No.iir.:i. L'h:risi(K\' OF ruF. cF.srs mm omasfs onFinioi.sFi:. 117 



I)<'.s(rii>(ioii.—M:iU\ iulult.; No. llTISli, H.S.N.IM.; Socono Isliind, 

 wcHtcni M(i.\i('(>, Miirch S, ISS!); ('/. II. TowuhoimI.' Ahov*^ liair brown, 

 iiicliniii}; to nifoiiH on ninip iiiid superior tail-covortH, tlui back with 

 narrow obsoloto tninsvcrso niarkiiijus, fcatliors of thi\ runij) with uioro 

 or loss ('Oiu',('ah'«l subtiuniiniil whito spots. Tiiil I'liscoiis, bioiidly 

 banod witii biilly wiiiteon oxtornaJ rtM-tricos, (his color (b'opciiinjn' to 

 hair brown on central fcathci's and bcM-orninj; more or less ol)solct(>, at- 

 least. basall,v,on all but tlu^ middle pair. Wind's I'nscoiis, the innermost 

 secondaricis and exterioi- mai}j;ins of tlu^ rest broadly barrcMl with hair 

 brown; two outer primaries narrowly edj;e(l, reniaindci' indented 

 basally on external webs with bully white; j^roater and lesser win^- 

 coverts like tlu^ back, the formei' barred dist;illy with Inseous; onltM- 

 e(lj;<» ol" alula butl'y wiiite. Lores, superciliary stripe, and sides of head 

 dull buify white, the lores and auritaihirs slightly mixed with dusky; 

 postocular stic^ak luiir brown; sides of neck \y.\U'> wood l>rown, shadinjif 

 gradually into tlni coloi- of the nape; under sur('ac<i brownish wliit(\ 

 the sides washed with grayisli bi-owii; Hanks li}>;ht wood brown; crissum 

 Tnixe<l with ochraceous bull", tlie leathers \\ith slmll spots of dai'k 

 brown; liidng of winj;' dull whitti. 



Althouji'h a. very distinct species, 'riirffoiuancs inaultirin s<'ems to l)e 

 most closely allied to 'riiri/omam'n h. Ivitntjthrys, fi-om which it differs in 

 its less conspicuous superciliary stripe, morci rulescent rump, spotted 

 instead of biiircid ciissum, pronounced ochrat'cous tinj^e to the lowi^r 

 parts, usinilly evident cross markings on the back, together with fus- 

 eons tail teatluus barred on both webs and not broadly tipped with 

 wlntish. 'i'he wing and lad of insnUivis \\vi\ shoi'ti'r than those of leu- 

 coplin/s^ approaching nearer to hrcvivaudus than to any other mendter 

 of the genus. Tiu' base of the bill bellow is yellowish, at least in diicMJ 

 skins, whei'«^as in all the other forms it is generally whitisii or gi-ayish. 



The principal individual variation (muisIsIs in the d(>pth u\' the buIfy 

 or ochraceous sull'usion beneath, and in the (U^ptli of the cohu- above, 

 although tlu^ range of neither is great. The crissum is sometimi^s 

 abnost< immaculat(*, though occasionally the spots have become ulmost 

 bars. Several of the specimens exainiiuMl hav«' been for a. long time in 

 the n. S. National Museum collection, and are miu-h more brownish 

 than those recently <'oll(Mted. 



There can be no doubt about the propiiety of phu-ing this species in 

 the genus Tliri/onuiites, for in stnu'-tural characters it agrees perfectly 

 with other nuMubers of the group, although tlu^ wien - occupying < 'laiion 

 Island, some distance to tl»e westwaid, can not be (ronsidered congiv 

 neric/, but, must, at least for the pi-esent, be rciferrc^l to 'rrof/hxii/lcs. 



Ten specimens (vxaminc^d, all Irom So<'orro Island. 



' Tlic. t,y|Mi (>r MiIh H[>n(ii'H JH HO (liMcoloicd t,li:it, (,ll(^ |HOHcii(, (IcHcripl i<iii 1i;ih Imkii 

 tukt-ii IVoiii :i. IVihIi sixxiiiicii. 



^ I'ronlodi/ka lanmri 'rovviisdiid, I'loc. II. S. NaL Mii.s., ISIK), Mil, p. i;{!{. 



