Suan catet ae wires bene kr ee | et tr O80 _-. _ rr : - - + : 8: yp pate patty sie ree sovivere aris geet ea it err " gt yi + Y) } A } aires Y aH my iF Pe ‘ iss et a TF lawn : Atte i eta ; oF riedehsth ioteershca reat Tratiter da * Be Sune utes Madedstet Ap aegrne ye ape tse 0 eps Nhat bet ergs SN Hb Ar) + Bie sate y : rad ‘ atrers ? a ue TAA ' A) oe 4 11908 A vit ss } : ; a ites Chee oe een adaeaea ae anteke * teers * xh) phe shen ye rrr hits a ae aateees, pease ory eee. ; be ts ae y nda vi Nheitafier rotadacenes ohn nena i Me * . ms my bytes ; hf auto 2 a4 SS eae rR Tae w Sgevdes ie? wey) stk De ke la cine ‘eal tly tie bw belade fe ee laes aig; beat Ltd ee ts + taal ‘oti wi 4 7) ree SH ; mate: wt He te ae Or ches Toph aie i” aetiee Rein AR Abrs Aoi oe ae hie vite at a es . tae acta re Me a} a 4 } i ‘ oO ea at | \ Eh taut 44 Beith rth aaaia hee hata aes naa oe Kt i 4 Basel: tains z Whety bal SN iat tins He , r it af Meat! \4 aires Hichitanh " yk heey’ 49 tt Bits: tai } Us th Panis ae mal tba" ni ti i) tim hela tds } ian it Mt rere winery 4 ag : i by " Nila t Nene E RR aR mvt ity , ‘7 i “yan My ah i ; Ri a Battin ave ath ba cat a i Aee ttt ie ni Ab i foe pee hy Fi th be ith jie Wigp) Any oh . stot ith Ht bbe t) é +e ris initia th ne bis Sent tea 4 ei We if sat Hee 4 ites pratt westishet lt +; te {ues as AD Sg rite! 0813 i : ih ve ihe) ale f Pe hh tet say ‘ hy i ; ; He is ie ft Py ce st Mate f° a vats ite aI “y ‘ Oy Pisa inal i oat EA ‘4 mitts lll steve iw bie) Pete mak use ‘ sits f as i es ein Hepes an \ Wei 0 ! Pa a Fi qi iD ‘ é a Wan ia a ; ’ | ma BIRDS OF BRITISH GUIANA.—C. CHUBB. 250 copies of this work have been printed, | of which this 1s No. P. SLUD THE EEE OS Or pe Et i SoBeeGe UT AgNesws BASED ON THE COLLECTION OF FREDERICK VAVASOUR McCONNELL, CAMFIELD PLACK, HATFIELD, HERTS. BY CHARLES CHUBB, F.Z.8., M.B.O.U., ZOOLOGICAL DEPARTMENT, BRITISH MUSEUM, VOL. II. DEC 03 1992 P. SLUD Ler ARIES LONDON: BERNARD QUARITCH, 11 GRAFTON STREET, W. 1921. ALERE FLAMMAM. PRINTED BY TAYLOR AND FRANCIS, RED LION COURT, FLEET STREET, LONDON. INTRODUCTION. Tue Itinerary of the Expedition to Mount Roraima iu 1898, in the present volume, has’ been written by Mr. J. J. Quelch, who accompanied the late Mr. F, V. McConnell on that occasion. During the progress of this work the following genera, species, and subspecific forms have been described, many of which have been published elsewhere, but all of them have been referred to in the present volume :—Pseudoconophaga, p. 4; Mackenziena, p. 7; Frederickena, p. 8; Sakesphorus, p. 14; Poliolema, p. 35; Inehropogon, p. 66; Stictomyrmornis, p. 70; Dendrocinclopa, p- 119; Aicrocochlearus, p. 159; Vavasouria, p. 319; Microphila, p- 486; Duncanula, p. 440; Cercomacra cinerascens immaculata, p. 45; C. tyrannina saturatior, p. 46; Grallaria regulus roraime, p- 80; Hylopezus macularia maceonelli, p. 84; Grallaricula nana kukenamensis, p. 86; Lochmias nematura castanonota, p. &9; Sclerurus mexicanus macconnelli, p. 92; Synallaxis macconnelli, p- 95; S. albigularis josephine, p. 96; Automolus turdinus mac- connelli, p.103; Philydor erythrocercus guanensis, p. 107; Dendro- cinclopa lonyicauda guianensis, p. 120; Rhynchocyclus sulphurescens evaminatus, p. 149; R. poliocephalus inquisitor, p. 150; R. flavi- ventris gloriosus, p. 151; Microcochlearius josephine, p. 160 ; Perissotriccus ecaudatus miserabilis, p.161; + es 158 G4. Head of Microcochlearius josephine—to show the awe gue of the bill, nostrils, and rictal bristles ..... 159 65. Figure of Perissotriccus ecaudatus miser Bitige to faite: fh “small size, short tail, upper aspect of bill, ee and rictal bristles . ; ' . 160 66. Wing of “Ajaletes iccus ¥slavien +0 show aie: wing ase nie Fist oy 162 67. Wing of Colopteryx galeata—to show the wing formula ...... 163 68. Head of Hapalocercus meloryphus—to show the ii ai of the bill and rictal bristles .............. , . 164 69. Head of Habura pectoralis—to show ea upper Re aatiot ‘of ate bit, nostrils, and rictal bristlopii. visi ace sedasiercievavweescivddves 166 Ixxxiv LIST OF ILLUSTRATIONS. Fig. 70. . Head of Horizopus virens Head of Serpophaga subcristata—to show the upper vee of the bill, nostrils, and rictal bristles primaries to recurve at the tips ....... . Head of Leptopogon superciliaris—to shaw ithe Pee aspect of the head, bill, and rictal bristles . Head of Capsiempis flaveola—to show the crown GF ie head, bill, nostrils, and rictal bristles . Head of Phyllomyias brevirostris—to show ee apres r aspect of the bill, nostrils, and rictal bristles . . Head of Pheomyias incompta—to show the fitiened bill sree . Head of Ornithion inerme—to illustrate the shape of the bill . Head of Tyrannulus elatus—to show the upper aspect of the bill, position of nostrils, and rictal bristles . Head of Tyranniseus nigripillus—to show the upper ietieat af the bill, position of nostrils, and rictal bristles . Head of Elenia pagana—to show the crest ieiiee . A section of the under side of the wing of Llainopsis gaimardit —to show the spine at the base of the first primary ......... . Head of Legatus albicollis—to show the upper 6a of the bill, position of nostrils, and rictal bristles . Head of Mytozetetes cayennensis—to show the upper ‘Aabeat éf the bill, partially covered nostrils, and rictal bristles . Head of Pitangus sulphuratus—to illustrate the shape of the bill and the black bristles on the fore-part of the head eee wee . Head of Myrodynastes maculatus—to show the upper aspect . 205 . Head of Megarhynchus pitangua—to show the upper aspect of of the bill, the bristles, and the covered nostrils the bill, the position of the ee which are covered, and the rictal bristles . Head of Onychorhynchus cor Vain hb ste one flattened bill, and highly-developed rictal bristles. . Wing of Hirundinea AG OR show the fommuean of the Wine) .04ae . Head of Myiobius ae pe ie the. upper Shanes re the bill, position of nostrils, and rictal bristles . Head of Pyrocephalus rubineus—to show the ee flattened bill, nostrils, and rictal bristles ee a) . Head of Empidochanes fuscatus—to show the depressed bill, which 1s sharply hooked, and rictal bristles ..... to show the upper aspect ef ate bill, position of nostrils, and rictal bristles eee ee ey . Head of Blacicus andinus—to show the form of the bill, position of nostrils, and rictal bristles .......... . Head of Mytarchus ferox—to show the upper aspecto . ‘the bill, position of nostrils, and rictal bristles ....... Page - MGT. . Wing of Pipr omorpha oleaginea—to show the tendeney oe ihe 199 . Head of Lathria cinerea 5. Wing of Rupicola etetala = tis eae Fee wing Riscipila }. Head of Luchlornis riefferi—to show the bill which is hooked . Head of Lodopleura pipra—to show the shape of the bill LIST OF ILLUSTRATIONS. Ixxxv . Head of Empidonomus varius—to show the sharply hooked bill and the rictal bristles . Wing of Tyrannus tyrannus—to se the easy vi Uhe wing and the incised tips of the outer primaries ........... . Wing of Muscivora tyrannus—to show the incisions on the three outer primary -qQuillss cic ag sic cer as . Head of Oxyyruncus hg acon ines ae ce ae oe of the bill . Section of outer primary- Pei a ae uncus ee RE er show the hooked barbs on the outer web ...:........ . Head of Pipra aureola—to show the upper aspect of ihe Dill, position of the nostrils, and rictal bristles . Head of Chloropipo uniformis—to show the shape of ike Dill . Head of Piprites pileatus—to show the bill and rictal bristles. 2. Head of Ceratopipra cornuta—to show the divided crest ...... . Head of Xenopipo atronitens—to show the form of the bill... |. Head of Chiroxiphia pareola—to show the bill and the V-shaped patch on the top of the head .. . Wings and tail of Corapipra Drath ts oe the ¢ narrow pip - primary-quills .............. 3. Wing of Chiromacheris pee Ait Staae thes narrow eet curved primaries . Wing of Tityra cay Pee. notche ae, Ee: RON EP aa J ap pr imary . Wing of Bilgwoment: minor me uaa. the ree ine pee form of the second primary . Wing of Pachyrhamphus griscigular tll di aut ie atoetiie and incised tip of second primary . to cea the hemes Dill, eee nostrils, and rictal bristles . Head of Laniocerca hypopyrrha—to ciate the re of the pill, 2. Tarsus and foot of Lipangus simplex—to show the ee on the back of the tarsus . Head of Attila spadiceus spadicens—to shat: the sharply hooked bill and rictal bristles .. . Wing of Phenicocercus car pile pulse dene Am aonlia yaa of the fourth primary .. at the tip and de pana at the base and the nostrils, which are partially covered , . Wing of Cotinga solinaa —to sae thd Se uated 1 primaries . 2 . Wing of Aipholena punicea—to show the formation of the major upper wing-coverts ee ee ee ee ey 801 Ixxxvi LIST OF ILLUSTRATIONS. Fig. 120. 121. Page Head of Hematoderus militaris—to show the form of the bill, the covered nostrils, and the disintegrated crest ......... 306 Head of Querula purpurata—to show the ee of the bill --and the covered nostrils .............. Ber . Head of Pyroderus scutata—to chow ne shape of ‘ia bi 7 aaa the partially hidden nostrils ............. . 809 . Head of Cephalopterus ornatus—to aie Pie meen a ‘tuft - of feathers on the crown of the head and the irae: lappet on the throat ......... van deo eee eee . Head of Calvifrons calvus—to dhiere ae Bat heal Scvot haeilege 312 . Head of Gymnoderus fetidus—to show the black velvety feathers on the head and the bare spaces on the sides of the NGCI., nine eeveeaee Gooun engi ; . 34 . Head of Procnias car Oe bee oe ‘De re ke Ww teas on the chin and throat.. AS aes , 316 . Head and primary- aeally ne Vane ia pa ioe vis wattle on the forehead and the sia shaped primaries at the tip .. Meat tie ict ee tiueckatatecw seas en . Tail of eer ta ripar SEES is eee ee seagate 323 . Tail of Tachycineta albiventris—to show the pias under tail- COVENLSi: a steekon nee : en 2) . Tail of Hirundo e7 pthragester ee aN ps lon eae ‘tail- feathers.. SO coheed ia ok cee . Tail of Prog ce ps finches oe Fatantien siciucttenespon! ee 2. Tail of Atticora fasciata—to show its formation ............... 844 . Tail of Stelgidopterx equalis—to illustrate its Bee 8 Sopa 549 . A section of the outer primary of sik lake ok wa ania: show the serrations on. the outer web.. : . d49 135. Head of Polioptila innotata—to show ie upper aspect ae the bill, position of nostrils,.and rictal bristles ....... om 136. Head of Heleodytes griseus—to show the form of ine bill ... ooo 137. Head of Thryophilus albipectus—to illustrate the formation of the head and bill .. Reece seuss OOF 188. Head of Otstothorus aiecie es itigients tie ahie bills ee. 258 139. Head of Troglodytes claruws—to show the long bill... ......... 859 140. Wings and tail of Henicorhina leucosticta—to show the length of the tail in comparison to the wing......... . 363 141. Head of Leucolepis arada—to show the peculiar Px ane of the bill .. ee . 365 142. Wings and ‘tail of ‘Wises ocer Janes amitieeay doe the cage of the wings in comparison with the tail. ........... ... 368 143. Head of Mimus gilvus—to illustrate the singe of ihe Te Be 371 144. Head of Donacobius Maha Sisuie show the form of the bill and nostrils. 2.0... 0e0000. : .. ol 145. Head of Platycichla venez elena eine ay Shape of the tall and nostrils, .; 2,0), 6 ee ee ee 370 Fig. 146. 147, 148. 149. 150. 151. LIST OF ILLUSTRATIONS. Ixxxvil Head of Cichlopsis gularis—to show the shape of the bill ‘Head of Planesticus leucops—to illustrate the ae of the bill Head of Hy ioctchia Fudtoeame™ te Baas fad an of ile bill. Head of Vireo calidris—to show the slender and hooked bill . Head of Pachysylvia eee show the form of the bill se the sides of the face.. . Head of Cyclarhis gujanensis—to aw fie See ae cand hooked bill ... . Head of Compsothlypis hee a sea he aoe bill. Sees - Head of Dendreca estiva—to show the pointed bill............ ¢ . Head of Seturus noveboracensis—to show the erin on the side of the face .. . Head of Geothilypis patios da aioe ee Pen hs ie bill and nostrils ....... . Head of Granatellus pins ia ms Manders oe shape ne oe bill . Head of Seronhone 7 peslia te Biow, ne font Re ihe bill oad nostrils . . Head of Nenu RA Meee’ han ake: Chie Poa pointed bill . . Head of Cyanocompea agtheohilde—t oe ahs ston, a pointed bill . . Head of Oryzobor us poieecsrei tn. thot the. aioe, thick bill, and the position of the nostrils .......... bill . Head of Pyrrhulag ae Eee toricensis—to show the foo of ‘the . Head of Spor pila needs eso fae the fort m eat tha bill . . Head of Wierophila castaneiventris—to show the small bill with its‘straight culmen.. . Head of Tiaris pain hileta dies tia fant of Sie bill. on . Head of Volatinia (a + +4 if ew ' 4 oe)’ my) oh, { ie ethane pane oo TER ets 3 a a rah aL ‘ i’ Oe thy. a pers Kole ee aS a te) hig tte one i ae ee icic\ ck ee 0 Po soe rs » a p* m1 © eae A ee Se riche Abs oy ove | = - a, pede pA eae vant ee ge iaee suebue avoviVmcaponats * oe sailed ei byt ian ne a a ., re 2 ney jie! ' an hs ik WME Bi, 1) € Li ah aye 2 bay vr {, an seh alry ve th neg ae one bee re en eaten iF Shh a Ne ee aun: a oe Be % ates he | sy cu ia. Lipids Me inka oe ) ul ) tag ; voredi vis HAueae MneMibg eases? weyeay PETS nid All che i Mithey iT ee ee ’ a a ey vi Fe eA ts WU Ios ath . we ‘ al ea eA! coe Ee SOE ‘ 5 aae bd ile al lit wes age Te oN eee tie ie ER ah? EL 2 oan ie tone iP Ae 7) ~ PP oy ope Drees etete Heese w ser ens tee ete ch ; a figlt, hy ere A, : = ~ Ee ee |W SR PEMRRALN (ii oelthan) > HR pee: wy nD Ae Tei. a » 5 - Lea aan eee ia dicks pb & ae aks ne Fs barre « rh ; a ARNON S 22% Ne Prreeay rr a) eT eet OY SEPT eer et tei ve ear cay, Ti. hee on Pe ee eT tg Breet Class — BAe a SiON RD ate ae OR ES deo e ‘ae : ’ mane tai me) Pm I ai - 2 4 1 ADR eae « ae ° . . +e ler rs YU ra ss windy > ie ta uy] i anthte evi en a mar Te ners he ih y Ay “ JEP Ae My Mat eee MeL Fan DUG al tc Shieh Js : 4 bt wv de veo ° - PERS) ke A ies OF fF: ern} Wats hiv Ne Se a ees oer Freres “Pe REE of Aha hers: Hall ADS oe ae Rwy ha BRA gis 8 Ei peal <0 Gans wai vty tir 7 ee NPTEeTPrered try) cit th te Fa) pity by Det oy, Sap rd eset |, [Spe OT Ama Le : tea wea WD ot iy Bed | ne Ppl ai é ‘ae Ae yh Went Pierre POs ee wee wee a seo ehegeanes sponse IF he kta? i sie wt gil aa al mies Vt: ie vy. eee Ad © ah tae atti op Mota an — Sh ; hove i ee Pris AP | he as ig ss ae 7 Rad anid, a j seh Pe sie: + avis + rashs ya abaesee sigs ey ; ; ey, acs wie 3 lg icoyae a : A =i hen : eres Fa | /, La ¥' ’ a et 3 . , * ry y ‘ Ore n 4 Ps Sy. | co a |e An ae A $ a. 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cinerascens imumaculata TEARS 9 su a Wate Och Sms tyrannina saturatior Chubd. fs UNitd de VW 202077 | ad albitrons (Linn.) ........ Anoplops Cab. § Hein. .... rutigula (Bodd.) Miysnroring erie! oc y cals xsl torquata torquata (Bodd.). Percnostola Cub. § Hein. rutiitrons (Gmel.) ........ Selatena:Oberb. Gon. cs ees <2 Neeved (GREER) os> veins 20 « leucostigma (Pelz.) ...... saturata (Salv.)....02+ 6 Myrmoderus (2idgw.) ........ lungipes (Swains.) ...... ferrugineus (Miill.) ...... atrothorax (Bodd.) ...... Hypocnemie: Cab... oii... cantator (Bodd.) ........ Myrmoborus Cab. § Hein. .... angustirostris (Cab.)...... Dichropogon Chubb... ........ pecilonota (Cad.)........ Hypocnemoides Langs § ROMEO genie cso oen nes melanopogon (Sc/.) Stictomyrmornis Chubb ...... neovius (Gmel.) .......... Phlegopsis Reichenb. ........ erythroptera Gould ...... Formicarius Bodd. .......... Colima Beda... i. cele ese MPINGAUE COUN.) iets isso CDRRIGRON FID: 6.6 sid's a a's's oie 5 fulvescens Salv. § Godm... Grallaria Vietll. ......56..+- regulus roraimw Chubb WAPUCMIOG:) oo. hd dene brevicauda (Bodd.) ...... simplex Salo, ty Godm. Cia We te pT et xcil Page IIylopezus Pidgw. ...-.0.+es 84 maculariamacconnelli Chubs 84 Grallaricula Scl. ......c+2e+. 86 nava kukenamensis Chubb. 86 Family Furnarupz .... 87 Furnarius Viel. ..2 se essier 87 leucopus leucopus Suwains.. 87 Lochmias Swains.........-+++> 89 nematuracastanonotaChubb 89 Sclerurus Swains......,0..--> 90 caudacutus ( V “ieill.) . Seay) ruficularis Pelz.......... ooo mexicanus macconnelli Chubb ee eeereee ee 92 Family SyNALLAXIDH .. 93 Synallaxis .......0.- 2 LG SPAT 3 poliophrys Cad....... ease OA macconnelli Chubb ...... 95 albigularis josephinze Chubb 96 guianensis (Gmel.) ...... 97 cinnamomea (Gmel.) .... 98 adusta Salv. §& Godm. .... 100 Berlepschia Ridgw. ......... ~ £01 TUCOPU BAI), sone sw a owe 101 Automolus Reichenbh. turdinus macconnelli Chubb 103 albigularis (Salv. § Godm.). 104 cervicalis (Scl.) ....0.20.. 105 Philydor Apart. 2 5 xin ows s § 106 pyrrhodes (CaB.)) sick cn as 107 erythrocercus guianensis CRUOB erase cams peered Family XENoOPIDZ ...... 108 menos Iilig.. . ss5s=ees beer . 109 genibarbis Illig... 1... 109 ‘Family DenprocoLtaptTip& 111 Glyphorhynchus Wied. ...... 111 cuneatus simillimus Hart. § p0ds, © ..\e.s edad 2 Dendrocincla Gray .......+4. 114 fuliginosa ( Vietll.)........ 116 merula (ZLicht.).........- 116 Sittasomus Swains. .......... ily amazonus Lafr. ........ 118 Dendrocinclopa Chubb........ 119 longicauda guianensis LE ERT Ee 120 Xiphorhynchus Swains. ...... 120 sororius Berl. § Hart..... 121 pardalotus ( Vieill.) ...... 122 polystictus (Salv. § Godm.) 123 SYSTEMATIC INDEX. Page Dendroplex Swains..........- 124 piens (Gmel,) ..- a eekene 124 Thipobrotus Cab. 1... 0.0.0: 126 puncticeps (Sel. § Salv.) .. 126 albolineatus (Zafr.)...... 127 Campylorhamphus Ber Re: ie ed oe procurvoides (Zafr.) .... 180 Dendrocolaptes Herm......... 131 plagosus Salv. § Godm. .. 131 certhin «(Bodd.).'.’, &s.20%s 132 Family TYRANNIDE . 133 Mecocerculus Scl........... .. 134 setophagoides (Bonap.) .. 134 Ochthornis Sc/..... aly is lGja tr 135 littoralis (Pelz.) ....... .. 136 Fluvicola Swains...........005 137 pica (Bodd.) ...... esa eee Arundinicola dOrb.........++ 139 leucocephala (Zinn.) .... 140 Colonia J..E. Gray... bguseeme wee leuconotus (Lafr.) ...... 142 Placostomus Ridgw. ...+..06 143 griseiceps (Salv.) ....+... 148 insularis (Allen) ......-. 144 saturatus Salv. § Godm. .. 145 gumia Bangs § Penard .. 146 Craspedoprion Hart. .....+. . 47 guianensis McConnell .... 148 Rhynchocyclus Cab. § Hein. .. 149 sulphurascens eXaminatus Chubb ta. fags ss oleae . 149 poliocephalus inquisitor Chubo, £ 5.5 assuan sae 150 ffaviventris gloriosus Chubb 151 Ramphotrigon Bonap. ay oe 152 ruficauda (Spiz) ....++.. 103 Todirostrum Less. ......+6. . 154 cinereum (Linn.) ........ 154 pictum Salv. ....02002008 156 maculatum (Desm.)...... 157 Euscarthmus Wied........0++ 158 russatus Salv. § Godm, .. 158 Microcochlearius Chubb ..... . 159 josephine (Chubb) ...... 160 Perissotriccus Oberh. .....+6. 160 miserabilis Chubb....... OL Atalotriccus Ridgw........... 162 griseiceps whitelyanus Chabb tiation «iis ats 0% 3% 162 Calopteryx Ridgw .........+: 163 galeatus macconnelli COMPRA 125d oie ts vain * 163 Hapalocercus Cab. .........- 164 striaticeps Salv. ........ 165 Habrura Cab, §& Hein. ..-..... 166 brevipennis Berl. § Hart, . 166 SYSTEMATIC INDEX. Page Serpophaga Gould. .......... 167 caudata (Salv.)......+.. . 168 helenze Chubb .......... 169 Pipromorpha Bonap. ........ 170 oleagineamacconnelliChubb 170 oleaginea roraime Chubb . 172 Leptopogon CREM an wes a'd ed wel Se aimaurocephalus Cab. « Lie Capsiempis Cub. § Hein. . 174 flaveola (Licht.) ........ 175 Phyllomyias Cad. § Hein. .... 176 eriseiceps (Sel. § Salv.) .. 176 Pheomyias SRA Sette Mima, 176 incompta (Cab. & Hein.) .. 177 loath nt PARTE ots oles «ove cred 178 ATIGRIVE: LL OREL.: ~ scale 179 pusillum Cab. § Hein..... 180 Tyranonlus Viel... v0. sande 181 Clabes (262) ww = ne 181 Tyranniscus Cab. § Hein. .... 182 gracillipes Scl. & Salv..... 1838 acer Saiv. & Godm....... 183 WhpnGAc Swtl: sa wideuvese cere 185 pagana macconnelli Chubb 186 pagana olivina Salv. & EG) se -s Gale sees as bon pagana ruficeps Pelz. .... 188 cristata whitelyi Chubb ... 189 cristata parvirostris Pelz... 190 [brevirostris Tsch.] ...... 192 Elainopsis Ridgw............. 192 guianensis Berl. ........ 192 Legatus | ee Oey ae 194 albico!lis successor Chubb. 194 Myiozetetes Sci. ............ 196 cayennensis (Linn.)...... 196 sulphureus (Spiv)........ 198 Pitangus Swains. ........ ee Lae sulphuratus (Zinn.) °,.. 199 Rgtor (Licht:}icvceataces 2038 ae 204 Myiodynastes Bonap. . . 205 maculatus (P. L. S.M il) 206 solitarius duncani Chubb, . 208 Megarhynchus Thunb......... ’ 209 pitangua (Linn.) ....... 209 Onychorhynechus Fisch. ...... 211 coronatus (P. LZ. S. Mill) 212 {lirundinea d’ Orb. § Lafr. . 2138 ferruginea (Gmel.) ...... 213 PRVROULNS GAY. iis 6 oe bedcditas 214 barbatus (Gmel.) ........ 215 roraimae Salv, § Godm. 216 fasciatus (P. ZL. S. Miill.).. 217 erythrurus Cah.....0+.505 218 Pyrocephalus Gould ........2 saturatus Berl. § LHart. 219 xelii Page Empidochanes Sel. .......... 221 cabanisi (Léot.).......... 221 BALYINE em A stele «alate ae . 222 Horigzopus’ Oberh. os. oss 3 2s 223 ardesiacus (Lafr.)...... .. 224 Blacicus, Cage los 3 eee ~» 225 andinus (Tacz.)........0. 225 Myiacchus Cab. > ~ .wesvees one 226 tyrannulus (P. 8S. L. ot 227 ferox (Gmel.) 2 pheonotus Salv. & Godm. 229 [pelzelni Berl.J........ .. 229 nigriceps Sel............ 230 Em pidonomus Cab. & Hein. ., 230 varius parvirostris Chubb . 231 Tyrannus Laeép: (s/o. !/. 05. . 233 tyrannus (Linn.) ........ 234 satrapa (Cab.) ....5.... . 234 Muscivora Lacép.......... 22. 206 tyrannus (Linn.) ........ 237 Family OxyRUNCIDE..., 239 Oxyruncus Temm. ......-+.. 239 hypoglaucus Sal. § Godm. 240 Family Prrrip# ..... an Ok Pipra Lint. esi sepocsesse ces 241 aurecla (elie. yoo secd esas 242 erythrocephala (Zinn. ie «1. 246 leucocilla (Zenn.) .......- 246 suavissima eed § Godm... 247 virescens Pela. 0. asi": .. 248 Chloropipo Cab. ‘ POMP . 249 uniformis Salo, cv Godm... 250 Piprites Cab,....erececeeeens 251 ehlorion ‘(Gab) i. sore 3's 251 Ceratopipra Bonap. .......45+ 252 connie (gery trons 253 iracunda (Salv. § Godm.).. 264 Xenopipo Cab. ....eeesessees 265 atronitens Cab.......... . 255 Chiroxipha Cad. ......eeeees 256 pareola (Linn.).......0+: 256 Corapipo Bonap. ........+++- 258 gutturalis (Zinn.) ...... 259 Chiromachieris Cab..........+. 260 manacus (Linn.) ......05 261 Neopipo Sel. § Salv........ 00. 262 helenvwe McConnell ...... 262 Seotothorus Qberh. .......64- 268 olivaceus Ridgw. .....05 264 Neopelma Sel. ....... oe te chrysocephala Pelz. ...... 265 Family Corrncipm,.,... 266 Tityra Vieill........ Wasizire s-4s 266 cayana (Linz.) ......6 «: 267 h XClv SYSTEMATIC INDEX. Page | Page Platypsaris Sel... 26. .cs ».. 269 Preeti Fore «0. . 2): vies Safonts 329 minor (1658;)\ «ss shislaae 269 pubis {Tenn} .'.22 =e Sune 330 Pachyrhamphus Gray........ 271 chalybea (Gmel.) ....... . dol griseogularis Salv. §& Godm. 272 tapera (Linn.) ...... oon. DAZ xatus (Sodd.).. ¢ ais uvien #273 Atticora Bote... 635) es52 08 344 macconnelli Chubb ...... 274 fasciata (Gmel.) ......4. 345 atricapillus (Merrem).... 275 melanoleuca ( Wied.)...... 346 iuathria Swains.. .. decane 277 cyanoleuca (Vieill.) ...... B47 cinerea ( Vieil/.)........- 278 fucata roraimze Chubb .... 343 streptophora Salv. §& Godm, 280 Stelgidopteryx Baird ........ 349 Laniocerca Less. ...isacs'ss = 281 squalis Bangs 01: 0.294 350 ‘ ae 9 Lapras ie ane 2 Family Mescrcartoa:.... 301 simplex (Licht.) ........ 283 Poltophibges 3 23S cak oes 351 Attila ess), oon 284 innotata Helin. ....0.7% 352 spadiceus spadiceus (Gmel.) 285 : : spadiceus uropygialis( Cab.) 286 Family Trogtopytin® .. 353 spadiceus _ spodiostethus Heleodytes Cab. .........005 353 Salo. § Godm. Mie Es <> 288 eae (Swains.) ... 204% 353 thamnophiloides (Spir) .. 289 Thryophilus Baird .......... 354 Pheenicocercus Swains. ...... 290 “albipectus (Cab 3, OSES 855 carnifex (Linn.) ........ = Pheugopedius Cab. .......... 356 Rupicola Briss. teen teeee alan 2OZ criseigula (Lawr.) ...... 2856 rupicola (Linmn.) ...... ri 293 Cistothorus Cab. .......... et Euchlornis de £7. vente eas 296 alticola Salv. & Godm..... 358 : whitelyi (Salv. § Godm.),. 296 Troglodytes Vietil, .......... 359 Cotinga Briss. . 1.0. cee eee es 298 clarus Berl. & Hart. .... 360 cotinga (Linn.).......++. 299 PR Ce saan os a 862 , eayana (Linn) . 06s... 6s. 300 Henicorhina Scl. §& Salv..... .. 363 Nipholena Gloger.... 6.66.54. 301 leucosticta (Cab.)........ 263 punicea (Lall.) .......... 302 Leucolepis Reichenb. ........ 365 fodopleura Less. .........