44 BULLETIN 98, UNITED STATES NATIONAL MUSEUM. 
Adult female (type), No. 171080, U.S.N.M.; Pulo Jimaja, Septem- 
ber 22, 1899. 
The iris, it will be noticed, is white or gray. All five specimens 
show more or less evidences of the nearly completed molt, but on 
those collected on September 19 and 22 only shght traces remain. 
Measurements of the series of Pycnonotus simplex halizonus are 
given below: 
Measurements of specimens of Pycnonotus simplex halizonus. 
| ise a oO; 
| 3 s | |£8 
a Hy e | | 
U.S.N.M.| — gey. Locality. Date. Collector. | & atlas) lees 
No. | a | Se) Sie 
| S|) Sha ie) 2128 
| ° a oS p a1 
Boyes) a H | ae 
| mn, |mm,|mm.)mm.|mm,, mm, 
170944....! Male...-| Pulo Siantan, Anam- | Sept. 9,1899 | Dr. W.L. |.....|..... %3- | 13) | WSy ye 
| ba Islands. | Abbott. 
LOTS 22a od Oseeac | Pulo Jimaja, Anamba | Sept. 20,1899 |...do...... 190.5) 84 | 76 | 13.2) 18.5) 13. 
| | Islands. | | 
JANES OU AUN AD IIE Oke, Soc odos aoe oHSacacueb oc cdcouddenanededc codes 190. 5 84 | 74.5) 13.1 18.3 12.5 
171076....| Female..| Pulo Jimaja, Anamba | Sept. 19,1899 | Dr. W. L. 187.3] 84 | 76.5| 12.1 18.511 
| Islands. Abbott 
AMOR. <<]. 0< do.....|....-do BORA DECRCAn one naan GOL ass arc OO meses 187.3) 84 | 76.5) 12.2) 18.2) 11.8 
A EOSG ee 5. Sd OSs ss oforse eOO.2iciaceaat cies clan Sept. 22,1899 |...do...... 181 | 82.5) 76 | 12.8 18 | 11.5 
FACIALS OL LNTCE eM ALES 27 aj assen Dasenk eer oaamioadeeeinewet emcees 185.2) 83.5! 76.3) 12.4 18,2 11.4 
| | ear 
1 Measured in the flesh by the collector. 2 Type. 
There are evidently two distinct species at present confused under 
the name Pycnonotus simplex. One of these is a large bird, in color 
much resembling Pycnonotus plumosus, with rather yellowish brown 
upper parts; distinctly scaly crown feathers; brownish and buffy 
lower surface, particularly the crissum; and red or orange iris; to 
which the name Pycnonotus brunneus of Blyth,’ despite the briefness 
of the accompanying description, undoubtedly applies. The other 
species, which occupies nearly the same geographic range, is of 
sinaller size; has no scaly appearance on the feathers of the crown; 
has a darker, more greenish olive brown upper surface; lower parts 
with the dark areas grayish, rather than buffy, brown; the light areas, 
especially the crissum and throat, whitish, with yellowish instead of 
brownish and buffy suffusion; iris white or grayish; and in general 
coloration is almost identical with Jole olivacea. This bird is Pieno- 
notus simplex Lesson.* Dr. C. W. Richmond has recently identified ° 
Picnonotus ‘simplex Lesson with the large, brownish and buffy, red- 
eyed species; and following him the present writer described the Su- 
matra race of the white-eyed bird as Pycnonotus olivaceus chloeodis.® 
After much further study of these birds I am now convinced, how- 
* Journ. Asiatic Soc. Bengal, vol. 14, pt. 2, No. 164, December, 1845, p. 568 (Malacca, Malay Peninsula). 
4 Rev. Zool., vol. 2, June, 1839, p. 167 (Sumatra). 
6 Proc. U. S. Nat. Mus., vol. 26, Feb. 4, 1903, pp. 506-507. 
€ Smiths. Mise. Coll., vol. 60, No. 7, Oct. 26, 1912, p. 11. 
