.6 mm., and measuring 
23.7 mm. in the siieciinen with the largest bill, while in N. m. melanotis the average length 
of the culmen is 24.6 iiini and our specimen with the longest bill has a culmen of 26 mm; color 
very similar to that of A', w. melanotis. but distinctly paler and of a more reddish-brown hue 
above, apjrroaching in this respect the color of the Chatham Island form, N. adamsi. 
Description of the Type — Upper parts rather light, somewhat reddish-brown, paler and more de- 
cidedl}' reddish on rump. Feathers of fore half of head with less distinct pale edges. 
Feathers of bacli dark brown centrally, with light reddish-brown edgings. Hind neck with a 
mesially interrupted collar of the pale color of the sides. Wings dark brown, the feathers all 
edged and tipped with buffy-whitish, giving a very ]')ale tone to the under surface of the wing. 
Upper surface of tail dark brown, lower surface paler brown; feathers with large/piadrate whitish 
terminal spots on the inner webs, those of the outer pair largest — 25 mm in length, on the other 
feathers gradually decreasing in size and distinctness to the middle pair on which they are en- 
tirely lacking. Lower parts dirll, dirty whitish. Sides suffused with buff. A number of distinct 
elongate brown spots on sides and flanks. Feathers of leg barred crosswise with brown. Lores, 
subocular region and auriculars blackish. A white supraocular line reaching from back of the 
nostril to the supra-aiiricular region where it is considerably widened. Lower eyelid edged with 
white. Bill and feet, black. Length 204 mm., wing 109 mm., tail 106 mm., culmen 23.5 
mm., tarsus 17 mm. 
Sixteen specimens from the Seymour Islands and the neighboring part of Inde- 
fatigable Island, Galapagos Archipelago. Collected in April and May. 
MEASUREMENTS OF ADUET SPECIMENS OF Nesominius melanotis dierythrus. 
I,.S. J. Univ. 
Mus. No. 
Sex 
L,en^h 
Wing 
4680 
5 
241 
103 
4694 
6 
250 
108 
4664 
? 
238 
95 
4693 
? 
243 
103 
4659 
97 
45^7 
6 
238 
no 
4365 
6 
240 
109 
4568 
6 
242 
it 3 
4566 
? 
229 
102 
4563 
no 
4620 
6 
244 
109 
4621 
6 
246 
107 
4635 
6 
228 
104 
4612 
? 
238 
T04 
4629 
? 
232 
103 
4646 
? 
240 
103 
Averages 
259 
105 
Tail Culmen Ma.xilla from 
Nostril 
lOI 
23-5 
16. 
103 
23 7 
I 
93 
23- 
15 - 
103 
22. 
15-5 
90 
23 - 
16. 
106 
22.7 
16. 
106 
23-5 
17 - 
108 
23 - 
16. 
107 
22. 
r6. 
1 13 
23-5 
15-5 
103 
23-5 
17 - 
102 
22.5 
16.5 
95 
22.5 
15-5 
96 
21-5 
15 - 
94 
22. 
15 - 
95 
23 - 
15-5 
94 
22.6 
16. 
Tarsus I.ocality 
35. Indefatigable Island 
35-5 
34 - 
34 - 
34 - 
36.5 North Set mour Island 
35 - 5 
34-7 
34 - 
36. 
36. 
.36- 
35 - 5 
34 - 
34 - 
35 - 
35 - 
South Seymour Island 