+. 808 arada (Herm.) .........- 365 leucopygia Salv. ........ 304 Microcerculus Baird....... 44. 368 ‘ ee (J i bitten eens ee bambla (Bodd.) .,...... 369 sematoderus Bonap. ........ ale & C2 militaris (Zath.) ,+<0dsces 306 ia biscy Bor ere! Querula Viel. ... Parte 307 Family Mimm ........ 371 purpurata (P. L. S. Mill.) 308 ely ig tee eniene Ged, inca chee 309 shin Pea Poor one "9a i orenocensis Lafr......... 310 D ss bin ie ied: POA STE 373 Cephalopterus Geoffr....... . 310 ncaa sapillue ( Li “aa cere: ornatus Geoffr. ......5.0 310 atricapellue (tam) aimed Calvifrons Daud... ov. sees. O12 ae oe calvus (Gmel.) ......00.. 318 Family CORRS Ae shies he Gymnoderus Geoffr........-. . 314 Tlatycichla Baird. pe. .3.004. 375 foetidus (Zinn.).......... 315 venezuelensis Sharpe .... 376 BPrenias IUig. 6 os sie © atam ae 316 Cichlopsis Cab. Sey Ares eae a 377 earnobarba (Less.) ...... 317 gularis Salv. § Godm..... 377 Vavasouria Chubb .......... 319 Planesticus Bonap. ..........4 378 lee AELOT.) 8s 820 leucope (7aaay Vii osse Tt: 379 ' roraime Salv. § God. .. 380 Family Hirunpintpm .. 323 fredericki Chubb ........ 381 Cy i rr 323 fumigatus abariensis Chubb 382 ripatia (Zann.).......).. 323 albiventer (Spiz) ........ 382 Taehyempts Cab... 02 i eck 525 gymnophthalmus (Cab.) .. 883 albiventris (Bodd.) ...... 325 | murinus (Salvin) ........ 384 PTE Oe eR 327 | arthuri Chubb... 22.0.4. 385 erythrogaster Bodd....... 327 =| pheopygus (Cud.)........ 386 SYSTEMATIC INDEX. XCV Page Peylocichla Patrd oo... a6 nso: S87 fuscescens (Stephens) .... 388 ahem (Baud 2 oe. ae 388 ustulata (Nuttall)........ 589 Family Virronip&. .... 390 VS PR ok waitin x = 910 eh 590 Salideisy (HM). 2%, «0.0 «sim 391 olivaceus (Lunm.) ........ 592 roraime Chubb .......... 393 Pachysylvia Bonap........... 594 griseiventris Ber], § Hart. 594 thoracicus abariensis Chubb 395 musicapina (Sel. §; Sa/v.).. 3896 sclateri (Salv. §& Godm.) .. 397 Interfrons (Sel.) ... 2.2.6.6 398 Vireolanius Du Bus ........ 399 ehlorigaster Bonap. ..... . 399 Cyclarhis Swains............. 400 gujanensis (Gmel.) ...... 401 Family Mntorittipm .... 402 Compsothlypis Cab........... 402 elegans (Zodd) .......... 402 Dendroeca Gray..........0. -. 403 sestiva (Gmcl.) ......504- 404 breviunguis (Spiv) ...... 405 Seiurus Swaims.. ............ 407 noveboracensis (Gmel.)..,. 407 Geothlypis Cab. .......... .. 409 wequinoctialis (Gmel.) ..., 409 Granatellus Bonap. .......... 410 2) Ls ae A ae eee 410 Setophaga Swains. .......... 411 ruticilla (Zinn.) ........ 412 Myioborus Baird ............, 415 pallidiventris (Chapm.) .. 414 castaneicapillus Cab. ..., 415 Basileuterus Cad.............. 416 roraime Sharpe ........ 416 olivascens Chapm. ..... . 417 mesoleucus Sch. ........ 418 Family Moraciniipm.... 419 Notiocorys Baird............ 419 abariensis Chubb ........ 420 Family FrinGinitinm..., 421 Cyanocompsa Cab. ........4. 42] rothschildi (Bartl.) ...... 42] Oryzoborus Cab. .........44. 423 brevirostris Berl, ........ 423 crassirostris (Gmel.) ...... 425 Pyrrhulagra Bonap. .......... 426 propinqua (Lawr.) ...... 27 Page Sporophila Cab... eee. ss. 427 intermedia Cab, ........ 425 longipennis Chubb ...... 429 whiteleyana (Sharpe) .... 430 americana (Gme/.) ...... 431 bouvronides (Less.) ...... 432 Hime nay (Lior tv ty fsalio > 435 gutturalis roraimze Chubb . 435 Microphila Chubb .........0.. 436 castaneiventris (Cab.j} .... 486 MYTIN| WAGs. (LATTE) ae eee aan 438 Duneanula Chubb ...5 026.005. 440 duncani Chubb .......00. 440 REISS MSUDGUAS: . w aaly il aier eS 4538 Hlaveola (Linn.)......... . 454 PRUNGT CRU. sn. tas optaieras 455 bye) ecb bcc @ 0//111/1) 557 OPUER: BOM ps sic'e nim ions § 5 nid . 458 americans (Gmel.) ...... 458 Myospiza Ridge... ce.c cess 459 humeralis ( Bose.) ........ 460 Brachyspiza Ridgw........... 461 macconnelli Sharpe ...... 461 Emberizoides Temm. ........ 463 sphenurus (Vie7ll.) 2.2... 463 Coryphospingus Cab. ...... . 465 eucullatus (P. Z. 8. Miill,) 465 Coccopsis Reinchend. ........ 466 gularis’ (Zinn) ......... r AGL AA TROMOD WIA oa es Gets cas 469 taciturnus (ZZerm.) ...... 469 Atlapetes Wayl, 5 wees cna 471 personatus (Cad.) ........ 471 Family Carrpipm...... 472 00 gs a ee 472 gulanensis ( COT AA Bie vss 473 Diglossa Wagl. .............. 474 major Re ante ba sa se 206 a 476 cayana (Linm.) .......... 476 angelica Bonap.......... 478. bicolor ( Vietll.) ..6.. 0.505 479 xevl Page Cyanerpes Oberh...........++ 480 cyaneus (Lin7.)........0. 4x80 ceruleus (Zinn.) ........ 489 Chlorophanes Jteichenb. ...... 485 apiza (L4nt.) .cdaneeemns 485 Family Tersinip® ....,. 487 Lersina Vteil,.... x0 passeeees 487 occidentalis (Sel.)........ 487 Family TanGaRrip#,..... 489 Chlorophonia Bonap. ........ 489 roraime Salv. § Godm. .. 489 Tanagts Pann, ous ee 490 cayennensis Gmel. .......... 492 cyanocephala ( Vieil/.) .... 493 xanthogaster ( Sudev.) 494 finschi (Sel. § Salv.)...... 495 chlorotica Linn........... 496 minuta (Cab.) ...... sire SOL violacea (Zinn.) ........ 498 plumbea (Du Bus) ...... 500 Tanagrella Swains. .......... 502 velin (Fim) eyes. ct es os 502 Tories Fite ee cad. ann 503 paradisea (Swains.) ...... 504 punctata (Zinn.) ........ 506 xanthogastra (Scel.) ... 2. 506 gutiaia (Cau ins eee: 507 cayana (Linn.) 2.0.0... 508 eyrols Tie vk. 510 mexicana (Zinn.) ....... os AD. nigrocincta (Bonap.) .... 512 whitelyi (Salv. § Godm.).. 518 TReaupis Bote * Ss woe de aeeue 514 episcopus (Zinn.) ......,, 514 melanoptera (Scl.) ...... 516 Ramphoceelus Desm. ........ 518 Garbo (Full ea en pe 519 Reraen’ Vielll,..% lcccaaan 21 rabta (Lim) 53S . 522 heemalea Salv. § Godm. .. 523 macconnelli Chubb ...... 524 amaons (Teth.)' Forces ee 525 Cyanicterus Bonap........... 527 cyanicterus Vieill, ...... 527 | Ra ee eae ee 529 fulvus (Bodd.) .......... 529 Tachyphonus Vieill........... 531 ol es i el 582 pheeniceus Swains. ...... 535 luctuosus Lafr. § d' Orb... 534 surinamus (Linn.)........ 585 intercedens Berl. ........ 536 SYSTEMATIC INDEX. Page Haeowionn Sel... os -cedapene 537 penicillata (Sprv)...... .. 538 Mitrospingus Ftadgw. ........ 538 oleagineus (Salv.) ........ 539 NesIGE IAL... ... wens oe ane 540 pileata (Bodd.) .......... 540 Hemithraupis Cab. ........ .. 541 hellmayri Berl. ...... 0: 2's) 542 roraime Hellm. ........ 542 Lamprospiza Cab............. 548 charmesi Penard ........ 544. Ciasepaeey peas vis. se 545 leveriana (Gmel.) ........ 545 Schistochlamys Leichenb. . 546 SPR GMC.) fs as oc no ee . O47 Family IcrErIpzZ ....., 548 Ostinops (Cabs wan dx svn KEE 548 decumauus (Pall.) ...... 549 viridis (P. LZ. 8. Mill.) .. 552 Casicus Daud. cin o:: nus ate «» 554 Cela (J4n8.) oe cirnk nuit .. 55+ heemorrhous (Linn.)..... . 597 Capit x 2ieae, 5 4.(ncwan aster «+. 509 oryzivora (Gmel.) ......4+ 559 Dolichonyx Swains. .......++ . 561 oryzivorus (Linn.) ....4+ 561 _Molothrus Swains. .... ... -. 563 atronitens (ab....... oie ee les Chrysomus Swains. ........+5 565 icterocephalus (Zinn.) .... 565 Pseudoageleus Lidgw.......++ 567° imthurni (Sel.j .......... 567 Leistes Sains)... Jouse cee 568 militaris (Zinn.) ........ 569 Sturnolla View... esa See . 571 magna praticola Chubh 572 magna monticola Chubb ,. 573 Gymnomystax Reichenb....... 574 mexicanus (Linn.) ...... 575 Tetatos Bress.scati an} Aneee cies 575 xanthornus (Gmel.) ...... 576 Melanopsar Cass. ............ 578 chrysocephalus (Linn.) .. 578 Euopsar Cass. croconotus: (Wagl.) ...... 582 Lampropsar Cab. ........ ota. Oo guianensis Cab..:........ 583 Holoquiscalus Cass........... 584 lugubris (Swains.)........ 584 Family Convipm........ 586 Cyanocorax Bote ............ 586 cayanus (Linn.).......... 587 hyacinthinus Cab......... BIRDS OF BRITISH GUIANA. OO PON Li iiLarrm™ Order PASSERIFORMES. Family CONOPOPHAGIDA. Tats family is characterized by the broad, depressed, and Muscicapine bill, and further distinguished in having four notches in the posterior margin of the sternum. It consists of three genera and about fifteen species, all of which are confined to the continent ef South America—from Colembia, Venezuela, and Guiana on the North to South-east Brazil, Paraguay, and Bolivia in the South, two of the genera and two of the species being represented in British Guiana. Genus CONOPOPHAGA Vieill. Conopophaga Vieillot, Anal. nouv. Orn. p. 39, 1816. Type C. aurita (Gmel.). Myagrus Boie, Isis, 1826, p. 973, for Turdus auritus Lath., isa synonym of the present genus. Fig. 1.—Conopophaga a. aurita. The members of this genus are distinguished chiefly by their VOL. U. B 2 BIRDS OF BRITISH GUIANA. wide and depressed, or flattened bills and short tails, which are only a little longer than the tarsus. 350. Conopophaga aurita aurita. CHESTNUT-BELLIED GNAT-EATER. Turdus auritus Gmel. Syst. Nat. i. p. 827, 1789 (Cayenne). Conopophaga aurita Sclater, Cat. B. Brit. Mus. xv. p. 830 (part), 1890 (Cayenne); Brabourne & Chubb, B.S. Amer. i. p. 184, no. 1839 (part), 1912 (Guiana). Adult male. General colour above golden brown with dark edges to the feathers of the back ; upper wing-coverts more rufous-brown than the back, with pale edges to the feathers like the innermost secondaries ; bastard-wing and primary-coverts dark brown; quills brown, rufous-brown on the outer edges and pale margins to the inner webs ; tail-feathers brown; crown of head and nape deep chestnut-brown; a broad patch of silky- white feathers on the sides of the hinder crown and nape; base of forehead, lores, a line above the eye, entire sides of face, and throat deep black ; breast bright chestnut ; middle of abdomen, under wing-coverts, and under tail-coverts white; sides of the bedy and flanks greyish brown. Total length 109 mm., culmen 17, wing 72, tail 29, tarsus 27. Adult female. Differs from the adult male chiefly in the absence of the black on the throat, sides of face, base of forehead, and a line above the eye, which is replaced by grey at the base of the forehead, rufous on the sides of the face, and white on the throat tinged with rufous. Wing 68 mm. The male and female described were collected on the Ituribisi River. Breeding-season. Unknown in British Guiana. Nest. Unrecorded in British Guiana. Eggs. Undeseribed from British Guiana. Range in British Guiana. Jturibisi River, Supenaam River, Bartica, Kamakabra River, Abary River, Great Falls Demerara River (McConnell collection). Extralimital Range. Cayenne (Gmelin) ; Surinam (Penard). Habits. Unrecorded in British Guiana. Although this species was originally described from Cayenne it has not been previously recorded in the Colony of British Guiana. CORYTHOPIS. fs) Genus CORYTHOPIS Sund. Corythopis Sundevall, K. Vet.-Ak. Hand]. 1835, p. 93. Type C. calca- rata (Wied). Fig. 2.—Corythopis t. anthoides. This genus is distinguished by the longer, thinner, and narrower bill and the longer tail, which is about double the length of the tarsus. It difters entirely, too, in coloration, having the appear- ance of Dendranthus indicus, which is an aberrant Wagtail. It may not be referable, therefore, to the Conopophagide. 351. Corythopis torquata anthoides. AMAZONIAN RINGED GNAT-EATER. Muscicapa anthoides Pucher. Arch. du Mus. Paris, vii. p. 334, 1855 (Cayenne). Corythopis anthoides Salvin, Ibis, 1885, p. 4830 (Bartica Grove, Cama- cusa, Merumé Mts., River Atapurau, Roraima, 3500 ft.) ; Sclater, Cat. B. Brit. Mus. xv. p. 835, 1890 (Takutu River). Corythopis torquata anthoides Berlepsch, Nov. Zool. xv. p. 164, 1908 (Cayenne). Corythopis anthoides Brabourne & Chubb, B.S. Amer. i. p. 186, no. 1852 (part), 1912. Adult. General colour above brown with an olive tinge on the back, wings, and tail; inner webs of primary and secondary quills dark brown ; head somewhat darker than the back; throat white BZ 4 BIRDS OF BRITISH GUIANA. with an irregular band of black across the fore-neck and breast, the black extending more or less on to the feathers on the sides of the body ; sides of body brown ; remainder of the under surface white tinged with buff; under tail-coverts and under wing-coverts dark brown. Total length 123 mm., culmen 16, wing 65, tail 51, tarsus 25. The bird from which the description is taken was collected on the Ituribisi River. Breeding- season. Unknown in British Guiana. Nove. Genus PsEupoconopoPHaAGa Chubb. Pseudoconopophaga Chubb, Ann. & Mag. Nat. Hist. (9) ii. 1918, July 1, p. 122. Fig. 3.—Pseudoconopophaga melanogaster. This genus, which is founded on P. melanogaster (Menetr.), is distinguished from Conopophaga, based on C. aurita (Gmel.), by its long and narrow bill, the long tarsi and toes, the larger size, and different coloration. CORYTHOPIS. Nest. Unrecorded in British Guiana. Eggs. Undeseribed from British Guiana. Range in British Guiana. Ituribisi River, Bartica, Bonasika River, Abary River, Makauria River, Arawai River (J/cConnell collection), Roraima, Merumé Mountains, Kamakusa, Takutu River, Kamarang River ( Whitely). Exztralimital Range. Cayenne (Pucheran) ; Venezuela. Habits. Unrecorded in British Guiana. Muscicapa delalandi Less, Traité d’Orn. p. 392, 1830, was synonymised with Corythopis calearata Wied, by Dr. Sclater in the Catalogue of the Birds in the British Museum, xy. p. 335. It has priority over that species. Pucheran in the Archiv. Mus. Paris, vii. p. 374, 1855, made this determination, and Ménégaux & Hellmayr (Bull. du Mus. d’Hist. Nat. Paris, 1905, p.377) have confirmed it, though the description does not agree at all well. They continued Wied’s name, however, but Lesson’s must be used. They also give the locality as Rio de Janeiro from the label on the specimen. Corythopis nigrocincta Orb. et Lafr. Syn. Av. p. 13, 1837 (Prov. Chiquitosensi, Bolivia) ; Mag. de Zool., Ois. 1831-38 ; d’Orb, Voy. S. Amer., Aves, p. 187, pl. vi. fig. 2, is obviously the same bird as C. delalandi. It was placed as a footnote by the late Dr. P. L. Sclater, Cat. B. Brit. Mus. xv. p. 335, with the following remark :—‘‘ I only know this bird from the de- scription and figure of d’Orbigny. It is probably not different from C. anthoides.” Ménégaux & Hellmayr had already come to this conclusion when examining the types of this group in the Paris Museum (¢/r. Bull. du Mus. d’Hist. Nat. 1905, p. 377). Family FORMICARIIDA. This family, which is composed of many peculiar and varied forms, has two characters which may be observed throughout the whole of the genera, viz., the sharply hooked bill, which resembles that of the Shrikes or Butcher-birds of the Old World, and the fluffy feathers on the back. At the time when Brabourne and Chubb published their ‘ List of the Birds of South America’ it consisted of thirty-eight genera and about three hundred and seventy species, most of which occurred in South America; twenty-two of the genera and fifty-one of the species were represented in British Guiana. 6 BIRDS OF BRITISH GUIANA. Genus CYMBILAIMUS Gray. Cymbilaimus Gray, List of Gen. p. 36, 1840. Type C. lineatus (Leach). Fig. 4.—Cymbilaimus lineatus. This genus is distinguished by the banded plumage, which occurs in both male and female, the male having white bands and the crown of the head black, while the female has pale buff bands, which are much wider on the under surface, and the crown of the head chestnut. The bill is sharply hooked on the upper mandible and the under mandible is toothed. The wing is rounded, the fourth and fifth primary-quills longest and the third about equal to the sixth. The tail is also rounded and much graduated, the outer feathers on each side only slightly more than half the length of the middle ones. BANDED BusH-SHRIKE. Lanius lineatus Leach, Zool. Mise. i. p. 20, pl. 6, 1814 (Berbice). Cymbilanius lineatus Salvin, Ibis, 1585, p. 423 (Bartica Grove, Cama- cusa); Sclater, Cat. B. Brit. Mus. xv. p. 178, 1890 (British Guiana ). Cymbilaimus lineatus Brabourne & Chubb, B. S. Amer. i. p. 186, no. 1854, 1912. Adult male. General colour above black, narrowly banded with white, the black interspaces being very much wider than the white cross-bands ; crown of head black, minutely barred with white ; entire under surface regularly barred with black and white ; primary and secondary quills not barred on the inner webs, but slightly toothed on the edges. Total length 177 mm., culmen 32, wing 82, tail 72, tarsus 25, The bird from which the description is taken was collected on the Bonasika River, 1911. Adult female. Ditters from adult male in having the crown of the head chestnut, the remainder of upper parts umber-brown CYMBILAIMUS.—MACKENZIANA. 7 barred with buff, and the underparts buff narrowly barred with dark brown. Wing 78 mm. Breeding-season. Unknown in British Guiana, Nest. Unrecorded in British Guiana. Eggs. Undeseribed from British Guiana. Range in British Guiana. Ituribisi River, Supenaam River, Bartica, Kamakabra River, Bonasika River, Abary River, Mazaruni River, Arwye Oreek, Tiger Creek, Great Falls Demerara River (MeConnell collection) ; Berbice (Leach) ; Kamakusa ( Whitely). Extralimital Range. Surinam, East Ecuador. Habits. Unrecorded in British Guiana. [ Mackenz12na Chubb. Mackenziena Chubb, Ann. & Mag. Nat. Hist. (9) 1. 1918, July 1, p- 123. Type I. leachi (Such). ; Vif i ‘Ara My f Fig. 5.—Mackenziena leachi. Reichenbach, in 1850, proposed the generic name Visius and gave a figure in his Av. Syst. Nat. Vig. pl. Ixxi., which has been 8 BIRDS OF BRITISH GUIANA. associated by previous authors with Thamnophilus leachi Such, as the type; but, when one compares that bird with the figure, it will be easily seen that Reichenbach could not have intended it, as the bill is not anything likeit. The species was originally, and has for many years been, placed in the genus Thamnophilus Vieillot, where it was equally out of place, as it is so entirely different from that genus, which was founded on Lanius doliatus Linn. I have pro- posed, therefore, the new generic title Mackenziena, with the following characters:—Head not crested, no concealed white dorsal patch, tail much longer than wing. Bill short and stout, the depth about two-thirds the length of the exposed culmen ; the wing, which is shorter than the tail, has the fifth primary longest ; the tail is rounded and much graduated, the two middle feathers longest. Coloration: the male is black with ovate white spots and bars to the feathers, and the female is brown marked with buff. This genus is named in honour of Mrs. Helen Mackenzie McConnell. | FREDERICKENA Chubb. Frederickena Chubb, Ann. & Mag. Nat. Hist. (9) i. 1918, July 1 p. 123. Fig. 6.—Frederickena viridis. The chief characters of this genus are the nuchal erest, which is composed of rather broad feathers with rounded tips; no con- cealed white dersal patch ; the bill is short and stout, the depth being about half the length of the exposed culmen ; the wings are rounded, the fourth, fifth, and sixth primaries sae and sub- equal, the seventh is between the third and fourth; the tail, which is also rounded and graduated, is about two-thirds the length of the wing. Coloration: the male is almost uniform, but the female has the tail and entire under surface barred. FREDERICKENA. 9 Type F. viridis (Vieill.). This genus is named in honour of Frederick Arthur, the eldest surviving son of Mrs. McConnell. 353. Frederickena viridis. CRESTED BuSH-SHRIKE. Thamnophilus viridis Vieill. N. Dict. @Hist. Nat. iii. p. 318, 1816 (Cayenne); Brabourne & Chubb, B. 8. Amer. i. p. 187, no. 1861], 1912. Thamnophilus fuliginosus Gould, P. Z. S. 1837, p. 80 (British Guiana) ; Sclater, Cat. B. Brit. Mus. xv. p. 183, 1890 (Bartica Grove, Camacusa). Thamnophilus lunulatus Salvin, Ibis, 1885, p. 423 (Bartica Grove, Camacusa). Adult male. General colour above and below dark slate-grey; top of head, sides of face, and throat black. Total length 200 mm., exposed culmen 23, wing 98, tail 76, tarsus 35. The bird described was obtained on the Supenaam River, 1911. Adult female. Differs from the adult male in being chestnut- brown above, becoming dark chestnut on the head and sides of face, and the entire under surface blackish barred with white. Total length 200 mm., exposed culmen 23, wing 90, tail 63, tarsus 35. The bird described was collected on the Ituribisi River, Feb. 1907. Young male. Similar to adult female, but differs in being darker above, and most of the feathers have indications of blackish cross- bars to the feathers on the back, and mottlings and semicircular crescent-shaped marks at the tips of the inner secondaries. The under surface similar to the female but much darker, especially on the abdomen. The nestling. General colour above chocolate-brown with pale edgings to the feathers, which give the appearance of cross-bars on the back and tail ; Hight-quills blackish brown on the inner webs ; under surface buff with dark brown ecross-bars, base of feathers whitish. Breeding-season. Unknown in British Guiana. Nest. Unrecorded in British Guiana. Eggs. Undescribed from British Guiana, 10 BIRDS OF BRITISH GUIANA. Range in British Guiana. Ituribisi River, Supenaam River, Bartica, Bonasika River, Makauria River (AfceConnell collection) ; Bartica, Kamakusa ( Whitely). Extralinital Range. Cayenne (Vieillot), Venezuela. Habits. Unrecorded in British Guiana. Genus TARABA Less. Taraba Lesson, Traité d’Ornith. p. 375, 18381. Type 7. major (Vieill.). Fig. 7.—Taraba major. This genus is characterized chiefly by the short and incon- spicuous crest. A dorsal white patch. The bill somewhat long and compressed, the depth about half the length of the exposed culmen. Wing rounded, the fourth primary longest, the third about equal to the seventh. Tail also rounded and graduated, the two middle feathers longest and nearly equal in length to that of the wing. Coloration: the male is black above and the female rufous, but both are white on the under surface. 354. Taraba semifasciata. Para BusH-SHRIKE. Thamnophilus semifasciatus Cab. J. f. O. 1872, p. 234 (Para) ; Brabourne & Chubb, B. 8. Amer. i. p. 187, no. 1865, 1912. Thamnophilus major (nec Vieill.) Cab. in Schomb. Reis. Guian. ii. p. 687, 1848; Salvin, Ibis, 1885, p. 423; Sclater, Cat. B. Brit. Mus. xv. p. 186 (part), 1890 (Takutu River, Quonga). Adult male. General colour above black with white bases to the feathers of the upper back and grey bases to those of the lower back ; upper wing-coverts edged with white at the tips; primary and secondary quills blackish with white edges to inner webs; tail TARABA.—THAMNOPHILUS. 11 black, with white tooth-like marks on the inner webs of the feathers ; tips of upper tail-coverts and tips of tail-feathers also white; entire under surface, including the under wing-coverts, white, more or less grey on the flanks. Total length 200 mm., culmen 25, wing 91, tail 76, tarsus 32. Adult female. Differs from the adult male in having the head, back, wings, and tail chestnut-brown. Total length 185 mm., culmen 25, wing 88, tail 74, tarsus 32. Breeding-season. Unknown in British Guiana. Nest. Unrecorded in British Guiana. Eggs. Undescribed from British Guiana. Range in British Guiana. Ituribisi River, Supenaam River, Bartica, Bonasika River, Abary River (J/cConnell collection) ; Takutu River, Quonga River ( Whitely). Extralimital Range. North Brazil (Para, Cabanis), Trinidad, Venezuela. Habits. Schomburgk states (Reis. Guian. ili. p. 687) that he often found this bird in bushes on the outskirts of woods as well as in dense woods in the neighbourhood of rivers. It is a very wary bird, and at the slightest sign of danger hides itself in the thickest of bushes. Genus THAMNOPHILUS Vieill. Thamnophilus Vieillot, Anal. nouy. Ornith. p. 40,1816. Type TZ. doliatus (Linn.). Fig. 8.—Thamnophilus doliatus. The chief characters that constitute this genus are the large crest, which is composed of white feathers with black tips. The concealed dorsal white patch. The bill is short and stout, the depth being about one third the length of the exposed culmen. Wing almost 12 BIRDS OF BRITISH GUIANA. el square, the secondary-quills being nearly equal to the primaries in length, the fourth and fifth primaries longest, the third about equal to the seventh. Tail rounded, the two middle feathers longest and about six-sevenths the length of the wing. Colora- tion: the male is black banded with white, and the female almost entirely rufous both above and below. 