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 Nov., 1917 NEW SUBSPECIES OF GEOTHLYPIS BELDINGI 183 cas region and those from the central portion of the Lower California peninsula. On further comparison the latter prove to represent a remarkable new subspe- cies, which I take pleasure in dedicating to Mr. Edward A. Goldman, who, with Mr. E. W. Nelson, collected the type series. OeothlYl beldingi goldmani, subsp. nov. CHARS. suBse.--Similar to Geothlypis beldi,gi beldingi, but male with the upper surface much duller, more brownish or grayish (less yellowish) through- out; crown behind the black mask largely or wholly grayish or whitish instead of yellow; yellow of under parts somewhat lighter and confined to throat and breast; lower abdomen white or whitish, instead of usually deep yellow, as in Geothlypis beldingi; sides and flanks paler and more grayish. Femal'e similar to the female of Geothlypis beldingi, but upper parts and sides of head paler, more grayish (less yellowish); yellow of lower parts paler and less extensive, confined to throat and upper breast, the abdomen being dull whitish, slightly or not at all washed with yellow; sides and flanks paler, more grayish. DEscRe?o.--Type, adult male, no. 196026, U.S. Nat. Mus.; San Ignaeio, Lower California, Mexico; October 7, 1905; E. W. Nelson and E. A. Goldman; original number, 11766. Sineiput, lores, ocular region, cheeks, aurieulars, and a narrow line extending diagonally downward and backward to the sides of the throat, black, forming a conspicuous mask; behind this a narrow line of pale grayish mixed with whitish and a little lemon yellow, and on the post- ocular region with lemon chrome; oeeiput and eervix brownish olive, verging toward sepia, with a mixture of fine streaks of lemon yellowish, these mos conspicuous on the oeeiput, and resulting from the largely yellow bases of the feathers, which are incompletely covered by the brownish tips; back and scap- ulars dull eitrine, washed with brownish or grayish; rump similar but lighter and somewhat more grayish; upper tail-coverts of the same color as the back, but paler and of a clearer shade of eitrine; tail dark eitrine, the inner margilts of the teetrices more brownish; wings dark hair brown, the quills and coverts edged with eitrine ;. sides of neck posterior to the grayish band similar in color to the eervix, but less mixed with lemon yellow; anterior lower parts chrome yellow, paling to lemon chrome on the middle of the upper abdomen: lower abdomen dull yellowish white; under tail-coverts basally wax yellowl terminally between wax yellow and old gold; sides and flanks isabella color i thighs between tilleul buff and drab gray; edge of the wing lemon chrome; un- der wing-coverts dull grayish white, washed with lemon chrome. MrAsuurar?s.--Male: Wing, 61.5-65.5 (average, 63.5) mm.; tail, 64-70 (66); exposed eulmen, 12.5-14.3 (13.5); tarsus, 23-25 (24); middle toe without claw, 15-17 (15.7). Female :' Wing, 59-63.5 (average, 60.6) mm.; tail, 60-65.5 (62.1); exposed culmen, 13-13.5 (13.2); tarsus, 21.5-23 (22.2) middle toe without claw, 14-15.2 (14.4). ' GEOGRAPItC vSTmBU'ON.--Central Lower California, from San Ignacio to Comondu. lrazs.--This very distinct and unexpected subspecies is most readily distinguished from Geothlypis beldingi beldingi by the whitish crown band, the less yellowish upper parts, and whitish abdomen of the male; and the less yellowish upper surface, and paler, less extensive yel]ow of the lower parts in the female. Birds from San Ignacio, which represent the northern limit of its 'Seven specimens, from San Ignaclo and Comondu, Lower California. =Three specimens, from San Ignacio and Comondu, Lower California.