355. Thamnophilus doliatus. WHITE-BARRED BusH-SHRIKE. Black and White Butcher-bird, Edwards, Gleanings of Nat. Hist. 1. p. 35, pl. 226, 1758 (Surinam). Lanius doliatus Linn. Syst. Nat. i. p. 1386, 1766 (Guiana). Thamnophilus doliatus Cab. in Schomb. Reis. Guian. iii. p. 687, 1848 ; Salvin, Ibis, 1885, p. 424; Sclater, Cat. B. Brit. Mus. xv. p. 207, 1890 (Georgetown); Quelch, Timehri (2) v. p. 93, 1891 (George- town); Brabourne & Chubb, B. 8. Amer. i. p. 191, no. 1908, 1912. “ Check-bird”? (Quelch). Adult male. General colour both above and below black barred with white ; crown of head white with ovate black tips to the feathers ; forehead, throat, sides of face, and hind-neck black with white fringes to the feathers, which impart a streaked appear- ance ; flight-quills and tail-feathers black, with white marks on the marginal portion of both webs but not continued across the feathers. Total length 154 mm., culmen 20, wing 72, tail 61, tarsus 28. The specimen from which the description is taken was collected on the Bonasika River. A young male, from the same locality, differs from the adult in having the flight-quills marked with rufous and the primary- coverts margined with the same colour, the upper tail-coverts tipped with rufous, and the lower abdomen and flanks tinged with ochreous. Immature male. Rufous-brown above, with paler cross-bars to the more advanced feathers, which are dark brown on the sides of the upper back; upper wing-coverts dark brown margined with rufous; flight-quills dark brown, marked with rufous or pale buff on the margins ; tail-feathers similar to those of the adult, with a tinge of rufous at the tips; a few black feathers on the top of the head ; under. surface ochreous-white with dark brown cross-bars to the feathers. THAMNOPHILUS. 13 The bird from which the description is taken was collected on the Makauria River. Adult female. General colour above bright rufous; primary and secondary quills brown on the inner webs and margined with cinnamon ; crown of head somewhat darker than the back ; sides of face and nape brown with white, or buffy-white margins to the feathers; chin and throat whitish, with dark shaft-lines and tinged with buff; breast, abdomen, and under tail-coverts orange-buff ; under wing-coverts and quill-lining cinnamon. Wing 75 mm. The description is taken from an example collected on the Abary River in September 1906. Immature female. Differs from the adult in having dark obsolete bars on the feathers of the back and dark subapical spots on the upper wing-coverts, in the absence of the dark streaks on the throat and sides of the face and the nuchal collar. Breeding-season. Unknown in British Guiana, Nest. Unrecorded in British Guiana. Eggs. Undescribed from British Guiana. Range in British Guiana. Takutu Mountains, Ituribisi River, Supenaam River, Bartica, Bonasika River, Makauria River, Abary River (McConnell collection) ; Georgetown (Quelch). Extralimital Range. Northern Brazil, Colombia, Venezuela, Trinidad. FHlabits. Schomburgk’s remarks on this species (Reis. Guian. iii. p- 687) are a8 follows :—This is one of the commonest birds near the coast. Its favourite haunts are the Avicennien bushes and the damp virgin forest. It is a very lively and restless bird, always moving about and creeping easily through the densest bush. ‘The male and femaie are always together. When it is excited it always raises the feathers on the crown. The Warraus call it * Dobenakuh,’ and the Macusis call it “ Aubarih.” Mr. J. J. Quelch, writing on the birds observed at Georgetown (Timehri (2) v. p. 93), remarks :—The large group of American 3ush-Shrikes and Ant-Thrushes which, as a rule, are confined to the dense forest ; but there is one large and typical species that occurs, and by no means sparsely, which is known as the Check- bird (Thamnophilus doliatus). The Check-bird, like the members of the family generally, has a strong hooked Shrike-like bill, with which it can protect itself even against the birds of prey, which it attacks and pursues with a loud harsh cry. It feeds upon insects 14 BIRDS OF BRITISH GUIANA. generally, larvee and ants included. It is a lively bird, constantly on the move, uttering a by no means pleasing cry, made up of a succession of harsh and loud sounds, like the other songless birds generally. Genus SAKESPHORUS Chubb. Sakesphorus Chubb, Ann. & Mag. Nat. Hist. (9) ii. 1918, July 1, p. 1238. Pro Hypolophus Cabanis & Heine, 1859, nec Miiller & Henle, 1837. Type H. canadensis (Linn.). Fig. 9.—Sakesphorus canadensis. The chief characters of this genus are the long and conspicuous crest, which is black in the male and rufous in the female, the absence of a concealed white dorsal patch, the somewhat small bill, the depth about one third the length of the exposed culmen, the almost square wing, the third, fourth, fifth, sixth, and seventh primaries longest, the second primary about equal to the ninth, the rounded tail—the two middle feathers longest, being about six tenths the length of the wing. 356. Sakesphorus canadensis. BLACK-CRESTED BUSH-SHRIKE. Lanius canadensis Linn. Syst. Nat. i. p. 134, 1766 (Cayenne). Thamnophilus cirrhatus (Gmel.) Cab. in Schomb. Reis. Guian. iii. p. 687, 1848; Sclater, Cat. B. Brit. Mus. xv. p. 202, 1890 (Quonga). a Thamnophilus atricapillus Salvin, Ibis, 1885, p. 423 (British Guiana). Thamnophilus canadensis Brabourne & Chubb, B. 8. Amer. i. p. 190, no. 1900, 1912. Adult male. Head, sides of face, and throat uniform black, upper back smoke-brown, becoming grey on the rump; upper SAKESPHORUS. 15 wing-coverts black tipped, or edged with white; quills blackish brown, with pale outer webs to the primaries and white edgings to the innermost secondaries; edges to the inner webs of both primary and secondary quills.white ; upper tail-coverts and tail black tipped with white, with a white spot on the outer web of the outermost pair of tail-feathers and white edges to some of the middle feathers; abdomen, sides of breast, sides of body, and under tail-coverts pale slate-grey ; under wing-coverts white. Total length 143 mm., culmen 20, wing 76, tail 61, tarsus 25. Adult female. Differs from the male in having the crown of the head chestnut, the back rufous-brown, and the breast ochreous with black shaft-lines to the feathers. Wing 72 mm. Immature male. Very similar in colour to the female, but dis- tinguished partly by its black crest and also by the approach of black feathers on the throat. The male and female birds described were collected at Bartica in 1911, and the immature male on the Abary River, July 1906. Breeding-season. Unknown in British Guiana. Nest. Unrecorded in British Guiana. Eggs. Undeseribed from British Guiana. Range in British Guiana. Upper Takutu Mountains, Ituribisi River, Supenaam River, Bartica, Bonasika River, Abary River, Anarica River (McConnell collection); Quonga, Annai, Rupunini River (Whitely). Extralimital Range. Cayenne (Linné), Trinidad, Venezuela. Halits. Schomburgk states (Reis. Guian. iii. p. 687) that this bird was fond of the Avicennien-bush near the coast, and that its life and habits are similar to those of Thamnophilus major, p. 10. Latham, in his ‘General Synopsis, ii. pt. i. p. 83, writes :— “These inhabit Cayenne, where they breed several times in a year, and lay three eggs at a time. Their cry is like that of a young chicken, Feeds on ants.” *16 BIRDS OF BRITISH GUIANA. Genus ERIONOTUS Cab. & Hein. Erionotus Cabanis & Heine, Mus. Hein. ii. p. 15, 1859. Type E. ceru- lescens (Vieill.). Fig. 10.—Erionotus punctatus. This genus is distinguished by its small size and inconspicuous crest. The bill is small, the length of the exposed culmen three times that of its depth. The wing is rounded, the fourth, fifth, and sixth primaries longest, the third ranges between the eighth and ninth in length. ‘Tail also rounded, the two middle feathers longest, being about five-tenths the length of the wing. Colora- tion: the male for the most part slate-grey with black on the crown of the head, wings, and tail ; the female rufous on the top of the head, tail, and outer aspect of the wing. Key to the Species. A. Smaller, wing less than 72 mm. a. General colour pale slate-grey; upper tail-coverts tipped with white......... E. punctatus 3, p.17. a'. Throat, fore-neck, and _ breast ochreous grey; crown of head TOfOUS .,..Ucsedaparsewadeteiteneys i uh. peers. oo, age 6. General colour dark slate-grey ; upper tail-coverts not tipped with white... H. amazonicus 3, p. 18. 6’. Crown of head, throat, fore-neck, and breast bright ferruginous...... EE. amazonicus 2, p. 18. B. Larger, wing more than 72 mm. ce. General colour for the most part black including the crown and nape......... E. insignis 8, p. 19. e'. Crown of head and nape deep chest- MUN ake asinive ous 0% avant CARO EN SUR RRN Wp. Mle mane inniE LO, ERIONOTUS. 1% 357. Erionotus punctatus. SrorreD BusH-SHRIKE. Lanius punctatus Shaw, Gen. Zool. vii. 2, p- 327, 1809 (Cayenne). Thamnophilus nevius Cab. in Schomb. Reis. Guian. iii. p. 687, 1848 ; Salvin, Ibis, 1885, p. 423 (Roraima, 3500 ft.); Sclater, Cat. B. Brit. Mus. xv. p. 197, 1890 (Quonga), Thamnophilus punctatus Brabourne & Chubb, B. S. Amer. i. p. 189, no. 1883, 1912. Adult male. Crown of head, mantle, wings, and tail black, with white bases to the feathers on the mantle, white tips to the upper wing-coverts and edges of the primary and secondary quills ; the upper tail-coverts and tail-feathers tipped with white and a white spot on the outer web of the outermost pair of tail-feathers ; inner edges of primary and secondary quills white towards the base ; iower back very dark slate-grey ; under surface from the throat downwards slate-grey, tips of under tail-coverts inclining to whitish ; under wing-coverts white. Total length 135 mm., culmen 16, wing 67, tail 55, tarsus 19. Adult female. Quite different from the male ; sides of face and back mouse-brown; the under surface similar but somewhat paler ; crown of head tawny; long upper tail-coverts and middle tail-feathers similar but darker, the lateral feathers inclining more or less to blackish, with white tips and a white spot on the outer edge of the outermost feathers ; upper tail-coverts tipped with white; upper wing-coverts brown edged with white, as are also the innermost secondaries; the outer edges of the quills olive- brown. Total length 133 mm., exposed culmen 17, wing 65, tail 53, tarsus 19. Immature male. Shows scarcely any black on the upper surface, which is pale slate-colour as well as the under surface, both of which are tinged with an olive wash. Of the birds described, the male was collected on the Anarica River, 1913, the female on the Abary River in September 1906, and the young male on the Ituribisi River in February 1907. Breeding-season. Unknown in British Guiana. Nest. Unrecorded in British Guiana, Eggs. Undescribed from British Guiana, ' Range in British Guiana. Mount Roraima, Upper Takutu Mountains, Ituribisi River, Supenaam River, Abary River, Great VOL, Il. Cc 18 BIRDS OF BRITISH GUIANA. Falls Demerara River, Tiger Creek Essequibo River, Anarica River (McConnell collection). Metralimital Range. Surinam (Penard), Venezuela and North Brazil. Habits. Schomburgk states (Reis. Guian. iii. p. 687) that he found this species near the coast and in the neighbourhood of Mount Roraima, and it appeared to him to be generally distributed throughout the colony. 358. Erionotus amazonicus. ScLATER’s AMAZONIAN BUSH-SHRIKE. Thamnophilus amazonicus Sclater, P. Z.S. 1858, p. 214, pl. 139. figs. 1, 2 (East Peru); id. Cat. B. Brit. Mus. xv. p. 199, 1890 (Bartica Grove, Camacusa, Takutu River); Brabourne & Chubb, B.S. Amer. i, p. 189, no. 1889, 1912. Thamnophilus ruficollis Cab. in Schomb. Reis. Guian. iii. p. 687, 1848 ; Salvin, [bis, 1885, p. 423 (Camacusa, Bartica Grove); Oates, Cat. Birds’ Eggs Brit. Mus. iii. p. 167, pl. iu. fig. 2, 1903. Adult male. General colour above and below slate-grey, some- what paler on the under surface, the feathers on the head and upper back centred with black, the latter having white bases ; upper wing-coverts black edged with white; primary and secondary quills blackish with white on the outer edges ; upper tail-coverts and tail-feathers black tipped with white; inner edges of primary and secondary quills also white. Total length 1382 mm., exposed culmen 15, wing 65, tail 54, tarsus 21. The bird deseribed was collected on the Kamakabra River, 1911. Adult female. Head and entire under surface rufous, brighter on the head and paler below; back olive-brown with slate-colour bases to the feathers and concealed white spots; upper. wing- coverts blackish with white edges ; primary and secondary quills dark brown, with pale edges on the outer and inner webs; upper tail-coverts and middle tail-feathers rufous-brown, the former tipped with white, the outer tail-feathers darker and more broadiy tipped on the outermost, which has a white spot on the outer web; under wing-coverts pale buff. Wing 65 mm. The female described was collected on the Ituribisi River in August f909. Breeding-season. Unknown in British Guiana. Nest. Unrecorded in British Guiana. ERIONOTUS. 19 Eggs. The eggs of this species in the British Museum are of an extremely narrow oval form, and moderately glossy. They are creamy white, mottled, more densely at the broad end than else- where, with reddish brown and lilac. Two examples measure respectively: 1:04 by 0°65, 1:08 by 0°65 ( jide Oates, Cat. Birds’ Eggs Brit. Mus. ili. p. 167). Range in British Guiana. Upper Takutu Mountains, Ituribisi River, Bartica, Kamakabra River, Bonasika River, Abary River, Arwye Creek, Tiger Creek Hssequibo River, Great Falls Deme- rara River (McConnell collection); Bartica, Kamakusa, Takutu River ( Whitely). Extralimital Range. Surinam (Penard), Northern Brazil, East Peru. Habits. According to Schomburgk (Reis. Guian. iii. p. 687) this bird is common in the woods near the coast, where it enlivens the low bush. 359. Erionotus insignis. Roratma Busa-SHrike. Thamnophilus insignis Salvin & Godman, Ibis, 1884, p. 450 (Mt. Roraima) ; Salvin, Ibis, 1885, p. 424 (Roraima, 5000 ft.) ; Sclater, Cat. B. Brit. Mus. xv. p. 199, pl. xiii., 1890 (Roraima) ; Brabourne & Chubb, B. 8. Amer. i. p. 190, no. 1891, 1912. Adult male. General colour above and below dark slate-grey ; crown of head including the crest black; upper back black with subterminal white spots on the feathers, like those on the bind- neck; wings also black, the feathers tipped or edged with white ; upper tail-coverts and tail black tipped with white, the outer pair of tail-feathers having a white spot on the outer webs ; the quills bordered on the outer web and edged on the inner web with white ; the under wing-coverts grey tipped with white. Total length 155 mm., exposed culmen 17, wing 76, tail 66, tarsus 25. | Adult female, Differs from the adult male in having an occipital crest of maroon-chestnut, the forehead black with grey and white tips to the feathers. Wing 76 mm. The birds described were collected by Mr. McConnell on Mount Roraima in October 1898. Breeding-season. Unknown in British Guiana. Nest. Unrecorded in British Guiana, Eggs. Undescribed from British Guiana, 20 BIRDS OF BRITISH GUIANA. Range in British Guiana. Mount Roraima (McConnell collec- tion); Mount Roraima, 5000 feet ( Whitely). Extralimital Range. Surinam (Penard). Habits. Unrecorded in British Guiana. Genus DYSITHAMNUS (ab. Dysithamnus Cabanis, Archiv fiir Naturg. xiii. pt.i. p. 223, 1847. Type D. guttulatus (Licht.). Fig. 11.—Dysithamunus qguttulatus. This genus has for many years been compared with and placed next to Thamnophilus, or those forms included under that name, neither of which appears to have any very close relationship. The present genus includes birds of small size and having no crest. The bill is small and sharply hooked—the exposed culmen being about three-fourths the length of the tarsus. The wing is rounded, the fourth, fifth, and sixth primaries longest, the third is shorter than the sixth but longer than the seventh. The tail is short and nearly square, the outer feather on each side being only about 3 mm. shorter than the middle ones. The DYSITHAMNUS. 2h feet are slender and weak. Coloration: the male and female differ in colour of plumage. Key to the Species. A. Throat lead-grey like the rest of the under surface in the male. a. Crown of head dark lead-grey ; lesser upper wing-coverts blackish ......... D. spodionotus, 3, p. 21. a’. Crown of head rufous; back rufous- brown; middle of abdomen white. D. spodionotus, 9, p: 22. b. Crown of head pale lead-grey; lesser upper wing-coverts also grey ......... D. murinus, 3, p. 22. 6’. Crown of head dull rufous; back ochreous-brown; middle of abdo- men isabelline ......... . D. murinus, 9, p. 23. B. Throat black in contrast to the grey under surface in the male ............... D. saturninus, 3, p. 23. ec. Crown of head ochreous-brown like the back; middle of the abdomen fawn- colour dic ashi ata peer eae ees . D. saturninus, 9, p. 23. 360. Dysithamnus spodionotus. ASHY-BACKED BUSH-BIRD. Dy ysithamnus spodionotus Salvin & Godman, Ibis, 1883, p.211 (Roraima); Salvin, Ibis, 1885, p. 424 (Roraima, 3500 ft.); Sclater, Cat. B. Brit. Mus. xv. p. 222, 1890 (Roraima) ; Brabourne & Chubb, B. S. Amer. i. p. 194, no. 1941, 1912. Adult male. General colour above dark slate-colour, darker and inclining to black on the head ; upper wing-coverts black edged with white ; primary and secondary quills dark brown, edged with slate-grey on the outer webs ; tail black, fringed with white at the tip ; under surface for the most part ash-grey, darker and more slate-grey on the sides of the body. Total length 105 mm., exposed culmen 17, wing 64, tail 35, tarsus 20, The male from which the description is taken was collected on the Makauria River in August 1910. Immature male, Differs from the adult male in having the upper surface olive-brown with a tinge of chestnut on the head ; throat pale ash-grey, middle of abdomen white ; breast and sides of the body pale olive-brown; under tail-coverts pale fulvous ; under wing-coverts white, inner edge of quills below buffy-white. The young male described was collected by Mr. McConnell at Mount Roraima in October 1898. 22 BIRDS OF BRITISH GUIANA. Adult female. Fore part of head bright rust-colour which fades away on the nape into the olive-brown of the back ; outer aspect of the wings and tail’ more rufous-brown, inner webs of flight- quills dark brown with buffy-white edges ; breast and sides of the body ochreous-brown ; throat and middle of abdomen whitish ; under tail-coverts and edge of wing pale fulvous ; under wing- coverts white. Wing 62 mm. The female described was also collected by Mr. McConnell on Mount Roraima in October 1898. Breeding-season. Unknown in British Guiana. Nest. Unrecorded in British Guiana. Eggs. Undescribed from British Guiana. Range in British Guiana. Mount Roraima, Makauria_ River (McConnell collection) ; Mount Roraima, 3500 ft. ( Whitely). Extralimital Range. Surinam (Penard). Habits. Unrecorded in British Guiana. 361. Dysithamnus murinus. Movusk-coLouRED BUSH-BIRD. Thamnophilus murinus, Sclater & Salvin, P. Z.S. 1867, p. 756 (Marabi- tanas); Salvin, Ibis, 1885, p. 423 (Bartica Grove, Camacusa, Merumé Mts.); W. L. Sclater, Ibis, 1887, p. 318 (Maccasseema, Pomeroon River); Sclater, Cat. B. Brit. Mus. xv. p. 195, 1890 (Marakka, Takutu River). Dysithamnus murinus Brabourne & Chubb, B. S. Amer. i. p. 195, no. 1952, 1912. Adult male. General colour above, including the head, back, and tail, bluish slate-colour, with concealed white bases to the _ feathers on the back’; lesser upper wing-coverts edged with white, the greater coverts inclining to olive-brown and are also margined with white ; primary-coverts and quills dark brown, edged with olive on the outer webs and white on the inner webs of the latter, the inner secondaries are very narrowly edged with white at the tips ; tail-feathers tipped with white ; sides of face pale slate-grey with white shaft-lines to the feathers; middle of throat, middle of breast, and middle of abdomen dull white ; sides of neck, sides of body, flanks, thighs, and under tail-coverts slate-grey ; under wing-coverts white. Total length 134 mm., exposed culmen 17, wing 62, tail 51, tarsus 22. DYSITHAMNUS. 23 The bird described was collected on the Anarica River. Adult female. Differs from the adult male in being rust-brown above, brighter and inclining to chestnut on the head, the absence of the concealed white patch on the back, and the ochreous- brown on the underparts. Wing 61 mm. The description of the female is taken from a specimen collected on the Kamakabra River in 1911. Breeding-season. Unknown in British Guiana. Nest. Unrecorded in British Guiana. Eggs. Undescribed from British Guiana, Range in British Guiana. Lturibisi River, Supenaam River, Bartica, Kamakabra River, Bonasika River, Makauria River, Anarica River (McConnell collection); Bartica, Kamakusa, Merumé Mountains, Takutu River (Whitely); Marakka, Mac- casseema, Pomeroon River (W. L. Sclater). Extralimital Range. Cayenne, North Brazil, Venezuela, East Peru. Habits. Unrecorded in British Guiana. 362. Dysithamnus saturninus. SATURNINE BUSH-BIRD. Dysithamnus saturninus Pelz. Orn. Bras. p. 147, 1869 (Borba) ; Brabourne & Chubb, B. 8S. Amer. i. p. 195, no. 1954, 1912. Dysithamnus ardesiacus (nec Scl. & Salv.) Salvin, Ibis, 1885, p. 424 (Bartica Grove, Camacusa, Merumé Mts.) ; Sclater, Cat. B. Brit. Mus. xv. p. 225 (part), 1890 (Roraima, Takutu River). Thamnomanes glaucus (nec Cab.) W. L. Sclater, Ibis, 1887, p. 318 (Marakka). Adult male. General colour above bluish slate-colour, including the head, back, wings, and tail ; inner webs of flight-quills dark brown with pale edges; tail similar to the back, narrowly margined with white at the tip ; throat black ; breast and sides of the body slate-colour somewhat paler than the back; the abdomen and under tail-coverts with more or less white intermixed like the under wing-coverts. Total length 130 mm., exposed culmen 16, wing 71, tail 48, tarsus 19. The male described was collected on the Ituribisi River in October 1908. Immature male. Differs from the adult male in having the 24 BIRDS OF BRITISH GUIANA. remains of rusty-brown on the wings and under tail-coverts and the throat grey instead of black. Adult female. Upper surface rufous-brown; inner webs of flight-quills dark brown edged with cinnamon-buff ; throat whitish tinged with buff; breast pale rafous-brown, becoming bright rufous on the lower abdomen, under tail-coverts, and under wing- coverts. Wing 70 mm. The female described was collected on the Kamakabra River. Breeding-season. Unknown in British Guiana. Nest. Unrecorded in British Guiana. Eggs. Undescribed from British Guiana. Range in British Guiana. Ituribisi River, Supenaam River, Bartica, Kamakabra River, Bonasika River, Great Falls‘ Demerara River, Arwye Oreek (McConnell collection) ; Bartica, Kamakusa, Merumé Mountains, Mount Roraima, Takutu River ( Whitely) ; Marakka (W. ZL. Sclater). Eetralimital Range. Cayenne (British Museum), Venezuela, Central Brazil. Fflabits. Unvecorded in British Guiana. Genus THAMNOMANES Cab. Thamnomanes Cabanis, Archiv fiir Naturg. xiii. pt. i. p. 230, 1847. Type T. cestus (Licht.). Mm Fig. 12.—Thamnomanes cesius. Head not crested, but a concealed white dorsal patch is present. Bill sharply hooked, somewhat broad at the base, and profusely furnished with rictal bristles; the exposed culmen is about 16 mm. and ‘about equal to the tarsus in length. Wing rounded, the fourth, fifth, and sixth primaries longest, the third shorter than the sixth and longer than the seventh. In the type of the genus THAMNOMANES. 25 the wing only slightly exceeds the length of the tail. Tail graduate and rounded, the six middle feathers longest and subequal. Feet stronger and stouter than in Dysithamnus. The male and female differ in colour of plumage. 363. Thamnomanes glaucus. NorTHERN CINEREOUS BUSH-BIRD. Thamnomanes glaucus Cab. Arch. fiir Naturg. 1847, p. 230 (Cayenne) ; id. in Schomb. Reis. Guian. i. p. 688, 1848; Salvin, Ibis, 1885, p. 424 (Bartica Grove, Camacusa) ; Sclater, Cat. B. Brit. Mus. xv. p- 227, 1890 (Mirakka, Camacusa, Bartica Grove); Brabourne & Chubb, B. S. Amer. 1. p. 196, no. 1959, 1912. Adult male. General colour above and below dark slate-colour, with concealed white bases to the feathers on the upper back ; the flight-quills dark brown, with pale edges on the inner webs ; the outermost pair of tail-feathers slightly edged with white ; under wing-coverts grey; under tail-coverts fringed with pale grey at the tips. Total length 130 mm., exposed culmen 16, wing 73, tail 57, tarsus 17. The male bird described was collected at Bartica in 1911. Adult female. General colour above cinnamon-brown inclining to rufous-brown on the wings and tail, with concealed white bases to the feathers of the upper back ; inner webs of flight-quills dark brown, edged with pale rufous on the inner webs; throat dusky- white ; breast dusky-brown ; abdomen, flanks, under tail-coverts, and under wing-coverts bright rufous. Total length 138 mm., culmen 18, wing 65, tail 61, tarsus 16. The female described was also collected at Bartica in 1911. Breeding-season. Unknown in British Guiana. Nest. Unrecorded in British Guiana. Fggs. Undescribed from British Guiana. Range in British Gwana. Ituribisi River, Supenaam River, Bartica, Kamakabra River, Makauria River, Berbice River, Anarica River ((cConnell collection) ; Bartica and Kamakusa (Whitely). Extralimital Range. Surinam (Penard), Cayenne (Cabanis), Venezuela, Ecuador, and Peru. /labits. Unrecorded in British Guiana. 26 BIRDS OF BRITISH GUIANA. Genus MYRMOTHERULA Scl. Myrmotherula Sclater, P. Z. S. 1858, p. 234. Type IL pygmea (Gmel.). Fig. 13. a7 ae ula pygmed. The type of this genus is conspicuous by its small size, the absence of a crest, the small and slender bill which is sharply hooked, the rounded wing, the third, fourth, and fifth primaries longest, and the second about equal to the seventh, the tail short and rounded, longer than the culmen but shorter than the tarsus. Male and female different in colour. Key to the Species. A. Abdomen uniform yellow, throat white. IZ. pygmea, 3, p. 26. a. Throat yellowish ‘buff. ; M. pygmea, 2, p.27. B. Abdomen’ and throat white ‘profusely streaked with black ..........c.csceceees MM. surinamensis, 3, p. 27. b. Throat and abdomen pale fawn-colour sparsely streaked ........:....0..0006. IL surinamensis, 9, p. 28. 364. Myrmotherula pygmea. Pyomy ANT-BIRD. Muscicapa pygmea Gmel. Syst. Nat. i. p. 933,°1789 (Cayenne). Formicivora pygmea Cab. in Schomb. Reis. Guian. iii. p. 688, 1848. Myrmotherula pygmea Salvin, Ibis, 1885, p. 425 (Bartica Grove, Camacusa); Sclater, Cat. B. Brit. Mus. xv. p. 231, 1890; Bra- bourne & Chubb, B. S. Amer. 1. p. 196, no. 1961, 1912. Adult male. General colour of the upper surface black, the feathers edged with white or sulpbur-yellow, narrowly on the head, hind-neck, and outer webs of primary and secondary quills, and more broadly on the upper wing-coverts ; rump and upper MYRMOTHERULA. 27 tail-coverts dusky without any pale margins to the feathers ; tail- feathers slightly margined with whitish or sulphur-yellow ; a rather broad white streak below the eye; chin and throat white; sides of the face and sides of the breast similar to the back ; middle of the breast, abdomen, under tail-coverts, sides of the body, and under wing-coverts yellow. Total length 61 mm., exposed culmen 13, wing 38, tail 16, tarsus 17. Adult female. Similar to the adult male, but differs in having the chin, throat, and upper breast yellowish buff, and the feathers on the sides of the face and the top of the head edged with the same colour. Wing 41 mm. The male and female described were collected on the Supenaam River. Breeding-season. Unknown in British Guiana. Nest. Unrecorded in British Guiana. Eggs. Undescribed from British Guiana. Range in British Guiana. Supenaam River (McConnell epllecitonks Bartica, Kamakusa ( Whately). Extralimital Range. Surinam (Penard), Cayenne (Gmelin), Northern Brazil, Colombia, Ecuador, Peru. Halits. According to Schomburgk (Reis. Guian. ili. p. 688) this bird lives in low brush on the outskirts of the woods, in the fields cultivated by the natives, and in the neighbourhocd of rivers. 365. Myrmotherula surinamensis. Surinam ANT-BIRD. Sitta surinamensis Gmel. Syst. Nat. i. p. 442, 1788 (Surinam). Formicivora quadrivittata Cab. in Schomb. Reis. Guian. 111. p. 688, 1848. Myrmotherula surinamensis Salvin, Ibis, 1885, p. 425 (Camacusa) ; Sclater, Cat. B. Brit. Mus. xv. p. 231, 1890 (Takutu River, Cari- mang River); Brabourne & Chubb, B. 8. Amer. i. p. 196, no. 1962, 1912. Adult male. General colour of the upper surface black with white tips and edgings to the feathers, narrower on head, hind- neck, flight-quills, and tail-feathers, and broader on the upper back, where the bases of the feathers are white, and the upper wing-coverts; sides of lower back and rump lead-grey ; sides of face and under surface white with narrow black shaft-streaks to the feathers, the white portion inclining to grey on the sides of 28 BIRDS OF BRITISH GUIANA. the breast and sides of the body ; under wing-coverts and inner edges of the quills white. Total length 90 mm., exposed culmen 15, wing 58, tail 25, tarsus 16, Adult female. Differs from the adult male in having the crown of the head and hind-neck bright rufous, streaked with black on the occiput and hind-neck, becoming paler on the sides of the tace, much paler and inclining to white on the throat; remainder of the under surface almost uniform dull white. Exposed culmen 14 mm., wing 49. The male and female described were collected on the Supenaam River. Breeding-season. Unknown in British Guiana. Nest. Unrecorded in British Guiana. Eggs. Undescribed from British Guiana. Range in British Guiana. Ituribisi River, Supenaam River, Kamakabra River, Bonasika River, Makauria River, Great Falls Demerara River, Arawai River, Anarica River (McConnell collec- tion); Kamakusa, Kamarang River, Takutu River ( Whitely). Extralimital Range. Surinam (Gmelin, Penard), Cayenne (British Museum), Venezuela. Halits. Schomburgk states (Reis. Guian. iii. p. 688) that this bird lives in the low brush on the outskirts of the woods, in the fields cultivated by the natives, and in the neighbourhood of rivers. Genus RHOPIAS Cab. & Hein. Rhopias Cabanis & Heme, Mus. Hein. ii. p. 18, 1859. Type Pe. gularis (Spix). ‘ Fig. 14.—Rhopias gularis. The members of this genus are distinguished at sight in having RHOPTAS. 29 the throat black, or dark brown, spotted with white. The bill is small and slender. The wing is rounded, the fourth, fifth, and sixth primary-quills longest, the third about equal to, or very slightly shorter than, the seventh. The tail is short and very slightly rounded, and measures about four-fifths the length of the wing and about three times the length of the exposed culmen. Male and female similar in colour in the typical species, but differ in some of the others. 366. Rhopias gutturalis. BrROWN-BELLIED ANT-BIRD. Myrmotherula gutturalis Sclater & Salvin, Ibis, 1881, p. 269 (Bartica Grove) ; Salvin, op. cit. 1885, p. 425 (Merumé Mts., R. Atapurau, Bartica Grove); Sclater, Cat. B. Brit. Mus. xv. p. 233, 1890 (Quonga); Brabourne & Chubb, B. 8. Amer. i. p. 197, no. 1969, 1912. Adult male. General colour of the upper surface olive-brown including the head, ear-coverts, back, wings, and tail ; upper wing- coverts tipped with white; primary and secondary quills hair-brown on the inner webs, which have pale margins; tail somewhat darker than the back and inclining to rufous-brown ; throat black, with white pear-shaped marks at the tips of the feathers ; sides of face and breast lead-grey; sides of the body, abdomen, and under tail-coverts olive-brown ; under wing-coverts isabelline buff. Total length 104 mm., exposed culmen 13, wing 50, tail 39, tarsus 16. Adult female. Differs from the adult male in being rufous-brown above, instead of olive-brown, and in the absence of the black and white throat-patch, the grey on the breast, and olive-brown abdomen—these parts being fulvous in the female. Wing 52 mm. The male and female birds described were collected on the Supenaam River in 1911. Breeding-season. Unknown in British Guiana. Nest. Unrecorded in British Guiana. Eggs. Undescribed from British Guiana, Range in British Guiana. Mount Roriama, Ituribisi River, Supenaam River, Anarica River, Arwye Creek (McConnell col- lection); Bartica, Merumé Mountains, Kamarang River, Quonga ( Whitely). Extralimital Range. Surinam (Penard). Habits. Unrecorded in British Guiana. 30 BIRDS OF BRITISH GUIANA. Genus MYRMOPAGIS Ridew. Myrmopagis Ridgway, Proc. Biol. Soc. Washington, xxii. April 17, 1909. Type IL. axillaris (Vieill.). Fig. 15.—Myrmopagis axillaris. This genus is easily distinguished by the long and, usually, white tlank-plumes which form a conspicuous patch on the sides of the body. The bill is slender. The wing is rounded, the fourth and fifth primaries longest, the third about equal to the sixth. The tail is comparatively long, being about three-fourths the length of the wing, rounded, and much graduated, the outer feather on each side being about two-thirds the length of the middle ones. ‘The male and female differ entirely in colour. 367. Myrmopagis axillaris. WHITE-FLANKED ANT-BIRD. Myrmothera axillaris Vieill. N. Dict. dHist. Nat. xii. p. 113, 1817 (Cayenne). Formicivora axillaris Cab. in Schomb. Reis. Guian. iii. p. 688, 1848. Myrmotherula axillaris Salvin, Ibis, 1885, p. 425 (Bartica Grove, Camacusa, Merumé Mts.); Sclater, Cat. B. Brit. Mus. xv. p. 238, 1890 (Takutu River) ; Beebe, Our Search for a Wilderness, p. 194, 1910 (Hoorie); Brabourne & Chubb, B.S. Amer. i. p. 198, no. 1982, 1o12. Adult male. General colour for the most part slate-grey, including the head, back, upper tail-coverts, sides of face, and sides of breast ; upper wing-coverts, bastard-wing, and primary- coverts black tipped with white, more broadly on the greater series ; primary and secondary quills dark brown, margined with white on the inner webs; tail blackish, with narrow white MYRMOPAGIS. 31 edges at the tips of the feathers; sides of the body, axillaries, under wing-coverts, and edge of wing silky-white ; throat, fore- neck, middle of breast and abdomen black; under tail-coverts aiso black fringed with grey. Total length 99 mm., exposed culmen 15, wing 52, tail 36, tarsus 15. The specimen from which the description is taken was collected on the Ituribisi River in February 1907. Adult female. Upper parts fulvous-brown including the head, back, and sides of the breast, becoming rufous on the wings and tail; inner webs of the primary and secondary quills dark brown, with cinnamon-buff edgings; throat whitish slightly tinged with buff ; breast and abdomen ochreous-buff, becoming deeper in colour on the under tail-coverts ; flanks white; under wing-coverts and inner edges of the quills below cinnamon-buff. Wing 49 mm. The female described was collected on the Makauria River. Breeding-season. Unknown in British Guianr. Nest. Unrecorded in British Guiana, Eggs. Undescribed from British Guiana. Range in British Guiana, Ituribisi River, Supenaam ‘Riv er, Bartica, Bonasika River, Makauria River, Abary River, Berbice River, Arwye Creek, Great Falls Demerara River, Arawai River, Tiger Creek Essequibo River, Anarica River (McConnell collec- tion); Bartica, Kamakusa, Merumé Mts., Takutu River ( Whitely); | Hoorie River (Beebe). Extralimital Range. Surinam {(Penard), Cayenne (Vieillot), Trinidad, Venezuela, North Brazil, Habits. Schomburgk states (Reis. Guian. iii. p. 688) that this bird lives in the low brush on the outskirts of the woods, in the fields cultivated by the natives, and in the neighbourhood of rivers. Mr. W. Beebe, in ‘Our Search for a Wilderness,’ p. 194, gives the following note :—“ One, a White-shouldered Pygmy Ant-bird, now flits ahead of us, tiny as a Wren, slate-colored, with white dots on the lesser coverts of the wings and a dotted bar across the wings. The flanks and under wings are white and although ordinarily concealed, yet the little fellow flirts his wings every second, thus flashing out the color, and making himself most con- spicuous. His call-note is low and inarticulate, but he occasionally lisps a pleasing little song: chu! chu! chuwee!” 32 BIRDS OF BRITISH GUIANA. Genus MYRMOPHILA Cab. & Hein. Myrmophila Cabanis & Heine, Mus. Hein. ii. p. 12, 1859. ‘Type A. minor (Salvadori). TA AY UTR A Le AWA BTL ANSE Pith Fig. 16.—yrmophila minor. In this genus the male has a uniform black throat. The bill is short and slender. The wing is rounded, the fifth primary longest, the fourth about equal to the sixth in length, the third between the seventh and eighth. The tail is proportionately long, being more than half the length of the wing. The sexes differ in colour of plumage. Key to the Species. A. Larger, wing more than 60 mm.; upper wing- coverts black tipped with white, in contrast to the rest of the upper surface ............... M. vavasouri, p. 32. B. Smaller, wing less than 60 mm.; upper wing- coverts uniform with the rest of the upper BUTLALO «sinc vin 526 tooeeee ae eeeeee eaees hates MM. behni, p. 33. 368. Myrmophila vavasouri. Vavasour’s LONG-WINGED ANT-BIRD. Myrmotherula longipennis (nec Pelz.) Salvin, Ibis, 1885, p. 426 (Bartica Grove, Camacusa) ; Sclater, Cat. B. Brit. Mus. xv. p. 241, 1890; Brabourne & Chubb, B. 8. Amer. i. p. 198, no. 1988, 1912. Myrmophila vavasouri Chubb, Bull. Brit. Orn. Club, xxxviii. p. 83, 1918. Adult male. General colour above and below slate-blue, including MYRMOPHILA. ao the head, back, inner secondaries, tail, breast, abdomen, sides of body, under tail-coverts, and under wing-coverts ; a white tuft on the shoulder of the wing ; upper wing-coverts black tipped with white ; primary and secondary quills dark brown with pale edges on the inner webs, slate-blue on the outer webs, and narrowly edged with white at the tips of the secondaries; inner. webs of tail-feathers blackish and narrowly margined with white at the tips ; chin and throat-patch deep black. Total length 103 mm., exposed culmen 14, wing 66, tail 41, tarsus 16. Adult female. Differs entirely from the male in being fulvous- brown above and inclining to rufous on the wings; sides of the face, throat, and middle of the breast ochreous-buff ; sides of the breast, sides of the body, and under tail-coverts fulvous ; middle of abdomen greyish white. Wing 61 mm. The types of both male and female are in the McConnell collection and were collected on the Ituribisi River in February 1907. Breeding-season. Unknown in British Guiana. Nest. Unrecorded in British Guiana. Eggs. Undescribed from British Guiana. Range in British Guiana. Ituribisi River, Supenaam River, Makauria River, Anarica River (MeConnell collection) ; Bartica, Kamakusa ( W hitely). Extralimital Range. Surinam (Penard). Habits. Unrecorded in British Guiana. This bird is named in honour of Mrs. McConnell’s second surviving son. 369. Myrmophila behni. BeEun’s ANT-BIRD. Myrmotherula behni Berl. & Leverk. Ornis, vi. p. 25, pl. i. fig. 2, 1890 (S. Fé de Bogota) ; Brabourne & Chubb, B. 8. Amer. i. p. 199, no. 1992, 1912. Myrmotherula unicolor (nec Menetr.) Salvin, Ibis, 1885, p. 426 (Bartica Grove, Camacusa, Roraima, 3500 ft.). Myrmotherula inornata Sclater, Cat. B. Brit. Mus. xv. p. 243, 1890 (Camacusa, Roraima, Bartica Grove). Adult male. General colour above, including the crown of the head, sides of the face, entire back, wings, and tail, slate-blue ; VOL. II. D 34 BIRDS OF BRITISH GUIANA. inner webs of flight-quills dark brown margined with white ; throat and middle of breast black; sides of the body, abdomen, under tail-coverts, and under wing-coverts slate-blue, paler on the last which have whitish shaft-lines ; under surface of flight-quills hair-brown with white edges; lower aspect of tail dark brown. Total length 92 mm., exposed culmen 12, wing 55, tail 34, tarsus 17, The male described was collected at Mount Roraima, 3500 ft., by H. Whitely on January 15th, 1884. Now in the British Museum—Salvin-Godman collection. Adult female. General colour of the upper surface dark rust- brown including the top of the head, sides of the face, entire back, wings and tail; inner webs of flight-quills hair-brown 3 eye-ring and throat whitish ; breast, abdomen, sides of the body, and under tail-coverts pale rust-brown, darker on the flanks and under tail- coverts ; axillaries and under wing-coverts white washed with cinnamon-buff; under surface of quills pale brown with white inner edges. Wing 52 mm. The female described, which is in the British Museum, was also collected at Mount Roraima by H. Whitely, on October 31st, 1585. Immature male. Similar to the adult female, but differs in being more rufous on the fore part of the head and wings; the sides of the face are pale rufous; throat and breast isabelline-buff; abdomen, sides of the body, and under tail-coverts pale slate- grey; under surface of flight-quills dark brown with rufous inner edgings. The immature male described was collected at Bartica by H. Whitely on the 17th of December, 1879, and is now in the British Museum. Breeding-season. Unknown in British Guiana. Nest. Unrecorded in British Guiana. £ggs. Undeseribed from British Guiana. Range in British Guiana. Supenaam River, Bartica, Makauria River (McConnell collection); Mount Roraima, Kamakusa, Bartica (Whitely). Extralinital Range. Surinam (Penard), Colombia. Habits. Unrecorded in British Guiana. POLIOLZMA, 35 Genus POLIOLZMA Chubb. Poliolema Chubb, Bull. Brit. Orn. Club, xxxix. p, 42, Jan. 3, 1919. Type P. cinereiventris (Scl. & Salv.). Fig. 17.—Poliolema cinereiventris. This genus is readily distinguished in having the throat uniform with the rest of the under surface. The bill, which is long compared with the other genera of this group, has the exposed culmen about equal in length to the hind toe and claw. The wing is rounded, the third, fourth, and fifth quills longest, the second about equal to the seventh. The tail is short and nearly square, the outer feather on each side is only very slightly shorter than the rest. The feet are small and weak. Male and female entirely different in colour. Key to the Species. A. Abdomen grey like the breast............ P. cinereiventris, 8, p. 35. a. Upper tail-coverts grey like the back. P. cinereiventris, 2, p. 36. B. Abdomen ferr Verney in contrast to the grey breast . # . P. guttata, 3, p. 36. b. Upper tail-cov verts ferraginous i in con- trast to the back.. eee ts . P. guttata, 2, p. 37. 370. Poliolema cinereiventris. GREY-BREASTED ANT-BIRD. Myrmotherula cinereiventris Sclater & Salvin, P. Z. S. 1867, p. 756 (Cayenne); Salvin, Ibis, 1885, p. 426 (Bartica Grove, Camacusa) ; Sclater, Cat. B. Brit. Mus. xv. p. 244, 1890 (Bartica Grove, Camacusa); Brabourne & Chubb, B.S. Amer. i. p. 199, no. 1993, 1912. Adult male. General colour above and below lead-grey, rather paler on the throat; the subapical portion of the upper wing- coverts black fringed with white at the tips; primary and secondary quills dark brown on the inner webs with pale edgings ; tail-feathers narrowly tipped with white; under wing-coverts D2. 36 BIRDS OF BRITISH GUIANA. black fringed with white; under tail-coverts Jike the abdomen but broadly margined with white. Total length 86 mm., exposed culmen 15, wing 57, tail 29, tarsus 17. Adult female. Upper surface, including the crown of the head, entire back, and tail, mouse-grey ; outer aspect of wing tinged with rufous ; inner webs of flight-quills dark brown with buffy-white edges ; lores, a line over the eye extending on to the sides of the crown, and sides of the face grey ; throat whitish; breast, abdo- men, sides of the body, under tail-coverts, under wing-coverts, and inner edges of the flight-quills below buff. Wing 53 mm. The female described was collected at Bartica by H. Whitely on the 1st November, 1879—now in the British Museum, Salvin Godman collection. Breeding-season. Unknown in British Guiana. Nest. Unrecorded in British Guiana. Eggs. Undescribed from British Guiana. Range in British Guiana. Supenaam River, Bartica, Berbice, Arwye Creek, Tiger Oreek (McConnell collection); Bartica, Kamakusa, Mount Roraima (W hitely). Eetralimital Range. Surinam (Penard), Cayenne (Sclater § Salvin). Habits. Unrecorded in British Guiana. 371. Poliolema guttata. RUFOUS-BELLIED ANT-BIRD. Myrmothera guttata Vieill. Gal. Ois. i. p. 251, pl. 155, 1825 (Cayenne). Rhopoterpe guttata Cab. in Schomb. Reis. Guian. iui. p. 688, 1848. Myrmotherula guttata Salvin, Ibis, 1885, p. 425 (Camacusa, Bartica Grove); Sclater, Cat. B. Brit. Mus. xv. p. 282, 1890 (Bartica Grove, Roraima, Camacusa); Brabourne & Chubb, B. 8. Amer. i. p- 197, no. 1967, 1912. Adult male. Crown of head, hind-neck, upper back, sides of the face, throat, and breast dark slate-grey, darker on the head and paler on the throat ; the feathers of the back are white at the base, subapically marked with black and rust-brown at the tips ; rump rust-brown with rufous tips to the feathers; lesser upper wing-coverts greyish brown; median and greater wing-coverts black tipped with fulvous ; bastard-wing dark brown, the outer margins of the feathers fulvous ; primary coyerts and quills dark brown, with rusi-brown on the edges of the outer webs of the POLIOLZ MA.—HERPSILOCHMUS. BA latter and pale buff margins on the inner webs, the innermost secondary quills black with large fulvous spots at the tips, the spots decreasing in size on the outer secondaries; upper tail- coverts and tail black with rufous-buff tips to the feathers, under surface of tail similar; flanks, abdomen, and under tail-coverts chestnut ; under wing-coverts dusky. Total length 87 mm., exposed culmen 14, wing 52, tail 29, tarsus 19. Adult female. Differs from the adult male in the absence of the dark slate-grey on the head, hind-neck, upper back, throat, sides of the face, and breast, replaced by dusky-brown, which is paler on the breast and becoming whitish on the throat. Wing 49 mm. The male described was collected by Mr. McConnell on the Lower Mazaruni River during his expedition to Mount Roraima in 1898; the female was collected on the Makauria River. Breeding-season. Unknown in British Guiana. Nest. Unrecorded in British Guiana. Eggs. Undescribed from British Guiana. Range in British Guiana. Mount Roraima, Bartica, Kamakabra River, Makauria River, Lower Mazaruni River, Arawai River (Me Connell collection); Kamakusa, Bartica (Whitely). Extralimital Range. Surinam (Penard), Cayenne ( Vieillot). Habits. According to Schomburgk (Reis. Guian. iii. p. 688) this bird inhabits the outskirts of woods. It procures its food, which consists of insects, on the ground among the leaves under the bushes. Genus HERPSILOCHMUS Cab. Herpsilochmus Cabanis, Archiv fiir Naturg. xiii. pt. i. p. 224, 1847. Type H. pileatus (Licht. ). Fig. 18.—Herpsilochmus pileatus. The species on which this genus was founded has a somewhat long bill, in proportion to its general size, which is hooked at the tip. The wing is rounded, the fourth primary slightly longest. The tail is also rounded and graduated, the outermost feather on 38 BIRDS OF BRITISH GUIANA. each side is about three-fourths the length of the middle ones. The feet are slender, the tarsus about two-thirds the length of the tail. Coloration: male and female similar. Key to the Species. A. Smaller, tail less than 40 mm. a. Crown of head biltgk 2. -...o.-scveccaaet H, sticturus, 3, p. 38. b. Crown of head for the most part chest- nwt. 4 gi ee es ek. Ao H, sticturus, Q,p. 38. B. Larger, tail more than 40 mm. ce. Crown of bead plants 4......1..ctakeuceeeee H, roraime, 3, p, 39. d, Crown of head black with white Bee to the feathers........... .... A. roraime, 9, p. 39. 372. Herpsilochmus sticturus. SPOTTED-TAILED ANT-BIRD. Herpsilochmus sticturus Salvin, Ibis, 1885, p. 424 (Bartica Grove, Camacusa) ; Sclater, Cat. B. Brit. Mus. xv. p. 245, 1890 (Cama- cusa, Bartica Grove); Brabourne & Chubb, B. 8. Amer. i. p. 199, no. 2000, 1912. Adult male. Crown of head, nape, hind-neck, a line in front and behind the eye black, which colour also extends on to the middle of the back, where the bases of the feathers are grey and the subapical portion white; scapulars, rump, and upper tail- coverts lead- “grey; upper wing-coverts black tipped with white, the white increasing in extent on the greater series ; bastard-wing, primary-coverts, primary and secondary quills black margined with white ; tail black with white marginal spots and white tips to the feathers, the white increasing in extent on the outer feathers ; eyelids, lores, and a line over the eye, which is continued on to the sides of the nape, white like the throat, middle of the abdomen, under tail-coverts, axillaries, and under wing-coverts ; cheeks, sides of breast, and sides of the body lead-grey. Total length 97 mm., exposed culmen 14, wing 50, tail 31, tarsus 19. Adult female. Differs from the adult male in having the feathers on the head partially chestnut, the back paler, a tinge of isabelline on the breast, and much paler on the abdomen and sides of the body. Wing 49 mm. The female described is the co-type, and was collected by the late Henry Whitely at Kamakusa on the 8th of May, 1882; now in the British Museum—Salvin-Godman collection. HERPSILOCHMUS. 39 Breeding-season. Unknown in British Guiana. Nest. Unrecorded in British Guiana. Eggs. Undescribed from British Guiana. Range in British Guiana. Supenaam River, Great Falls Deme- rara River (cConnell collection); Kamakusa, Bartica ( W hitely). Extralimital Range. Surinam (Penard). _ Habits. Unrecorded in British Guiana. 373. Herpsilochmus roraime. Roratmma ANT-BIRD, Herpsilochmus sp. inc., Salvin, Ibis, 1885, p. 425 (Roraima, 3500 ft.). Herpsilochmus dorsomaculatus (nec Pelz.) Sclater, Cat. B. Brit. Mus. xv, p- 246, 1890 (Twek-quay). Herpsilochmus roraime Hellmayr, Verh. zool.-bot. Ges. Wien, liii. p- 208, 1908 (Mt. Roraima); Brabourne & Chubb, B. 8. Amer. i. p- 200, no. 2002, 1912. Adult male. Crown of head black ; back, rump, and upper tail- coverts lead-grey, some of the feathers on the middle of the back white at the base, with black on the apical portion; upper wing- coverts black broadly tipped with white; flight-quills blackish, edged with white on the outer and inner webs, more broadly on the latter ; tail black tipped with white, the outer feathers marked with white on both webs; lores and a broad line over the eye extending along the sides of the crown white, followed by a line of black from behind the eye; a dark spot in front of the eye; sides of face and throat greyish white ; breast and sides of body ash-grey ; middle of abdomen, under tail-coverts, axillaries, under wing-coverts, and inner edges of quills below white; under surface of flight-quills hair-brown; lower aspect of tail black, tipped and extensively marked with white on the outer feathers. Total length 123 mm., exposed culmen 15, wing 54, tail 50, tarsus 20, Adult female. Differs from the adult male in being paler grey on the back, the feathers on the crown of the head black tipped with white, and the breast isabelline. Wing 54 mm. This species is unrepresented in the McConnell collection, and the male and female described above, which are in the British Museum, were collected at Mount Roraima by the late Henry Whitely in January 1882 and in 1884—Salvin-Godman collection, Breeding-season. Unknown. Nest. Unrecorded. 40 BIRDS OF BRITISH GUIANA. Eggs. Undescribed. Range conjined to British Guiana. Mount Roraima, Twek-quay, Kamarang River ( Whiuitely). Habits. Unrecorded. Genus DRYMOPHILA Such. Drymophila Such, Zool. Journ. i. p. 559, 1824. Type D. ferruginea (Licht., nee Mull. ). Fig. 19.—Drymophila grisea. The members of this genus have slender bills, short wings, and long tails. The exposed culmen is about three-fourths the length of the tarsus, the wing about one-tenth longer than the tail, and the tarsus nearly half the length of the tail. This genus strongly resembles Myrmopagis of Ridgway. Coloration: male and female different. 374. Drymophila grisea. CAYENNE ANT-WREN. Turdus griseus Bodd. Tabl. Pl. Enl. p. 39, 1783 (Cayenne). Hormicivora grisea Cab. in Schomb. Reis. Guian. iii. p. 687, 1848 ; Salvin, [bis, 1885, p. 426 (Merumé Mts.); Sclater, Cat. B. Brit. Mus. xv. p. 249, 1890 (Quonga); Brabourne & Chubb, B. S. Amer. 1, p. 200, no. 2009, 1912. Adult male. Head, hind-neck, back, scapulars, and upper tail- coverts dusky greyish brown with dark slate-grey bases to the feathers ; upper wing-coverts black with white tips to the feathers, including the bastard-wing and primary-coverts ; primary and DRYMOPHILA.—TERENURA. 41 secondary quills dark brown; tail-feathers black tipped with white, more broadly on the lateral ones, some of which are edged with white on the outer webs ; a narrow white line on the base of the forehead which extends over the eye and down the sides of the neck, where it joins the white on the sides of the breast and sides of the body; lores, sides of face, throat, breast, and abdomen black; under tail-coverts black tipped with white ; under wing-coverts silky-white, those on the outer margin black minutely tipped with white. Total length 120 mm., exposed culmen 15, wing 53, tail 41, tarsus 21. Adult female. Head, back, and wings dusky-brown ; upper wing-coverts and tail-feathers blackish brown tipped with white ; lores, sides of face, and throat white, the last tinged with buff ; breast, flanks, and abdomen orange-buff ; under wing-coverts and inner edges of quills white. Wing 54 mm. The male and female described were collected on the Abary River in September 1906. Breeding-season. Unknown in British Guiana. Nest. Unrecorded in British Guiana. Eggs. Undescribed from British Guiana. Range in British Guiana. Takutu River, Ituribisi River, Abary River, Ireng River, Great Falls Demerara River (MeConnell collection) ; Merumé Mountains, Quonga River ( Whitely). Extralimital Range. Surinam (Penard), Cayenne (Boddaert), North-east and Hastern Brazil. Hlabits. According to Schomburgk (Reis. Guian. iii. p. 687) this bird lives in the bushes along the river-side. Genus TERENURA Cab. & Hein. Terenura Cabanis & Heine, Mus. Hein. ii. p. 11, 1859. Type T. maculata (Wied). Fig. 20.—Terenura maculata. The members of this genus are birds of small size with pointed bills which are slightly hooked. The wing is rounded, the fourth 42 BIRDS OF BRITISH GUIANA, fifth, and sixth primaries longest, the third about equal to the seventh. The tail, which is nearly equal to the wing in length, is rounded and graduated, the two middle feathers longest, the outermost feather on each side only slightly more than half the length of the middle ones. The feet are small and slender; the tarsus exceeds the length of the exposed culmen by about one- fourth. Coloration: male and female similar, 375. Terenura spodioptila. ASH-VENTED ANT-WREN. Terenura spodioptila Sclater & Salvin, Ibis, 1881, p. 270, pl. ix. fig. 1 (Bartica Grove); Salvin, Ibis, 1885, p. 426 (Camacusa); Sclater, Cat. B. Brit. Mus. xv. p. 258, 1890 (Bartica Grove, Camacusa) ; Brabourne & Chubb, B. 5. Amer. i. p. 203, no. 2039, 1912. Adult male. Crown of the head and nape blackish brown ; back, scapulars, rump, and short upper tail-coverts chestnut ; wings, long upper tail-coverts, and tail greyish brown; median and upper wing-coverts tipped with white, which forms a double wing-bar ; lores, a line over the eye and along the sides of the crown, and sides of the tace ash-grey like the entire under surface, paler on the throat and inclining to white on the axillaries and under wing-coverts. Total length 95 mm., exposed culmen 13, wing 49, tail 37, tarsus 15, Adult female. Differs from the adult male in having the crown of the head and nape ochreous, including the lores and sides of the crown, and the throat and fore-neck tipped with isabelline. Wing 46 mm. This species is not represented in the McConnell collection, and the descriptions are taken from material in the British Museum. The male, which is the type of the species, was collected by the late Henry Whitely at Bartica in June 1880 and the female at Kamakusa in March 1882. Breeding-season. Unknown in British Guiana. Nest. Unrecorded in British Guiana. Eggs. Undeseribed from British Guiana. Range in British Guiana. Bartica, Kamakusa ( W hitely). Extralimital Range. Surinam (Penard). Habits. Unrecorded in British Guiana. RAAMPHOC ANUS. 43 Genus RHAMPHOCENUS Vieill. Rhamphocenus Vieill. N. Dict. d.Hist. Nat. xxix. p. 5, 1819. Type R. melanurus Vieill. Sian, Fig. 21.—Rhamphocenus melanurus. This genus, which is unlike any of its congeners, may be easily distinguished by its long bill, short wings, and long tail. The bill is long and slender and slightly hooked at the tip of the upper mandible, and the exposed culmen is almost equal to the tarsus in length. The wing is rounded, the fourth, fifth, and sixth primary- quills longest, the third about equal in length to the seventh. The tail, which exceeds the length of the wing, is almost square at the tip, the outer feather on each side being shorter than the rest. Coloration : male and female similar. 376. Rhamphoceenus albiventris. WHITE-BELLIED ANT-WREN. Rhamphocenus albiventris Sclater, [bis, 1893, p. 95 (Surinam) ; Salvin, Ibis, 1885, p. 426 (Bartica Grove, Camacusa); Sclater, Cat. B. Brit. Mus. xv. p. 261, 1890 (Quonga); Brabourne & Chubb, B. 8. Amer. i. p. 204, no. 2045, 1912. Adult male. Head, back, wings, and tail rufous-brown; inner webs of primary and secondary quills darker brown; tail black fringed with russet-brown which increases in extent on the two outermost feathers on each side ; there is a slight indication of a superciliary streak from the lores over and behind the eye ; cheeks, throat, breast, and sides of the body silvery-grey, the middle of the abdomen inclining to silky-white like the under wing-coverts. Total length 117 mm., exposed culmen 22, wing 47, tail 43, tarsus 20. The bird from which the description is taken was collected on the Ituribisi River in 1909. Adult female. Similar to the adult male. Wing 42 mm. Breeding-season. Unknown in British Guiana, 44 BIRDS OF BRITISH GUIANA. Nest. Unrecorded in British Guiana. Eggs. Undescribed from British Guiana. Range in British Guiana. Ituribisi River, Supenaam River, Great Falls Demerara River, Arawai River (McConnell collection) ; Bartica, Kamakusa, Quonga River ( Whitely). Extralimital Range. Surinam (Bartlett, Penard). Habits. Unrecorded in British Guiana. Genus CERCOMACRA Scl. Cercomacra Sclater, P. Z.S. 1858, p. 244. Type C. cerulescens Sclater (nee Vieill.) =C. brasiliana Hellmayr, Nov. Zool. xii. p. 289, 1905. Fig. 22.—Cercomacra brasiliana. The present genus is distinguished chiefly by the large and graduated tail, which exceeds the length of the wing by nearly one-fourth. It possesses numerous stiffened black bristles on the fore part of the head. The bill is hooked at the tip and propor- tionally long, the exposed portion of the culmen being about CERCOMACRA. 45 two-thirds the length of thettarsus. The wing is rounded, the fifth, sixth, and seventh primaries longest and equal and the fourth about equal to the eighth. The tail is long and much graduated, the outer feather on each side being about half the length of the middle ones. Coloration: male and female different. Key to the Species. A. Bend of wing and margins of upper wing-coverts uniform with the [p. 45. rest of the upper surface ......... C. cinerascens immaculata, , a. Under surface ochreous brown... C. cinerascens immaculata, & , B. Bend of wing and margins of upper [p. 46. wing-coverts white in contrast to the rest of the upper sur- [p. 46. LE, OPM NO. 2S Ake OF tyrannina saturatior, 3, b. Under surface bright chestnut- [p. 46. TULOUS ~ .....scsrvesesr-casse-ees-, OC. tyranmnea saturatior, 9, 377. Cercomacra cinerascens immaculata. Tug British GUIANA AnT-W REN. Cercomacra cinerascens (nec Sel.) Salvin, Ibis, 1885, p. 426 (Bartica Grove, Camacusa); Sclater, Cat. B. Brit. Mus. xv. p. 264, 1890, part, specimens a—d; Brabourne & Chubb, B.S. Amer. i. p. 204, no. 2050 part, 1912. Cercomacra cinerascens immaculata Chubb, Bull. Brit. Orn. Club, xxxvill. p. 84, July 25, 1918. Adult male. General colour above and below blackish slate- colour; primary and secondary quills blackish, with pale grey edgings to the inner webs ; tail somewhat darker than the back, with indistinct wavy bars and narrow white tips to the feathers ; under surface slightly paler than the back. Total length 147 mm., culmen 17, wing 65, tail 57, tarsus 20. The type, which is in the McConnell collection, was collected on the Supenaam River in March 1910. This subspecies differs from C. cinerascens cinerascens in being darker (both male and female), above and below, in the absence of the white dorsal patch, and the uniform upper wing-coverts. According to Hellmayr (Nov. Zool. xii. p. 287) C. napensis Scl. is synonymie with C. cinerascens Scl. The Guiana bird therefore is easily separable from the type of the latter by the characters given above. 46 BIRDS OF BRITISH GUIANA. Adult female. General colour above very dark oehreous-brown, becoming paler brown on the head and outer aspect of the wings ; primary and secondary quills dark brown, with pale edges to the inner webs; tail-feathers olive-brown regularly, but obscurely, barred with black and fringed with white at the tips; entire under surface rust-brown. Wing 63 mm. The female described was collected at the Great Falls Demerara River in August 1913. Breeding-season. Unknown in British Guiana. Nest. Unrecorded in British Guiana. Eggs. Undescribed from British Guiana. Range in British Guiana. Supenaam River, Bartica, Great Falls Demerara River (McConnell collection); Bartica, Kamakusa (Whitely). Extralimital Range. ?Surinam, Venezuela. Habits. Unrecorded in British Guiana. 378. Cercomacra tyrannina saturatior. Guiana ANT-WREN. Cercomacra tyrannina (nec Scl.) Salvin, Ibis, 1885, p. 427 (Bartica Grove, Camacusa, Roraima, 3500 ft.); Sclater, Cat. B. Brit. Mus. xv. p. 265, 1890 (Takutu River); Brabourne & Chubb, B.S. Amer. i. p. 204, no, 2053, 1912. Cercomacra tyrannina saturatior Chubb, Bull. Brit. Orn. Club, xxxviii. p. 85, 1918. Adult male. Differs from the type of C. t. tyrannina from Bogota in being much darker, almost black above, and very dark slate-colour on the under surface. Total length 144 mm., exposed culmen 17, wing 65, tail 59, tarsus 23. Adult femule. Differs from the typical female of C. t. tyrannina in being bright chestnut rufous on the cheeks and entire under surface. Total length 129 mm., exposed culmen 16,.wing 64, tail 56, tarsus 22. The male described was collected on the Ituribisi River in February 1907 and the female in 1909. The types are in the McConnell collection. An immature male from the Abary River is, for the most part, CERCOMACRA.— MANIKUP. 47 like the male but still retains on the under surface a trace of the female plumage. Breeding-season. Unknown in British Guiana. Nest. Unrecorded in British Guiana. Eygs. Undescribed from British Guiana. Range in British Guiana. Ituribisi River, Supenaam River, Bartica, Kamakabra River, Makauria River, Bonasika River, Abary River, Anarica River, Aarawai River, Arwye Creek, Tiger Creek Essequibo River (McConnell collection) ; Mount Roraima, Kamakusa, Takutu River, Bartica ( Whitely). Extralimital Range. ? Surinam. Habits. Unrecorded in British Guiana. Genus MANIKUP Desm. Manikup Desmarest, Hist. Nat. Tanagars, Manakins, et Todies, pl. 66, 1805. Type I. albifrons (Linn.). Fig. 23.—Manikup albifrons. The type of this genus is easily distinguished by the long white lanceolate feathers on the top of the head and on the throat. The wing, which is rounded, has the third, fourth, and fifth primaries longest and equal, the second about eqnal to the seventh. The tail is almost square at the tip and about half the length of the wing. The feet are proportionally large, the tarsus about one-fourth longer than the exposed portion of the culmen. Coloration : male and female similar. 48 BIRDS OF BRITISH GUIANA. 379. Manikup albifrons. WHITE-FRONTED ANT-CATCHER. Pipra albifrons Linn, Syst. Nat. 12th ed. i. p. 339, 1766 (Guiana: ex Edwards, pl. 344). Pithys albifrons Cab. in Schomb. Reis. Guian. iii. p. 685, 1848; Salvin, Ibis, 1885, p. 428 (Bartica Grove, Camacusa, Merumé Mts., Roraima 3500 ft.) ; Sclater, Cat. B. Brit. Mus. xv. p. 294, 1890 (Roraima, Camacusa, Merumé Mts., Bartica Grove); Brabourne & Chubb, B. 8. Amer. i. p. 206, no. 2068, 1912; Beebe, Trop. Wild Life in British Guiana, p. 132, Jan. 1917 (Bartica). Manikup albifrons Chubb, Bull. Brit. Orn. Club, xxxix, p. 42, Jan. 3, 1919. ~ Adult male. Back and wings dark slate-colour, inner webs of primary and secondary quills dark brown; upper tail-coverts, a nuchal collar, ear-coverts, breast, abdomen, under tail-coverts, axillaries, under wing-coverts, and tail, both above and below, deep chestnut; crown of head, fore part of face, and the feathers dividing the white chin and chestnut breast black; a narrow streak behind the eye, fore part of head and throat white, the feathers of the two latter much elongated and lanceolate ; greater under wing-coverts and quill-lining pale brown. Total length 122 mm., exposed culmen 18, wing 72, tail 38, tarsus 24. The bird from which the description is taken was collected on the Ituribisi River in August 1908. Adult female. Similar to the adult male. Wing 67 mm. Young birds are distinguished by the dusky appearance above and below, the absence of the chestnut collar on the hind-neck, the white streak behind the eye, the white feathers on the fore part of the head, and the white on the throat. The specimen on which these remarks are based was collected on the Ituribisi River in October 1908. There are two other immature exampies from the Anarica River, rather more advanced, which show the appearance of white on the middle of the throat. Breeding-season. Unknown in British Guiana. Nest. Unrecorded in British Guiana. Eggs. Undescribed from British Guiana. Range in British Guiana. Ituribisi River, Supenaam River, Anarica River (McConnell collection); Mount Roraima, Kamakusa, Merumé Mountains, Bartica ( Whitely). MANIKUP.—ANOPLOPS. 49 Extralimital Range, Surinam (Penard), Cayenne, North Brazil, Venezuela. Habits. Schomburgk states (Reis. Guian. iii. p. 685) that he only met with this bird when he came in contact with a stretch of land occupied by the unmeasurable “ Wander-ants.” It appears to come with them and leave at the same time. He did not know anything of its nidification, neither could the Indians give him any information on the subject. Genus ANOPLOPS Cab. & Hein. Anoplops Cabanis & Heine, Mus. Hein. ii. p.9,1859. Type A. rufigula (Bodd.). Fig. 24.—Anoplops rufigula. The species on which this genus is based hasa bare space round the eye. A concealed dorsal patch, which is white in the male and orange-buff in the female. The bill is of normal size and hooked at the tip. The wing is rounded, the fourth, fifth, and sixth primaries are longest and equal, the third about equal in length to the seventh. The tail is almost square at the tip, the outer feather on each side being only slightly shorter than the middle ones. Coloration: the dorsal patch white in the male, orange-buff in the female. 380. Anoplops rufigula. RUFOUS-FRONTED ANT-CATCHER. Turdus rufigula Bodd. Tabl. Pl. Enl. p. 39, 1783 (Cayenne). Pithys pectoralis Cab. in Schomb. Reis. Guian. iii. p. 685, 1848. Pithys rufigula Salvin, Ibis, 1885, p. 428 (Bartica Grove, Camacusa) ; W. L. Sclater, Ibis, 1887, p. 818 (Maceasseema). Gymnopithys rufiqgula Sclater, Cat. B. Brit. Mus. xv. p. 297, 1890. Anoplops rufigula Brabourne & Chubb, B. 8. Amer. i. p. 206, no, 2074, 1912. Anoplops rufiqula rufiqula Beebe, Tropical Wild Life in Brit. Guian. p- 229, 1917. * Yackman-bird” (W. L. Sclater), VOL. LU. E 50 BIRDS OF BRITISH GUIANA. Adult male. General colour above dark chocolate-brown, some- what richer and inclining to deep chestnut-brown on the head ; the base of the feathers on the mantle pure white, which forms a semi-obscured dorsal patch; inner webs of the primary and secondary quills blackish with pale fulvous inner margins ; tail similar to the back but somewhat paler; cheeks and ear-coverts deep chestnut, rather darker on the hinder pertion of the latter ; fore-neck and throat fawn-colour, richer and deeper in colour on the latter like the outer edge of the wing; breast, abdomen, under tail-coverts, sides of body, and inner under wing-coverts dusky fawn-brown. Total length 136 mm., exposed culmen 16, wing 76, tail 47, tarsus 27. Adult female. Similar in the general colour of the plumage to the adult male, but differs in having the dorsal patch orange-buff instead of pure white. Wing 75 mm. The birds from which the descriptions are taken were collected on the Ituribisi River in February 1907. A nestling in the British Museum, collected by Whitely at Bartica in January 1880, is uniform chocolate-brown both above and below. ; Breeding-season. June (Beebe). Nest. Built of small twigs and vine stems lined with a few pieces of coarse fibre (Beebe). Eggs. Warm pinkish ground-colour, marked with purplish red, lilac and Jake, chiefly at the larger end: measurements 21:5 x17 mm. (Beebe). Range in British Guiana. Ituribisi River, Bartica, Makauria River (McConnell collection); Kamakusa, Bartica (Whitely); Maccasseema (W. L. Selater). Extralimital Range. Surinam (Penard), Cayenne (Boddaert), North-east Brazil. Hahits. Schomburgk states (Reis. Guian. iii. p. 685) that he only found this bird in the low brush of the coast-woods or on the ground in search for its food. The following note is copied from W. L. Sclater (Ibis, 1887, p- 318) :—‘*This Ant-Thrush, I was told, was commonly known as the Yackman-bird. It is said to be seen only in pursuit of the moving troops of the Yackman-ants (ertton, sp. inc.), which, as is stated, have no nest, but move in enormous masses through the ANOPLOPS.—MYRMORNIS. 51 forest. The specimen of this bird which I procured was shot by one of the Indians in my presence, while I was engaged in watching a troop of these ants which were passing through the forest.” See also Beebe, ‘ Tropical Wild Life,’ p: 229. Genus MYRMORNIS Herm. Myrmornis Hermann, Tab. Affin, Anim. p. 188, 1788. Type JL tor- quata (Bodd.). Fig. 25.—Myrmornis torquata. The species on which this genus was founded is conspicuous by its large bill, short tail, somewhat thick feet, and Woodcock-like upper plumage. The bill is hooked at the tip, and the exposed portion of the culmen is nearly as long as the tarsus. The wing is almost square, the primaries being only about 20 mm. longer than the secondaries. The tail is only a little more than one- third the length of the wing. Coloration: male and female different. to E 52 BIRDS OF BRITISH GUIANA. 381. Myrmornis torquata torquata *. CAYENNE ANT-THRUSH. Formicarius torquatus Boddaert, Tabl. Pl. Enl. p. 48, 1783 (Cayenne). Rhopoterpe torquata Salvin, Ibis, 1885, p. 429 (Bartica Grove, Cama- cusa); Sclater, Cat. B. Brit. Mus. xv. p. 298, 1890 (Demerara) ; Beebe, Our Search for a Wilderness, p. 802, 1910 (Aremu River). Woodcock Ant-bird (Beebe). Adult male. Head dark chestnut-brown with slightly paler shaft-streaks to the feathers; back greyish brown, the feathers broadly fringed with chestnut, some of the feathers have white bases with the terminal portion black, while others have an ovate black subterminal spot ; rump, upper tail-coverts, and tail chest- nut ; upper wing-coverts black fringed with white or smoky-white and sometimes greyish brown on the basal portion ; an oblique band of smoky-white across the outer webs of the primary-quills, tips of secondary quills bronze-grey, a large patch of white on the inner webs of the quills, which commences on the third outer primary, increasing in extent towards the inner secondaries ; lores, a line over the eye, and hinder face speckled with black and white; throat and fore-neck black, the feathers on the outer margin of the black throat-spot tipped with white; breast, sides of the body, and abdomen dark ash-grey, somewhat paler on middle of the abdomen; lower flanks rust-brown; under tail- coverts pale chestnut; under wing-coverts white barred with dark brown ; quills below pale brown with a white patch. Total length 140 mm., exposed culmen 22, wing 93, tail 36, tarsus 23. . The male from which the description is taken was collected on the Ituribisi River. Adult female. Differs from the adult male in having a chestnut throat-patch instead of black as in the male. Wing 93 mm. The adult female described was collected at Bartica. Nestling. Covered for the most part with down, which is chestnut-brown in colour. The wing-feathers, which are more or less developed, are similar in colour to those of the adult. This specimen was collected on the Kamakabra River. * This species was unfortunately omitted from Brabourne & Chubb’s ‘ Birds of South America,’ vol. i. MYRMORNIS. . 53 Breeding-season. Unknown in British Guiana. Nest. Unrecorded in British Guiana. Eggs. Undescribed from British Guiana. Range in British Guiana. Ituribisi River, Supenaam River, Bartica, Kamakabra River, Makauria River, Arawai River, Arwye Creek (McConnell collection); Bartica, Kamakusa (Whitely) ; Demerara (Brown). Extralimital Range, Surinam (Penard), Cayenne (Boddaert). Habits. Beebe, in ‘Our Search for a Wilderness,’ p. 302, gives the following note on this species :—‘‘ Keeping to the left through the open underbrush I intersected another wood road, then swung around and at last entered the clearing from the south-east. Hearing a rustling I suspected another tortoise, and was about to pass on when I saw leaves and twigs flying into the air behinda log. Creeping from tree to tree I saw that the commotion was made by a trio of Ant-thrushes, or, as I prefer to call them, Antbirds. They took the leaves and leaf-mould in their beaks and threw them over their backs, all three working side by side, covering a width of about two feet. They were Woodcock Antbirds, reminding one, in the general tone of coloration of the upper parts, of that bird. The chin and throat were black bordered with white which extended up the sides of the neck and forward over the eyes. The tail was short and often held erect over the back, while the strong legs and feet proclaimed them terrestrial rather than arboreal. When flying or excited, a row of white spots flashed out from all the wing- feathers save the first two primaries, but when the wings were closed only buff markings were visible. Now and then two of the birds would spy some morsel of food at the same instant and a tussle would ensue. With angry scolding cries the two con- testants would strike at each other with their beaks, with wings wide spread and the elongated feathers of the back raised and parted exposing the conspicuous white base of the plumes, almost like a rosette. These white stars were very conspicuous amid the dark shadows of the forest floor, vanishing instantly when the wings were lowered. This colour is not visible in flight.... When the matter of dispute was devoured or had crawled away into safety the quarrel was at once forgotten, and the birds began scratching peacefully side by side as before.” 54 : BIRDS OF BRITISH GUIANA. Genus PERCNOSTOLA Cab. & Hein. Perenostola Cabanis & Heine, Mus. Hein. ii. p. 10,1859. Type P. rufi- frons (Gmel.). Fig. 26.—Percnostola rufifrons. This genus is distinguished in having the head crested, the feathers of the back long and disintegrated, and the absence of a concealed dorsal patch. The bill is short and stout, the exposed culmen about two-thirds the length of the tarsus. The wing rounded, the fourth, fifth, sixth, seventh, and eighth primaries longest and subequal, the third slightly shorter than the ninth. The tail is also rounded and is about three-fourths the length of the wing. Coloration : the male and female are quite different in colour. 382. Percnostola rufifrons. CAYENNE BLACK-HEADED ANT-CATCHER. Turdus rufifrons Gmel. Syst. Nat. 1. p. 825, 1789 (Cayenne). Pyriglena funebris Cab. in Schomb. Reis. Guian. i. p. 684, 1848 ; Salvin, Ibis, 1885, p. 429. Percnostola funebris Sclater, Cat. B. Brit. Mus..xv. p. 273, 1890. Percnostola rufifrons Brabourne & Chubb, Bb. 8. Amer. i. p. 208, no. 2098, 1912. Adult mate. General colour above and below dark slate-colour ; upper wing-coverts, including the bastard-wing, black narrowly fringed with white at the tips of the feathers; primary-coverts, primary and secondary quills dark brown margined on the outer edges with dark slate-colour; tail similar to the back, with indistinct dark narrow cross-bars; entire head, sides of face, neck all round, and throat black ; under wing-coverts and quills below pale brown; lower aspect of tail blackish. Total length 151 mm., exposed culmen 20, wing 73, tail 58, tarsus 30. PERCNOSTOLA.—SCLATERIA. a The male described was collected on the Bonasika River. Adult female. Entire back, scapulars, and tail dusky brown; upper wing-coverts black margined with buff at the tips; the tips of the loose feathers on the rump and outer aspect of the quills rust-brown, inner webs of quills dark brown, somewhat paler on the inner edges; crown of head and nape black ; base of fore- head, a narrow line over the eye, sides of face, sides of neck, throat, and upper breast bright ferruginous, becoming paler on the lower breast, abdomen, sides of body, and under tail-coverts ; under wing-coverts buff, the greater series and quill-lining brown with pale edges to the inner webs; lower aspect of tail dark brown. Wing 68 mm. The female described was collected on the Supenaam River. Immature male. Similar to the adult female on the upper parts, but much less brilliant in colour on the sides of the face, throat, and fore-neck; breast, abdomen and under tail-coverts rust-brown. The immature bird was collected on the Bonasika River. Breeding-season. Unknown in British Guiana. Nest. Unrecorded in British Guiana. Eggs. Undescribed from British Guiana, Range in British Guiana. Ituribisi River, Supenaam River, Bartica, Kamakabra River, Bonasika River, Abary River, Berbice River, Anarica River, Arwye Creek, Great Falls Demerara River (Me Connell collection). Extralimital Range. Surinam (Penard), Cayenne (Gmelin). Habits. According to Schomburgk (Reis. Guian. 111. p. 684) this bird is more common in the coast woods than in the woods of the interior. Genus SCLATERIA Oberholser. Sclateria Oberholser, Proc. Acad. Nat. Sci. Philad. 1899, p. 299. Type S. nevia (Gmel.). Fig —Nelaleria nevia. This genus is distinguished by the long and somewhat thin bill and the smooth non-scutellated tarsi. ‘The exposed portion of the 56 BIRDS OF BRITISH GUIANA, culmen is about four-fifths the length of the tarsus. The wing is rounded, the fourth, fifth, sixth, and seventh primaries longest and subequal, the third shorter than the eighth and ninth but much longer thanthe tenth. The tail also rounded at the tip and oraduated, the two middle feathers longest and about five-sevenths the length of the wing. Coloration: male and female quite different. Key to the Species. A. Under surface streaked. a. Throat and breast slate-grey streaked with white ...... S. nevia 3, p. 56. 6b. Throat and breast w white stre aked with fawn-brown ...... ... WS. nevia 9, p. 57. B. Under surface antford, ink fabreakeed,) é. eas 3 under parts ash-grey............ 8. leucostigma 3, p. 57. _ Larger, and paler Chestnut on ‘the under surface ..... . &S. leucostigma 2, p. 58. d. Smaller, under surface Dlackich slate- COMIBE rnb .. &S. saturata 8, p. 58. d', Smaller, aad daviee ieatanh ¢ on e353 tinder GurfAGe’ o52..Li.....csaceesces-s DS BATNTOI Dp. De: 383. Sclateria neevia. SvurRINAM ANT-CREEPER, Sitta nevia Gmel. Syst. Nat. i. p. 442, 1788 (Surinam). Heterocnemis lineata Cab.in Schomb. Reis. Guian. ii. p. 685, 1848. Heterocnemis nevia Salvin, Ibis, 1885, p, 427 (Camacusa); NSclater, Cat. B. Brit. Mus. xv. p. 275, 1890 (Camacusa). Sclateria nevia Brabourne & Chubb,. B. 8S. Amer. i. p. 208, no. 2906, 1912. Adult male. General colour above dark slate-colour, somewhat darker and inclining to black on the upper wing-coverts, all of which are tipped with white, including the bastard-wing and primary-coverts ; primary and secondary quills dark brown; tail sooty-black ; head like the back, the short feathers surrounding the eye and sides of the face have white shaft-lines; throat white, the feathers slightly tipped with slate-grey ; remainder of the under surface slate-colour, but paler than the back, with longitudinal white centres to the feathers on the fore-neck, breast, and abdomen, somewhat darker and almost entirely uniform on the flanks, under tail-coverts, and under wing-coverts ; under surface of quills and lower aspect of tail dark brown. Total length 145 mm., exposed culmen 21, wing 71, tail 51, tarsus 25. SCLATERIA, 57 The male from which the description is taken was collected on the Kamakabra River in 1911. Adult female. Differs entirely from the adult male in being dark chocolate-brown above, instead of slate-colour, the upper wing-coverts tipped with fulvous, instead of white, and the under surface rust-brown lined with white, instead of slate-colour with white lines. Wing 68 mm. The female bird described was collected on the Ituribisi River in 1909. The young male bird in its first plumage is like the adult female, though somewhat darker perhaps, and has the fulvons tips to the upper wing-coverts. As it advances in age, however, these tips change to white, first on the major series; this change appears to be one of the first signs that denotes the sex, and the slate-colour of the adult plumage may be seen approaching in patches on the back and sides of the neck. The immature bird mentioned was collected on the Mazaruni River in October 1907, Breeding-season. Unknown in British Guiana. Nest. Unrecorded in British Guiana. Eggs. Undeseribed from British Guiana. Range in British Guiana. Ituribisi River, Supenaam River, Bartica, Kamakabra River, Bonasika River, Makauria River, Abary River, Mazaruni River, Arawai River (Jc Connell collection); Kamakusa ( Whitely). Eutralimital Range. Surinam (Gmelin, Penard). Habits. Schomburgk states (Reis. Guian. iii. p. 685) that he met with this bird only in the woods near the coast, where it ran about on the ground among the low bushes. 384. Sclateria leucostigma. Spot-wWINGED ANT-CREEPER, Perenostola leucostigma Pelz. Orn. Bras. pp. 86, 160, 1869 (Barra do tio Negro). Heterocnemis leucostigma Salvin, Ibis, 1885, p. 427 (Bartica Grove, Camacusa, Merumé Mts.); Sclater, Cat. B. Brit. Mus. xv. p. 276, 1890 (Takutu River, Camacusa, Bartica Grove). Selateria leucostigma Brabourne & Chubb, B. 8, Amer. i. p. 209, no. 2098, 1912. Adult male. General colour above blackish tinged with slate- colour, including the head, back, and tail; upper wing-coverts black, each with a small white spot at the tip; primary and 58 BIRDS OF BRITISH GUIANA. secondary quills blackish brown; sides of the face dark slate-grey becoming paler on the throat, breast, abdomen, and under wing- coverts and darker on the sides of the body, flanks, and under tail-coverts ; under surface of quills dark brown; lower aspect of tail sooty-black. Total length 150 mm.,exposed culmen 17, wing 79, tail 58, tarsus 23. The male bird described was collected on the Ituribisi River in October 1908. Adult female. Differs entirely from the adult male in having the upper parts chiefly chocolate-brown, instead of dark slate- colour, ferruginous spots at the tips of the upper wing-coverts, instead of white, and bright ferruginous on the under surface, instead of slate-grey. Wing 64 mm. The female described above was collected on the Ituribisi River in 1909. A young male of this species, collected on the Mazaruni River in October 1907, still retains traces of its first plumage, which is like that of the adult female, in having a few ferruginous feathers on the under surface and some of the upper wing-coverts tipped with ferruyinous while the remainder have white tips. Breeding-season. Unknown in British Guiana. Nest. Unrecorded in British Guiana. Eggs. Undescribed from British Guiana. Range in British Guiana. Ituribisi River, Supenaam River, Kamakabra River, Bonasika River, Makauria River, Mazaruni River, Tiger Creek, Essequibo River, Arawai River (McConnell collection); Bartica, Kamakusa, Takutu River ( Whitely). Extralimital Range. Surinam (Penard), North Brazil, East Peru, Ecuador, Colombia. Habits. Unrecorded in British Guiana. 385. Sclateria saturata. RorAIMA ANT-CREEPER. Heterocnemis saturata Salvin, Ibis, 1885, p. 427 (Roraima, 3500 ft.) ; Sclater, Cat. B. Brit. Mus. xv. p. 276, 1890 (Roraima, British Guiana). Sclateria saturata Brabourne & Chubb, B. 8. Amer. 1. p. 209, no. 2101, 1912. Adult male. General colour above and below blackish slate- colour ; upper wing-coverts black with white tips to the feathers; SCLATERIA.—MYRMODERUS. 59 bastard-wing edged with white on the outer web; primary and secondary quills blackish; axillaries and under wing-coverts tipped with white; under surface of flight-quills smoke-brown. Total length 156 mm., exposed culmen 17, wing 64, tail 56, tarsus 27, Adult female. General colour above chocolate-brown, darker and tinged with grey on the top of the head and sides of the hinder face; upper wing-coverts tipped with pale ferruginous; outer edge of bastard-wing similar; throat and breast chestnut be- coming darker on the abdomen, flanks, and under tail-coverts ; under wing-coverts hair-brown more or less marked with chestnut ; tail blackish above and below. Total length 140 mm., exposed culmen 17, wing 63, tail 53, tarsus 24. This species is not represented in the McConnell collection, and the descriptions are taken from the types in the British Museum, which were collected at Mount Roraima by the late Henry Whitely—Salvin-Godman collection. Breeding-season. Unknown. Nest. Unrecorded. Faqs. Undescribed. Range confined to British Guiana. Mount Roraima (Whitely). Halits. Unrecorded. Genus MYRMODERUS Ridew. Myrmoderus Ridgway, Proc. Biol. Soc. Washington, xxii. p. 70, 1909. Type MW. loricatus (Licht.). Fig. 28.—Myrmoderus longipes. The chief characters which distinguish this genus are the long bill, the almost square wing, and the long tarsi. The bill is slightly hooked. ‘The wing is only slightly rounded, the secondaries being almost equal in length to the primaries. The 60 BIRDS OF BRITISH GUIANA. tail is rounded and graduated and about three-fourths the length of the wing. Coloration: male and female different. Key to the Species. A. Abdomen white. G Throat black .....cevesnsuesdinarssvexvesee, iy LORGIDER OC 9 Ps tne b. Throat ferruginous .. dévvevlvevse penne pee, Longiper 2 Tee B. Abdomen chocolate-brown. e. Throat black .2.s..ccnk-s ass cov «es stshagaem ee EPTUGTECHE G sap) ceae d, Throat white » 21... cctestscscessesstopeves!, lls SOPTUGUNEUS Ds Dru (. Abdomen blackish brown. e. Throat black ......... M. «atrothoraz 3, p. 62. J. Throat white tinged with bright fawn- COLOUT (napcharans ; .. Md. atrothorax Q, p. 62. 386. Myrmoderus longipes. Swatnson’s ANT-CREEPER. Drymophila longipes Swains. Zool. Journ. ii. p. 152, 1825 (Trinidad) ; Brabourne & Chubb, B. 8. Amer. 1. p. 209, no. 2105, 1912. Myrmeciza longipes Sclater, Cat. B. Brit. Mus. xv. p. 278, 1890 (Quonga). Adult male. Upper surface bright chestnut including the head, back, wings, and tail; the feathers on the upper back more or less white towards the base and forming a somewhat concealed patch ; inner webs of primary and secondary quills brown with narrow rufous edgings; forehead, sides of crown, and sides of the nape grey, the feathers at the base of the forehead have black shaft-lines; lower sides of face, throat, and fore-neck dark slate- grey ; middle of abdomen inclining to white ; flanks fulvous- brown; under tail-coverts bright cinnamon; under wing-coverts whitish; under surface of quills brown with rufous edgings ; lower aspect of tail chestnut like the upper surface. Total length 140 mm., exposed culmen 16, wing 66, tail 53, tarsus 28. Adult female. Differs from the adult male in having the throat whitish and fore-neck pale rufous, instead of black, the breast whitish, instead of slate-grey, and a black spot on the subapical portion of the upper wing-coverts. Wing 64 mm. The male and female described were collected in the Upper Takutu Mountains in 1909. Breeding-season. Unknown in British Guiana. Nest. Unrecorded in British Guiana. MYRMODERUS. . 61 Eggs. Undescribed from British Guiana. Range in British Guiana. Upper Takutu Mountains (McConnell collection) ; Quonga River ( W hitely). Extralimital Range. Venezuela, Colombia. Habits. Unrecorded in British Guiana. 387. Myrmoderus ferrugineus. CAYENNE ANT-CREEPER. Turdus ferrugineus P. Ll. 8. Mill. Syst. Nat. Suppl. p. 141, '1776 (Cayenne). Myrmonax cinnamomeus Cab. in Schomb. Reis. Guian. iii. p. 684, 1848. Myrmeciza cinnamomea Salvin, Ibis, 1885, p. 427 (Bartica Grove, Camacusa) ; Sclater, Cat. B. Brit. Mus. xv. p. 280, 1890 (Takutu River, Berbice). Drymophila ferruginea Brabourne & Chubb, B. 8. Amer. i. p. 210, no. 2109, 1912. Adult male. General colour of the upper surface chestnut including the head, back, wings, and tail ; lesser marginal upper wing-coverts white, the remainder of the coverts above black minutely tipped with white on the lesser series and broadly edged at the tips with ferrugineus buff on the median and greater series, the primary-coverts similar but the edgings very narrow ; primary and secondary quills dark brown on the inner webs; lores and a line over the eye skirting the sides of the nape black, the feathers on the sides of the nape tipped with white which forms a conspicuous white streak ; cheeks, hinder face, throat, and breast uniform black ; region in front and behind the eye bare ; the feathers on the lower breast broadly margined with ash-grey, while those on the sides of the breast are paler and inclining to white ; middle of abdomen slate-grey ; sides of body and flanks rust-brown; under tail-coverts chestnut; under wing-coverts black, the greater series brown fringed with white at the tips ; quills below brown ; lower aspect of tail rufous-brown. Total length 150 mm., exposed culmen 19, wing 65, tail 52, tarsus 27. The specimen from which the description is taken was collected on the Mazaruni River in October 1907, Adult female. Differs from the adult male in having the throat white, instead of black,and the lower breast paler and inclining to white. Wing 64 mm. Breeding-season. Unknown in British Guiana. 62 . BIRDS OF BRITISH GUIANA. Nest. Unrecorded in British Guiana. Eggs. Undescribed from British Guiana. Range in British Guiana. Ituribisi River, Supenaam River, Mazaruni River, Bartica, Kamakabra River, Arawai River (McConnell collection); Bartica, Kamakusa, Takutu River (Whitely) ; Berbice (British Museum). Extralimital Range. Cayenne (Miller), Northern Brazil. Habits. According to Schomburgk (Reis. Guian. iii. p. 684) this bird frequents the woods on the coast, where it hops about in the low bush or on the ground in search of food. 388. Myrmoderus atrothorax. BLACK-THROATED ANT-CREEPER. Formicarius atrothorax Bodd. Tabl. Pl. Enl. p. 44, 1783 (Cayenne). Myrmeciza atrothorax Salvin, Ibis, 1885, p. 428 (Merumé Mts.) ; Sclater, Cat. B. Brit. Mus. xv. p. 282, 1890 (Merumé Mts.). Drymophila atrothoraz Brabourne & Chubb, B. 8S. Amer. i. p. 210, no. 2115, 1912. Adult male. Head and back bronze-brown ; wings rather darker than the back and inclining to smoky-black, with minute white spots at the tips of the upper wing-coverts and those round the edge of the wing both above and below; inner webs of the primary and secondary quills dark brown,somewhat paler on the inner margins ; dorsal feathers white towards the base which forms a concealed white patch on the back; rump and upper tail-coverts dull black, very loose and fluffy in texture; tail also black, both above and below; sides of face, sides of neck, abdomen, and flanks dark slate-colour ; throat and fore-neck black, as are also the under tail-coverts ; under wing-coverts dusky grey. Total length 143 mm., exposed culmen 17, wing 57, tail 56, tarsus 26. Adult female. Similar to the adult male above, but differs below in having the throat white and the remainder of the under surface for the most part bright ferruginous. Wing 55 mm. The male and female from which tne above descriptions are taken were collected on the Supenaam River in 1910. Breeding-season. Unknown in British Guiana. Nest. Unrecorded in British Guiana. Eggs. Undescribed from British Guiana. Range in British Guiana, Supenaam River, Kamakabra River, MYRMODERUS.—HYPOCNEMIS. 63 Makauria River, Abary River, Arawai River (M/eConnell collec- tion); Merumé Mountains ( Whitely). Extralimital Range. Cayenne (Boddaert), North Brazil, Vene- zuela, Colombia. Habits. Unrecorded in British Guiana. Genus HYPOCNEMIS Cab. Hypocnemis Cabanis, Arch. fiir Naturg. 1847, i. p. 212. Type H. cantator (Bodd.). Fig. 29.—Hypoenemis cantator. The species on which this genus was founded is a somewhat small bird. The bill is hooked at the tip, slender in form, and about two-thirds the length of the tarsus. It possesses short but numerous rictal bristles. The wing is rounded, the fourth and fifth primaries longest and equal, the third intermediate between the seventh and eighth. The tail, which is proportionately long, is rounded at the tip and graduated, the outer feather on each side about three-fourths the length of the middle ones. Colora- tion: male and female similar. 389. Hypocnemis cantator. WARBLING ANT-CREEPER. Formicarius cantator Bodd. Tabl. Pl. Enl. p. 44, 1783 (Cayenne). Hypocnemis tintinnabulata Cab. in Schomb. Reis. Guian. iii. p. 684, 1848. Hypocnemis cantator Salvin, Ibis, 1885, p. 428 (Camacusa, Bartica Grove); Sclater, Cat. B. Brit. Mus. xv. p. 285, 1890 (Camacusa, Bartica Grove); Brabourne & Chubb, B. 8. Amer. i. p. 211, no. 2120, 1912. Adult male. Entire head and nape black with white tips to many of the feathers which form three irregular lines, a narrow one above each eye which spreads out on the sides of the neck, and 64 BIRDS OF BRITISH GUIANA. a broader one on the middle of the crown and nape; mantle olive-brown with black tips and white bases to the feathers ; upper wing-coverts black with a white spot at the tips of the feathers; bastard-wing white on the outer edge; outer aspect of flight- quills, rump, upper tail-coverts, and tail rust-brown; inner webs’ of the primary and secondary quills blackish with whitish edgings; the tail-feathers have also pale edgings at the tips ; loral streak white with bristly black tips to the feathers; a spot in front of the eye entirely black; throat, fore-neck, breast, and middle of abdomen white with dark edges and black centres to the feathers, which are broader on the sides of the breast, narrower on the middle portion, and almost entirely absent on the abdomen; flanks and under tail-coverts pale ferruginous ; under wing-coverts for _ the most part white ; quill-lining pale brown with buffy-white inner edges ; lower aspect of tail similiar to that of the upper surface. Total length 109 mm., exposed culmen 14, wing 55, tail 40, tarsus 21. . The male described was collected on the Makauria River in August 1910. Adult female. Similar to the adult male, but the pale markings on the head and face isabelline instead of white, and the upper wing-coverts rust-brown with buff spots at the tips of the feathers instead of black with white tips, the feathers on the mantle uniform olive-brown instead of having black tips with white bases. Wing 58 mm. The description of the female is taken from a specimen collected on the Abary River in November 1906. Breeding-season. Unknown in British Guiana. Nest. Unrecorded in British Guiana. Eggs. Undescribed from British Guiana. Range in British Guiana. Mount Roraima, Supenaam River, Bartica, Kamakabra River, Bonasika River, Makauria River, Abary River, Arawai River, Tiger Creek, Essequibo River, Arwye Ureek (McConnell collection); Kamakusa, Takutu River, Bartica ( Whitely). Extralimital Range. Surinam (Penard), Cayenne (Boddaert), North Brazil. Habits. Schomburgk states (Reis. Guian. iii. p. 684) that this bird is found more commonly in the woods near the coast than in those of the interior. It hops about in the lower part of the bushes and on the ground in search of food. MYRMOBORDS. 65 Genus MYRMOBORUS Cab. & Hein. Myrmoborus Cabanis & Heine, Mus. Hein. ii. p. 9, 1860. Type M. leucophrys (Tsch.). Fig. 380.—yrmoborus leucophrys. The members that comprise this genus are larger in size than those of the previous one, and are distinguished in having the female plumage entirely different from that of the male. It differs also in the almost entire absence of rictal bristles. The exposed culmen is about three-fifths the length of the tarsus. The wing is rounded, the fourth and fifth primaries longest, the third about equal to the sixth. The tail is rounded at the tip, the outer teather on each side about three-fourths the length of the middle ones. Coloration: male and female different. 390. Myrmoborus angustirostris. SCHOMBURGK’s ANT-CREEPER, Conopophaga angustirostris Cab. in Schomb. Reis. Guian. iii. p. 685, 1548 (British Guiana). Myrmonazx leucophrys (nec Tsch.), Cab. tom. cit. p. 684. Hypocnemis leucophrys (nec 'T'sch.), Salvin, Ibis, 1885, p. 428 (Bartica Grove); Sclater, Cat. b. Brit. Mus. xv. p. 288, 1890 (Bartica Grove, Takutu River). Hypocnemis angustirostris Brabourne & Chubb, B. 8. Amer. i. p. 212, no. 2130, 1912. Adult male. General colour above and below dark slate-colour ; inner webs of flight-quills dark brown with pale edges; fore part of the head and a line over the eye greyish white ; sides of face and throat uniform black. VOL, Il. I 66 BIRDS OF BRITISH GUIANA. | Total length 122 mm., exposed culmen 15, wing 67, tail 43, tarsus 25. The description is taken from an example collected on the Ituribisi River in February 1907. Adult female. Differs entirely from the adult male in being rust-brown above with buffy-white spots at the tips of the upper wing-coverts ; fore part of head bright rufous, paler and inclining to buff on the sides of the crown; lores and sides of face black ; under surface for the most part white. Wing 67 mm. The female described was collected on the Supenaam River in 1910. Breeding-season. Unknown in British Guiana. Nest. Unrecorded in British Guiana. eggs. Undescribed from British Guiana. Range in British Guiana. Upper Takutu Mountains, Ituribisi River, Supenaam River, Bartica, Kamakabra River, Abary River, Arawai River, Arwye Creek (McConnell collection); Bartica, Takutu River ( Whitely). Extralimital Range. Surinam (Penard), Venezuela, Northern and Western Brazil, East Bolivia. Halits. According to Schomburgk (Reis. Guian. iii. p. 685) this species also frequents the woods near the coast and lives in the dense bushes, and hops about on the ground in search of food. Genus DICHROPOGON Chubb. Dichropogon Chubb, Ann. !& Mag. Nat. Hist. (9) ii. p. 124, 1918. Type D. pecilonota (Cab.). Fig. 31.—Dichropogon pecilonota. The species which I have separated generically had previously been associated with Hypocnemis of Cabanis, but it differs DICHROPOGON. 67 altogether in colour as well as in its proportionate forms. The bill is small and narrow. The wing, which is rounded, has the third, fourth, fifth, and sixth primaries longest, the second about equal to the eighth. The tail, which is nearly square at the tip, is about two-thirds the length of the wing. The legs and feet are proportionately strong; the tarsus exceeds the length of the exposed culmen by about two-fifths. Coloration : male and female similar. | 391. Dichropogon poecilonota. SPOTTED-BACKED ANT-CREEPER. Hypocnemis pecilonota Cab. Arch. fiir Naturg. 1847, p. 213, pl. iv. (Guiana); id. in Schomb. Reis. Guian. ii. p. 684, 1848; Salvin, Ibis, 1885, p. 428 (Roraima, 3500 ft., Camacusa, Atapurau River, Bartica Grove); Sclater, Cat. B. Brit. Mus. xv. p. 286, 1890 (Bartica Grove, Camacusa, Roraima, Atapurau River); Brabourne & Chubb, B. 8. Amer. i. p. 211, no. 2125, 1912. Adult male. General colour above and below slate-yrey, the feathers on the middle of the back subapically black and edged with white at the tips; upper wing-coverts and innermost secon- daries black margined with white at the tips of the feathers, outer edge of bastard-wing white like the outer margin of the first primary ; primary-coverts blackish with just a trace of white at the tips; inner webs of flight-quills dark brown with whitish edges; upper tail-coverts and tail-feathers black tipped with white, the latter spotted with white on both webs ; under surface paler slate-colour than above, especially on the chin, abdomen, under tail-coverts, and under wing-coverts, all of which incline to ash-grey. Total length 119 mm., exposed culmen 15, wing 64, tail 40, ’ tarsus 24, The male bird described was collected on the Bonasika River in, LOTR. Adult female. Differs from the adult male in having the chin, ' sides of the face, and fore part of the head brightrufous, somewhat darker on the hinder crown and nape, and the entire back and wings suffused with ochreous-brown as are also the lower flanks and under tail-coverts. Wing 63 mm. The female described was collected on the Ituribisi River in November 1906. F 2 68 BIRDS OF BRITISH GUIANA. The young male in its first plumage is evidently like the female, as there is an example from the Ituribisi River that shows the remains of rufous on the head, back, wings, sides of face, and throat. Breeding-season. Unknown in British Guiana. Nest. Unrecorded in British Guiana. Eggs. Undescribed from British Guiana. Range in British Guiana. Ituribisi River, Supenaam River, Bartica, Kamakabra River, Bonasika River, Makauria River, Anarica River, Arawai River, Arwye Creek. Extralimital Range. Surinam (Penard), Venezuela. Habits. Schomburgk mentions (Reis. Guian. tii. p. 684) that this bird frequents the woods near the coast, where it hops about in the low bushes and on the ground in search of food. The following note is quoted from Beebe (Our Search for a Wilderness, p. 324):—“I thoroughly enjoyed this new aspect of the jungle world. As usual small birds were fairly abundant, of which apparently 99 per cent. were Antbirds or Woodhewers. The most common Antbird in the valleys was the Scaly-backed, slate-coloured except for the feathers of the back, wings, and tail, which were black tipped with white. At one place two dozen of these little birds must have been in sight, uttering sharp, snapping ealls, and clinging, like Marsh-Wrens, to upright stems in the underbrush.” Genus HYPOCNEMOIDES Bangs & Penard. Hypocnemoides Bangs & Penard, Bull. Mus. Harv. Coll. Ixii, p 69, April 1918. Type H. melanopogon (Sclater). te ae Pala fo Hy VN \ ee ee SE a Fig. 32.— Hypocenemoides melanopogon. HYPOCNEMOIDES. 69 This genus is distinguished chiefly by its short tail and the long upper tail-coverts which cover half its length. The wing is rounded, the fourth, fifth, and sixth primaries longest and the third about equal to the eighth. Coloration: male and female similar. 392. Hypocnemoides melanopogon. BLACK-CHINNED ANT-CREEPER. Hypocnemis melanopogon Sclater, P. Z.S. 1857, p. 180 (Chamicurros) ; Salvin, Ibis, 1885, p. 428 (Camacusa) ; Sclater, Cat. B. Brit. Mus. xv. p. 290, 1890 (Guiana); Brabourne & Chubb, B.S. Amer. i. p. 212, no. 2139, 1912. Adult male. General colour above dark slate-colour ; upper wing-coverts black margined with greyish white ; inner webs of flight-quills dark brown; tail-feathers black edged with white at the tips; throat black; remainder of the under surface slate-grey, paler on the under tail-coverts and under wing-coverts. Total length 105 mm., exposed culmen 16, wing 683, tail 32, tarsus 21. The male described was collected on the Anarica River. Adult female. Similar to the adult male above, but differs on the under surface in having the throat white with very slight dark edges to the feathers, instead of uniform black, the feathers on the back tipped with ash-grey, and the abdomen white instead of slate-grey. Wing 62 mm. The female described was also collected on the Afiarica River. An immature male, collected on the Ituribisi River in October 1908, has the throat blackish with white bases to the feathers, which imparts a spotted appearance. Breeding-season. Unknown in British Guiana. Nest. Unrecorded in British Guiana. Eggs. Undeseribed from British Guiana. Range in British Guiana. Upper Takutu Mountains, Ituribisi River, Bartica, Bonasika River, Anarica River, Great Falls Deme- rara River, Arawai River (McConnell collection) ; Kamakusa ( Whitely). Extralimital Range. Surinam (Penard), North-west Brazil and Venezuela. Habits. Unrecorded in British Guiana. 70 BIRDS OF BRITISH GUIANA. Genus STICTOMYRMORNIS Chubb. Stictomyrmornis Chubb, Bull. Brit. Orn. Club, xxxix. p. 59, Feb. 1919. Type S. nevius (Gmel.). Fig. 83.—Stictomyrmornis nevius. The species that 1 have separated as a new genus under the above title had also been placed by previous authors in the genus Hypocnemis. It is, however, easily distinguished by its flat and muscicapine bill, the width of which at the base is about three- fifths the length of the exposed culmen. The wing is rounded, the third, fourth, and fifth primaries longest and equal, the third shorter than the sixth but longer than the seventh. Tail nearly square, the outer feather on each side being about eight- ninths the length of the middle ones. The feet are small, the tarsus is about one-fourth longer than the exposed culmen. Coloration; male and female similar. 393. Stictomyrmornis nevius. Spot-BACKED ANT-CREEPER. Pipra nevia Gmel. Syst. Nat. i. p. 1003, 1789 (Cayenne). Hypocnemis therese (part) Sclater, Cat. B. Brit. Mus..xv. p. 292, 1890 (Oyapoec, Cayenne). Hypocnemis nevia Brabourne & Chubb, B. 8. Amer. i. p. 218, no. 2142, 1912. Adult male. Head, upper back, scapulars, and lower back rust- brown, somewhat more rufous on the upper tail-coverts ; the feathers on the middle of the back have white bases which form a concealed dorsal white spot, the apical portion black with a pale STICTOMYRMORNIS. 71 fulvous pear-shaped mark at the tips ; tail similar in colour to the back but the feathers darker subterminally and edged with white at the tips; upper wing-coverts black minutely tipped with white on the lesser series, more broadly on the median and greater series where the white is tinged, more or less, with pale fulvous like the spots on the outer webs of the inner secondary- quills; outer edge of the bastard-wing white ; primary-coverts uniform black; inner webs of the primary and secondary quills blackish with pale edges, the outer margins like the back but darker towards the base ; the feathers on the top of the head have dark margins which impart a squamated appearance; base of the forehead and hinder face dark slate-grey; throat black; fore-neck and breast white with black tips to the feathers on the latter, the black increasing in extent on the sides of the breast ; abdomen, flanks, and under tail-coverts pale fulvous; under wing-coverts whitish, the outer margin black with minute white spots, the greater series brown like the quill-lining; lower aspect of tail brown with a dark subterminal band and whitish at the tip. Total length 111 mm., exposed culmen 15, wing 61, tail 38, tarsus 20. The male described was collected on the Ituribisi River in February 1907. Adult female. Similar to the adult male on the upper surface but differs below in the absence of the black on the throat, which is whitish, and the white on the fore-neck and breast, which is fulvous like the remainder of the under parts. Wing 58 mm. The female described was collected on the Kamakabra River in 1911. Breeding-season. Unknown in British Guiana. Nest. Unrecorded in British Guiana. Eggs. Undescribed from British Guiana. Range in British Guiana. Ituribisi River, Supenaam River, Bartica, Kamakabra River, Great Falls Demerara River (Mc Con- nell collection). Extralimital Range. Surinam (Penard), North Brazil. Habits. Unrecorded in British Guiana. 72 BIRDS OF BRITISH GUIANA, Genus PHLEGOPSIS Reichenb. Phlegopsis Reichenbach, Syst. Av. p. lvii, 1850. Type P. nigromaculata (Lafr. & D’Orb.). Fig. 384.—Phlegopsis nigromaculata. This genus is distinguished by the bare space round the eye, the nuchal crest, strong feet, and smooth tarsi. The billis sharply hooked, the exposed culmen about two-thirds the length of the tarsus. The wing is rounded, the fourth and fifth primaries longest and the third equal to the sixth in length. The tail is very slightly rounded, the onter feather on each, side being only about 3 mm. shorter than the midd.e ones. 394. Phlegopsis erythroptera. RUFOUS-WINGED- BARE-EYE. Formicarius erythropterus Gould, Ann. & Mag. Hist (2) xv. p. 345, 1855 (Demerara) ; id. P. Z. 8. 1855, p. 69. Phlogopsis erythroptera Sclater, Cat. B. Brit. Mus. xv. p. 301, 1890 (Demerara). Phlegopsis erythroptera Brabourne & Chubb, B. 8. Amer, i. p. 218, no. 2151, 1912. Adult (type of the species). Crown of head, sides of face, throat, and entire under surface black, including the under tail- coverts and under wing-coverts; upper back and upper wing- coverts black, the feathers narrowly edged with white, the median, greater series, and primary-coverts broadly tipped with chestnut ; basal portion of flight-quills and tips of secondaries chestnut, the remaining portion black ; lower back dusky black ; upper tail- coverts black tipped with maroon-chestnut; tail black above and below ; flight-quills below rufous at the base, hair-brown on the apical portion. PHLEGOPSIS.——FORMICARIUS. 73 Total length 159 mm., exposed culmen 17, wing 93, tail 58, tarsus 31. This species is not represented in the McConnell collection, and the description is taken from Gould’s type, which is now in the British Museum. Breeding-season. Unknown in British Guiana. Nest. Unrecorded in British Guiana. ggs. Undescribed from British Guiana. Range in British Guana. Demerara (Gould). Hetralimital Range. Surinam (Penard), North-west Brazil, BKeuador, Habits. Unrecorded in British Guiana. Genus FORMICARIUS Rodd. Formicarius Boddaert, Tabl. Pl. Enl. p. 43, 1783. Type # colma Bodd. Fig. 35.—Formicarius colma. This genus is distinguished by the olive-brown upper surface and glossy feathers on the fore part of the head. The bill is rather narrow and hooked at the tip. The wing is rounded, the third, fourth, and fifth primaries longest and equal, the second about equal to the sixth. ‘The tail, which is rather short and rounded, is a little more than half the length of the wing. The tarsus is scutellated and about a third longer than the exposed culmen. Coloration: male and female similar. Key to the Species. A. Crown of head chestnut in contrast to the back ; under tail-coverts like the abdomen... #. colma, p. 74. B. Crown of head chocolate-brown similar to the back: under tail-coverts chestnut in contrast CY HD PMU csc aay coe tbe nuvvendensudavneay Midas OPRMOREIR Pl. TO. 74 BIRDS OF BRITISH GUIANA. 395. Formicarius colma. BoppagErt’s Ant-THRUSH. Formicarius colma Boddaert, Tabl. Pl. Enl. p. 44, 1783 (Cayenne) ; Brabourne & Chubb, B. 8. Amer. i. p. 214, no. 2155, 1912. Myiothera colma Cab. in Schomb. Reis. Guian. iii. p. 686, 1848. Formicarius nigrifrons Gould, Ann. & Mag. Nat. Hist. (2) xvi. p. 344, 1855 (Chamicurros, on the eastern side of Peru) ; Salvin, Ibis, 1885, p- 429 (Camacusa, Bartica Grove); Sclater, Cat. B. Brit. Mus. xv. p. 303, 1890 (Demerara). Adult male. General colour above including the back, wings, and tail bronze-brown ; outer edge of bastard-wing pale orange like the basal portion of the primary-quills, terminal portion of the primary and secondary quills dark brown; tail-feathers blackish towards the tips ; fore part of head glossy black ; crown of head chestnut with black edges to the feathers, occiput and nape pale chestnut; sides of face, throat, and breast black fading to brown on the abdomen, flanks, and under tail-coverts; axillaries white at the base with blackish tips; inner and greater series of under wing-coverts blackish, the outer series and basal portion of quill-lining pale orange; apical portion of quill-lining and lower aspect of tail dark brown. Total length 150 mm., exposed culmen 17, wing 86, tail 49, tarsus 28. The male described was collected on the Supenaam River in 1910. Immature male. General colour above and below rust-brown ; crown of head, nape, and feathers round the eye chestnut, darker on the middle of the crown; cheeks, chin, and throat ferruginous, each feather minutely tinged with black. The black increases as age advances, and the throat becomes uniform black in the adult male. The immature male from which the description is taken has no exact locality. Adult female. Hinder crown, nape, back, wings, and tail similar to those of the adult male, but differs, however, in having the lores and throat white, breast dark slate-grey, becoming paler and inclining to white on the abdomen. Wing 85 mm. The female described was collected on the Kamakabra River in 1911; Immature female. Differs from the adult female described in FORMICARIUS. te being darker on the breast and abdomen and in haying the feathers of the cheeks, chin, and throat tipped with black. The description of the immature female is based on an exainple collected on the Supenaam River, 1910. According to Dr. Sclater (Catalogue of the Birds in the British Museum, xv. p. 302) the female is similar to the male and the young have the lores and throat varied with whitish. I am of opinion, however, that this is not the case. The fully adult female, I believe, is distinguished by its white lores, entire white throat, and more or less white on the abdomen. The young males have the lores and throat rufous (never white). The young females, on the other hand, never have the lores rufous but always white, and the feathers of the entire throat tipped with white. Whether the throat is entirely black in the first plumage isa problem that the present series, though fairly large, do not enable me to solve. Breeding-season. Unknown in British Guiana. Nest. Unrecorded in British Guiana. Eggs. Undeseribed from British Guiana. Range in British Guiana. Upper Takutu Mountains, Ituribisi River, Supenaam River, Bartica, Kamakabra River, Makauria River, Lower Mazaruni River, Abary River ‘(McConnell collec- tion) ; Demerara (Grown) ; Kamarang River, Bartica, Kamakusa ( Whitely). Extralimital Range. Surinam (Penard), Cayenne (Boddaert), Venezuela, Colombia, Ecuador, Peru. Habits. Schomburgk states (Reis. Guian. iii. p. 686) that he found this species in the woods up to an altitude of 4000 feet. It lives almost exclusively on the ground and feeds on insects, caterpillars, etc. Its note, which it utters from time to time, is a peculiar whistling noise. It is often observed following the armies of * Wander-Ants.” The ‘ Warraus” call it Hebakatinerarub. 396. Formicarius crissalis. RUFOUS-VENTED ANtT-THRUSH. Myiothera analis (nec d’Orb.), Cab. in Schomb. Reis, Guian. iii. p. 686, 1848. Myrmornis crissalis Cab. J. f. O. 1861, p. 96 (Roraima). HKormicarius hoffmanni Salvin (nec Cab.), Ibis, 1885, p. 429 (Camacusa). 76 BIRDS OF BRITISH GUIANA. Formicarius crissalis Sclater, Cat. B. Brit. Mus. xv. p. 305, 1890 (Carunang River, Takutu River); Brabourne & Chubb, B.S. Amer. i, p. 214, no. 2158, 1912. Adult. General colour of the upper surface bronze-brown in- cluding the wings, back, and tail; primary-coverts somewhat darker; inner webs of the primary and secondary quills dark brown, pale orange at the base; tail blackish towards the tip; the upper tail-coverts inclining to rufous; the feathers of the head have dark centres which impart a scalloped appearance ; lores, a narrow line over the eye, cheeks, and entire throat black with a white spot in the middle of the lores; hinder face, ear-coverts, and sides of neck cinnamon ; breast and lower flanks slate-grey becoming paler and inclining to white on the middle of the abdo- men; axillaries and sides of the body silky-white with dark tips to the feathers; under tail-coverts pale chestnut; under wing-coverts dark brown, the marginal series and basal portion of flight-quills below pale orange-buff, apical portion of quills below pale brown; under surface of tail dark brown with paler edges at the tips. Total length 164 mm., exposed culmen 21, wing 90, tail 49, tarsus 34. The bird described above was collected on the Bonasika River. The female of this species is not represented in the McConnell collection, but according to a specimen in the British Museum from Kamakusa, collected and sexed by Whitely, it would appear to be similar to the adult male. Wing 88 mm. A young bird from the Anarica River, collected in 1913, is similar on the upper surface to the adult described, but differs in having scarcely any black on the lores, the fore part of the face and throat dark brown with white bases and pale shaft-lines to the feathers, the cinnamon on the hinder face and sides of the neck only faintly represented, and the under wing-coverts not fully developed. The lower mandible and tip of the upper are almost white. Breeding-season. Unknown in British Guiana. Nest. Unrecorded in British Guiana. Leggs. Undescribed from British Guiana. Range in British Guiana. Ituribisi River, Supenaam River, Kamakabra River, Bonasika River, Anarica River’ (McConnell collection) ; Msini: Roraima (Schomburgk); Takutu River, Kama- rang River, Kamakusa ( Whitely). FORMICARIUS.—CHAM ZA. 77 Extralimital Range. Surinam (Penard), Cayenne (British Museum). Habits. Schomburek, on whose collection this species was founded, remarks (Reis. Guian. iii. p. 686) that he only met with it in the vicinity of the Roraima Mountains at an altitude of 4000 feet, where it frequents the lower bush. The “ Arekunas” call it Pairika. Genus CHAMZZA Vig. Chameza Vigors, Zool. Journ. ii. p. 395, 1825. Type C_ brevicauda (Vieill.). Fig. 36.—Chameza brevicauda. The species on which this genus was founded is more or less Thrush-like in appearance. The bill is small in proportion to the general size of the bird. The wing is almost square, the inner secondaries being only about 10 mm. shorter than the longest primaries, the third, fourth, and fifth primaries longest and equal, the second shorter than the sixth but longer than the seventh. 78 BIRDS OF BRITISH GUIANA. equal. The tarsus is somewhat long, being rather more than twice the length of the exposed culmen, and strongly scutellated. 397. Chameeza fulvescens. Mervume Ant-Turusu. (Plate I. fig. 2.) Chameza fulvescens Salvin & Godman, Ibis, 1882, p. 79 (Merumé Mts.); Salvin, Ibis, 1885, p. 429 (Camacusa, Roraima, 3500 ft.) ; Sclater, Cat. B. Brit. Mus. xv. p. 308, 1890 (Merumé Mts., Roraima); Brabourne & Chubb, B. 8. Amer. i. p. 215, no. 2166, 1912. Adult male. General colour above fulvous-brown including the head, back, wings, and tail; upper wing-coverts and inner webs of the primary and secondary quills rather darker than the back ; the lateral tail-feathers have a dark subterminal band and edged with white at the tips; the feathers covering the nostrils fulvous ; the feathers on the chin, cheeks, and behind the eye white marked with brown and tinged with fulvous ; sides of the neck like the back ; middle of throat white tinged with fulvous ; the feathers on the fore-neck fulvous margined with black; abdomen white, the feathers margined with black; sides of the body black, the feathers broadly margined on one side with white ; under tail-coverts blackish tipped with fulvous, some of the lateral ones showing more or less white; axillaries white edged or tipped with brown; under wing-coverts white tipped with brown; quill-— lining and under surface of tail pale brown, the latter having the tips of the feathers edged with white. Total length 195 mm., exposed culmen 24, wing 103, tail 61, tarsus 45. The above description is based on an example collected by Mr. F. V. McConnell at Mount Roraima in 1898. Adult female. Similar to the adult male, but rather smaller. Wing 98 mm. Breeding-season. Unknown in British Guiana, West. Unrecorded in British Guiana. Eggs. Undescribed from British Guiana. Range in British Guiana. Mount Roraima (McConnell collection) ; Merumé Mountains and Mount Roraima ( Whitely). Extralimital Range. Surinam (Penard). Habits. Unrecorded in British Guiana. Birds of British Guiana. Vot. TE PIsk 1. Hylopezus macconnelli. McConnell's Spotted-breasted Ant-Thrush. 2. Chameeza fulvescens. Merumé Ant-Thrush t~ A ai ye D Sofi ae Lise - os GRALLARIA. 79 Genus GRALLARIA Vieill. Grallaria Vieillot, Analyse nouv. Orn. p. 43, 1816. Type G. varia (Bodd.). f \ Ha a + "A thik) "I / Pi | } i ; iy ul lat Fig. 37.— Grallaria varia. This genus is characterized by the somewhat stout bill, short tail, and long legs. The depth of the bill is nearly equal to half the length of the exposed culmen, the nostrils are large and oval in shape. The wing is nearly square, the secondaries being about 14 mm. shorter than the longest primaries, the third, fourth, and fifth of the latter are longest and equal, the second being The tail is rounded, the four middle feathers longest and about 80 BIRDS OF BRITISH GUIANA. about equal to the sixth. The tail is short and square at the tip. The tarsus is long, being about one-fifth longer than the tail. Key to the Species. A. Larger; wing more than 90 mm. [p. 80. a. Abdomen bright rufous ................... G. regulus roraume, 6. Abdomen cream-colour.. enews. G. varia, pr 81. B. Smaller; wing less than 90 mm. c. Breast and sides of body grey streaked with white ....... ... G. brevicauda, p. 82. d. Breast and sides of body uniform: orey ... G. simplex, p. 83. 398. Grallaria regulus roraime, subsp. nov. FULVOUS-BREASTED ANT-THRUSH. Grallaria regulus (nec Scl.), Salvin, Ibis, 1885, p. 430 (Roraima, 50V0 ft.) ; Sclater, Cat. B. Brit. Mus. xv. p. 314, 1890 (Roraima) ; Brabourne & Chubb, B. 8. Amer. i. p. 216, no. 2178, 1912. Adult female. Differs from the type of G. r. regulus in being more grey on the top of the head, nape, and hind-neck; paler and more olive-brown on the back and the dark fringes to the feathers less pronounced; paler and more cinnamon-rufous on the outer aspect of the flight-quills; ear-coverts darker; throat more streaked with white or ferruginous ; fore-neck ferruginous intermixed with black, instead of uniform ochreous brown; breast, abdomen, and under tail-coverts paler and brighter ferruginous; and the larger size. Total length 170 mm., exposed culmen 23, wing 108, tail 39, tarsus 41. This subspecies is not represented in the McConnell collection. The type, which is in the British Museum, was collected by the late Henry Whitely on Mount Roraima, at an altitude of 5000 feet, on September the 13th, 1883, and is the only specimen that I have been able to examine from the Colony. Breeding-season. Unknown. Nest. Unrecorded. EEygs. Undescribed. Range conjined to British Guiana. Mount Roraima ( Wihitely). Habits. Unrecorded. GRALLARIA. 81 399. Grallaria varia. Royat Ant-THRUSH. Formicarius varius Bodd. Tabl. Pl. Enl. p. 44, 1783 (Cayenne). Grallaria varia Salvin, Ibis, 1885, p. 480 (Camacusa); Sclater, Cat. B. Brit. Mus. xv. p. 315, 1890 (Takutu River, Quonga River, Camacusa) ; Brabourne & Chubb, B. 8. Amer. i. p. 217, no. 2182, 1912. Adult male. General colour of the upper surface fulvous-brown with black edges to the feathers, including the fore part of the head and back; nape and hind-neck grey with black margins to the feathers; upper wing-coverts and outer aspect of flight-quills paler than the back and inclining to cinnamon-rufous with paler tips to the median and greater coverts, but darker on the primary- coverts; inner webs of flight-quills dark brown broadly margined with pale ferruginous on the basal portion; tail cinnamon-rufous; forehead, lores, and cheeks buffy-white; ear-coverts, sides of neck, throat, and fore-neck chestnut-brown with pale shaft-streaks to the feathers, which widen out and become white on the middle of the lower throat; breast, abdomen, and under tail-coverts pale ferruginous, darker and inclining to ochreous on the sides of the body ; under wing-coverts and inner edges of quills below pale cinnamon-rufous ; remainder of the quill-lining pale brown; lower aspect of tail cinnamon-brown. Total length 166 mm., exposed culmen 21, depth of bill 10, wing 110, tail 38, tarsus 48. Adult female. Similar to the adult male but everywhere paler both above and below. Wing 112 mm. Nestling. Cinnamon-rufous on the upper surface, brighter rufous on the tips of the greater upper wing-coverts and tips of flight-quills ; under parts darker and inclining to chocolate-brown on the fore-neck ; throat much paler cinnamon and almost naked. This species is not represented in the McConnell collection and the male and female described are in the British Museum—Salvin- Godman collection, and were collected by the late Henry Whitely at Kamakusa, and the nestling at Quonga, Potaro River. ; Breeding-season, Unknown in British Guiana. Nest. Unrecorded in British Guiana, Eggs. Undeseribed from British Guiana. VOL, Il. G © 82 BIRDS OF BRITISH GUIANA. Range in British Guiana. Kamakusa, Takutu River, Quonga River ( Whitely). Extralinital Range. Cayenne (Boddaert), North Brazil. Habits. Unrecorded in British Guiana. 400. Grallaria brevicauda. LirtLe Ant-THRUSH. Formicarius brevicauda Bodd. Tabl. Pl. Enl. p. 44, 1783 (Cayenne). Calobathris tinniens Cab. in Schomb. Reis. Guian. iii. p. 686, 1848. Grallaria brevicauda Salvin, Ibis, 1885, p. 480 (Camacusa, Bartica Grove); Sclater, Cat. B. Brit. Mus. xv. p. 321, 1890 (Camacusa, Bartica Grove); Brabourne & Chubb, B. 8S. Amer. i. p. 218, no. 2202, 1912. Adult male. General colour above rufous-brown including the head, back, wings, and tail; inner webs of the primary and secondary quills dark brown with paler margins ; ear-coverts like the back ; throat and under surface white edged with greyish brown on the breast and more broadly on the sides of the breast and sides of the body; axillaries and under wing-coverts cinna- mon-rufous, quill-lining also tinged with the same colour, apical portion of the quills below brown like the lower aspect of the tail. Total length 129 mm., exposed culmen 20, wing 80, tail 30, tarsus 40. The male described was collected at Bartica. Adult female. Similar to the adult male but rather smaller. Wing 77 mm. Breeding-season. Unknown. Nest. Unrecorded. Eggs. Undescribed. Range in British Guiana. Upper Takutu Mountains, Ituribisi River, Bartica, Kamakabra River, Makauria River, Arwye River, Tiger Creek, Arawai River (McConnell collection); Bartica, Kamakusa ( W hitely). Extralimital Range. Cayenne (Boddaert), Colombia, Ecuador, Peru. Habits. Unrecorded in British Guiana. Although Schomburgk met with this species he makes no remark in regard to its habits. GRALLARIA. HR oe 401, Grallaria simplex. GREY-BREASTED ANT-THRUSH. Grallaria simplex Salvin & Godman, Ibis, 1884, p. 451 (Mt. Roraima) ; Salvin, op. cit. 1885, p. 480 (Roraima, 5000 ft.) ; Sclater, Cat. B. Brit. Mus. xv. p. 322, 1890 (Roraima); Brabourne & Chubb, B. 8. Amer. 1. p. 218, no. 22038, 1912. Adult male. General colour of the upper surface chestnut- brewn including the crown of the head, entire back, wings, and tail, darker and more blackish brown on the inner webs of the flight-quills ; base of lores and short feathers surrounding the eye whitish with black bristly tips to the feathers ; throat and middle of abdomen dull white; breast and sides of body dusky grey ; under tail-coverts chestnut-brown ; thighs similar ; under wing- coverts chocolate-brown ; under surface of flight-quills rust-brown, paler on the inner edges. Total length 155 mm., exposed culmen 19, wing 85, tail 43, tarsus 43. Adult female. Similar to the adult male. Wing 78 mm. A young male collected in August differs from the adult in being darker and almost entirely grey on the breast and abdomen with the remains of a few bright rufous feathers on the latter, which points to the fact that the first plumage is much brighter. This species is not represented in the McConnell collection, and the descriptions are taken from the types in the British Museum, which were collected by the late H. Whitely on Mount Roraima in August and September, 1883, at an altitude of 5000 feet. Breeding-season. Unknown in British Guiana. Vest. Unrecorded in British Guaina. Eggs. Undescribed from British Guiana. Range confined to British Guiana. Mount Roraima ( Whitely). Hatits. Unrecorded. 84 BIRDS OF BRITISH GUIANA. Genus HYLOPEZUS Ridgw. Hylopezus Ridgway, Proc. Biol. Soc. Washington, xxii. April 17, 1909, p. 71. Type H. perspicillata (Lawr.). In this genus the bill is proportionately small, the exposed culmen being about equal to the hind toe and claw, and slightly hooked at the tip of the upper mandible. The wing is rounded, the third, fourth, fifth, and sixth primaries longest and about equal, the second about equal to the seventh. The tail is short, being only one-third longer than the exposed culmen. The tarsus is two-sevenths longer than the tail. The hind toe and _claw are about four-fifths the length of the middle toe and claw. 402. Hylopezus macularia macconnelli. McUonneELL’s SPOTTED-BREASTED ANT-THRUSH. (Plate I. fig. 1.) Calobathris macularia nec Temm., Cab. in Schomb. Reis. Guian. ii1. p-. 685, 1848. HYLOPEZUS. 85 _Groallaria macularia Salvin, This, 1885, p. 430 (Bartica Grove, Cama- cusa, Merumé Mts., Atapurow River) ; Sclater, Cat. B. Brit. Mus. xv. p. 324, 1890 (Bartica Grove, Merumé Mts., Camacusa, Atapu- row River); Brabourne & Chubb, B. 8. Amer. i. p. 219, no. 2209, 1912. . : Hylopezus macularia macconnelli Chubb, Bull. Brit. Orn. Club, Xxxviii. p. 86, July 25, 1918. Adulé male. General colour above olive-brown including the back, wings, and tail; upper wing-coverts tipped with rufous ; outer edge of bastard-wing, outer margin of outer primary, and the basal pertion of the quills rufous, inner portion of bastard- wing, primary-coverts, and inner webs of quills dark brown ; crown of head and nape slate-grey ; base of forehead with minute dark tips to the feathers; a ring of short rufous feathers encircling the eye; ear-coverts brown with pale streaks ; a dark streak from the gape across the face to below the ear-coverts, another one on the sides of the chin enclosing a white line between them; chin, throat, breast, and middle of abdomen white, the feathers margined with black; sides of body and under tail-coverts fulvous; under wing-coverts, axillaries, and’ quill-lining at the base rufous, remainder of the quill below brown. Total length 132 mm., exposed culmen 20, wing 88, tail 27, tarsus 34. The male from which the description is taken was collected on the Ituribisi River in August 1909. Adult female. Similar to the adult male. “Iris dark brown ; legs, toes, and claws purplish flesh-colour” (H. Whitely). Wing 79 mm. Breeding-season. Unknown in British Guiana. Nest. Unrecorded in British Guiana. Eggs. Undeseribed from British Guiana. Range in British Guiana. Upper Takutu Mountains, Ituribisi River, Makauria River, Mazaruni River (McConnell collection) ; Merumé Mountains, Kamarang River, Kamakusa, Bartica ( Whitely). Extralimital Range. Cayenne (Brit. Mus.), East Peru. Habits. Schomburgk states (Reis. Guian. iii. p. 685) that he met with this bird in the dense woods on the Pomeroon Liver, where it lives chiefly on the ground. Its nidification was unknown to him. Its food appeared to consist of insects only. 86 BIRDS OF BRITISH GUIANA. Genus GRALLARICULA Scl. Grallaricula Sclater, P. Z.S. 1885, p. 283. Type G. flavirostris Scl. Fig. 39.— Grallaricula flavirostris. This genus is characterized by its small size, short and narrow bill, the strongly pronounced rictal bristles, short tail, and slender feet. The depth of the bill is about half the length of the exposed culmen. The wing is rounded, the third, fourth, fifth, and sixth primaries longest and subequal, the second about equal to the eighth. The tail is short and nearly square at the tip, and only slightly longer than the tarsus. Coloration: male and female _ similar. 403. Grallaricula nana kukenamensis, KUKENAM AntT-THRUSH. Grallaricula nana (nec Lafr.) Salvin, Ibis, 1885, p. 430 (Kukenam, 5000 ft.) ; Sclater, Cat. B. Brit. Mus. xv. p. 327, 1890 (Kukenam). Grallaricula nana kukenamensis Chubb, Bull. Brit. Ornith. Club, xxxviii. p- 86, 1918. Adult female. Differs from an adult female of G. nana nana (Lafr.) from Bogota in being paler and inclining to ash-grey on the head and nape ; the back, wings, and tail paler and ochreous brown instead of chocolate-brown, the feathers round the eye ferruginous instead of black, throat and abdomen pale ferruginous instead of deep ferruginous (or “intense,” as Lafresnaye expressed “it), the thighs pale ferruginous instead of dusky, and in its smaller size. Total length 103 mm., exposed culmen 13, wing 62, tail 28, tarsus 23. This species is not represented in the McConnell collection, and the description is taken from the type in the British Museum, which was collected by the late Henry Whitely in the Kukenam Mountains, at an altitude of 5000 feet, on August 31, 1883 — Salvin-Godman collection. e GRALLARICULA.—FURNARIUS. 87 Breeding-season. Unknown in British Guiana. Nest. Unrecorded in British Guiana. Eggs. Undescribed from British Guiana. Range confined to British Guiana. Kukenam Mountains ( Whitely). Habits. Unrecorded. Family FURNARIIDA. This family consists of ten genera and about seventy-three species. Three of the genera and five of the species are repre- sented in British Guiana. Genus FURNARIUS Vieill. Furnarius Vieillot, Analyse Vune nouv. Ornith. element. p. 47, 1819. Type &. rufus (Gmel.). Fig. 40.—Furnarius rufus. The members of the present genus are distinguished by having the exposed culmen about equal in length to that of the middle toe and claw. ‘The wing is almost square, the secondaries being only about 5 mm. shorter than the primaries, the third, fourth, fifth, and sixth primaries longest and subequal, the second about equal to the seventh. The tail is slightly rounded and rather more than half the length of the wing, and the tarsus about the same length as the tail. Coloration: male and female similar, 404. Furnarius leucopus leucopus. WHITE-EYEBROWED QOVEN-BIRD. Furnarius leucopus Swains. Anim. in Menag. p. 325, 1888 (Guiana) ; Cab. in Schomb. Reis. Guian. iii. p. 688, 1848; Salvin, Ibis, 1885, p- 418; Sclater, Cat. B. Brit. Mus. xv. p. 18, 1890 (British Guiana); Brabourne & Chubb, B. 8, Amer. i. p. 222, no, 2239, 1912. Adult male. General colour above cinnamon-rufous, including 88 BIRDS OF BRITISH GUIANA. the entire back, wings, and tail, somewhat darker and inclining to chestnut on the upper wing-coverts; bastard-wing, primary- coverts, and primary-quills dark brown, the outer webs and some of the tips of the last more or less marked with rufous; outer edge of wing buffy-white, the inner webs pale rufous on the basal portion, decreasing in extent on the outer quills and becomes a spot only on the third primary ; crown of head earth-brown, the forehead and lores rather paler; a whitish line on the sides of the crown behind the eye; chin and throat white; sides of the face and .fore-neck pale cinnamon-rufous, somewhat paler on the breast, abdomen, sides of the body, Jower flanks, and thighs ; middle of the abdomen and under tail-coverts dull white, the latter having dark bases to the feathers; under wing-coverts similar to the upper surface, except those at the base of the outer primary which are whitish ; quills dark brown below with a pale rufous patch; lower aspect of tail similar to that above. Total length 168 mm., exposed culmen 20, wing 88, tail 51, tarsus 29, middle toe and claw 19. Adult female. Similar to the adult male but slightly smaller. — Wing 83 mm. The birds described were collected in the Upper Takutu Mountains. Breeding-season. Unknown in British Guiana. Nest. Unrecorded in British Guiana. /ggs. Undescribed from British Guiana. Range in British Guiana. Upper Takutu Mountains, Upper Takutu River, Ireng River (McConnell collection) ; Demerara (Brown). Lxtraliimital Range. Surinam (Penard), North-west Brazil. Habits. Schomburgk states (Reis. Guian. iii. p. 688) that he first met with this bird in the neighbourhood of the Pirara River, where it enlivens the bush near the banks. It is never still and all the time’ uttering its piercing loud note, more persistently at dawn and sunset. It is usually met with in pairs. The ‘“‘ Macusis ” call it Nomaiko. ee) iJ) LOCHMIAS. Genus LOCHMIAS Swains. Lochmias Swainson, Zool. Journ. iii. p. 355, 1827. Type LZ. nematura (Licht. ). Fig. 41.—Lochmias nematura. The birds on which this genus is based are rather small in size and contain only two species and one subspecific form. The bill, which is almost straight, is slender and about two-thirds the length of the tarsus. The wing is rounded. The tail is somewhat stiffened and fan-shaped and nearly two-thirds the length of the - wing. The tarsus is slender and proportionately long, with searcely any trace of scutes. The distribution is confined to South America. Coloration: male and female similar. 405. Lochmias nematura castanonota. CHESTNUT-BACKED SHARP-TAILED CREEPER. Lochmias nematura (nee Licht.) Salvin, Ibis, 1885, p. 418 (Kukenam Mountains, 5000 ft.); Sclater, Cat. B. Brit. Mus. xv. p. 28, 1890 (“ River Arranparu,” Kukenam). Lochmias nematura castanonota Chubb, Bull. Brit. Orn. Club, xxxviii. p. 87, July 1918. Adult female. Similar to L. nematura nematura (Licht.) from South-east Brazil, but differs in being rich chestnut-brown on the upper surface, the white on the under surface more restricted, the white shaft-lines on the under tail-coverts much less extensive and almost obsolete, and the smaller measurements. Total length 146 mm., exposed culmen from anterior part of nostrils 14, wing 64, tail 43, tarsus 23. This subspecies is not represented in the McConnell collection and the description is taken from the type in the British Museum, which is the only known example. It was collected by the late Henry Whitely on the Aruparu Riverinthe Kukenam Mountains at an altitude of 5000 ft. on the 29th of August, 1883. 9) BIRDS OF BRITISH GUIANA. Breeding-season. Unknown in British Guiana. Nest. Unrecorded in British Guiana. Eggs. Undescribed from British Guiana. Range in British Guiana. Kukenam Mountains ( Whuitely). Extralimital Range. Surinam (Penard). Halits. Unrecorded in British Guiana. Genus SCLERURUS Swains. Sclerurus Swainson, Zool. Journ. iii. p. 356, 1827. Type S. umbretta (Licht.). Fig. 42.—Sclerurus umbretta. The members of this genus are similar in general form to those of Lochmias but larger birds, and their geographical distribution extends to Central America as far as Mexico. The bill is long SCLERURUS. 91 and nearly straight. The wing is rounded, the third, fourth, and fifth primaries longest and equal, the second shorter than ‘the fifth but longer than the sixth, and the first about equal in length to the eighth. The tail is stiffened, rounded at the tip, and rather less than two-thirds the length of the wing. The tarsus is proportionately short, being about equal in length to that of the exposed culmen. Coloration: male and female similar. Key to the Species. A. Throat fawn-colour. a. Larger, wing more than 82 mm., culmen More thay AM. yee eA ee S. caudacutus, p. 91. 6. Smaller, wing less than $2 mm., culmen Testi fnatt 20 my :. ements. ssa S. rufigularis, p. 92. B. Throat bright ferruginous; culmen 26 mm., WIE BOh i nese sen ae ees cos 1 Me MacCoUnelle, p. 92. 406. Sclerurus caudacutus. BLACK-TAILED LEAFSCRAPER. Thamnophilus caudacutus Vieill. N. Dict. d’ Hist. Nat. ui. p. 810, 1816 (Cayenne). Sclerurus caudacutus Salvin, Ibis, 1885, p. 419 (Bartica Grove, Cama- cusa, Merumé Mts., Atapurau River); Sclater, Cat. B’ Brit. Mus. xv. p. 116, 1890 (Merumé Mts., Bartica Grove, Attapurow River, Camacusa, Carimang River); Brabourne & Chubb, B. 8. Amer. i. p. 246, no. 2497, 1912. Sclerurus caudacutus caudacutus Hellm. Nov. Zool. xiv. p. 56, 1907. Adult male. General colour above and below umber-brown, paler and more rufescent on the lores, fore part of the head, sides of the face, and fore-neck ; chin and throat paler and inclining to fawn-colour ; inner webs of the flight-quills somewhat darker than the outer ones; tail blackish; under wing-coverts rufescent ; quills below greyish brown ; lower aspect of tail similar to that above. Total length 161 mm., exposed culmen 20, wing 91, tail 68, tarsus 23. The bird described was collected on the Ituribisi River in August 1909. Adult female. Similar to the adult male. Wing 89 mm. An immature bird from the Anarica River is similar to the adult but everywhere less bright in colour. Breeding-season. Unknown in British Guiana. Nest. Unrecorded in British Guiana, 92 BIRDS OF BRITISH GUIANA. Eggs. Undescribed from British Guiana. Range in British Guiana. Ituribisi River, Supenaam River, Bartica, Kamakabra River, Anarica River, Great Falls Demerara River (McConnell collection) ; Kamakusa, Merumé Mountains, Atapurow River, Kamarang River (Whitely). Extralimital Range. Surinam (Penard), Cayenne (Vieillot), Rio Capim, Para ( Wallace). Habits. Unrecorded in British Guiana. 407. Sclerurus rufigularis. PELZELN’S BLACK-TAILED LEAFSCRAPER. Sclerurus rufigularis Pelzeln, Orn. Bras. pp. 87, 161, 1869 (Borba and Marabitanas); Brabourne & Chubb, B. S. Amer. i. p. 247, no. 2505, 1912. Sclerurus caudacutus Sclater, Cat. B. Brit. Mus. xv. p. 116 (part, specimens h, 2), 1890. Adult male. General colour above and below dark chocolate- brown; inner webs of flight-quills brown ; upper tail-coverts inclining to chestnut ; tail blackish ; a narrow line over the eye, sides of face, and throat pale rufescent ; under wing-coverts rust-brown; under surface ot quills pale brown ; lower aspect of tail blackish. ; Total length 137 mm., exposed culmen 19, wing 80, tail 55, tarsus 21, The male described was collected on the Supenaam River in 1910. Adult female. Similar to the adult male. Wing 77 mm. Breeding-season. Unknown in British Guiana. Nest. Unrecorded in British Guiana. Eggs. Undescribed from British Guiana. Range in British Guiana. Supenaam River, Makauria River, Anarica River (McConnell collection); Kamarang River, Ourumee, Takutu River, Bartica ( W hitely). Extralimital Range, Northern Brazil. Ffabits. Unrecorded in British Guiana. 408. Sclerurus ‘mexicanus macconnelli. McConneEtu’s LEAFSCRAPER. Sclerurus mexicanus macconnelli Chubb, Bull. Brit. Orn. Club, xxxix. p- 41, Dec. 1918. : Sclerurus mexicanus (nec Scl.) Brabourne & Chubb, B. 8. Amer. i. p. 246, no. 2503, 1912. SCLERD RUS.—SYNALLAXIS. 93 Adult male. General colour above and below rust-brown tinged with olive, including the head, back, and wings on the upper parts and the abdomen, sides of body, and under tail-coverts on the under surface; inner webs of flight-quilis brown with pale inner edges; upper tail-coverts dark chestnut in contrast with the back ; tai] dark brown, or blackish, with obsolete bars ; head somewhat darker than the back, and the feathers being short and rounded imparts a more or less scalloped appearance; sides of the face, throat, and breast bright ferruginous, rather darker on the last ; under wing-coverts pale rufous ; under surface of quills pale brown ; Jower aspect of tail blackish. Total length 118 mm., exposed culmen 26, wing 80, tail 58, tarsus 22. The type from which the description is taken was collected on the Ituribisi River in February 1907. In the British Museum there is a male specimen of this bird, "which was collected at Ourumee on the 3rd of October, 1890, by the late Henry Whitely and is identical with the type described. Breeding-season. Unknown in British Guiana. Nest. Unrecorded in British Guiana. Lggs. Undescribed from British Guiana. Rangein British Guiana. Ituribisi River (McConnell collection) ; Ourumee ( Whitely). Extralimital Range. Surinam (Penard). Habits. Unrecorded in British Guiana. Family SYNALLAXIDAL. This family consists of about twenty-five genera and about two hundred and sixteen species. Five of the genera and about twelve of the species are represented in British Guiana. Genus SYNALLAXIS Vieill. Synallavis Vieillot, N. Dict. d Hist. Nat. xxxii. p. 809, 1819. Type S. ruficapilla Vieill. Fig. 43.—Synallacis ruficapilla. 94 BIRDS OF BRITISH GUIANA. _ The species on which this genus was founded are small and slender birds with short wings and long tails. The bill is slender and pointed, and the exposed culmen only slightly more than half the length of the tarsus. The wing is small and rounded, the fourth and fifth primaries longest, the third slightly longer than the sixth, and the second about equal to the seventh. ‘The tail is long, and soft in texture, and exceeds the length of the wing by about the length of the tarsus. The tarsus, which is somewhat long, is smooth and slender. Key to the Species. A. Crown of head rufous. a. Abdomen and sides of body similar in colour; tail rufous. a’. Ear-coverts pale brown with whitish SmaTiHeincune ce. A Ret S. poliophrys, p. 94. b'. Ear-coverts uniform blackish ......... S. macconnelli, p. 95. b. Abdomen white in contrast to the flanks; [p. 96. tail DroWD............-sessesseesssceceeeee--e N.albigularisjosephina, B. Crown of head brown. 4 c. Abdomen dark ochreous buff............... S. guianensis, p. 97. d. Abdomen white ............s.ec0e.sessseeeeee S. commamomea, p. 98. e. Abdomen streaked with buffy-white...... S. adusta, p. 100. 409. Synallaxis poliophrys. GREY-BROWED SPINE-TAIL. Synallaxis poliophrys Cab. J. £. O. 1866, p. 807 (“ Cayana”’) ; Sclater, Cat. B. Brit. Mus. xv. p. 39, 1890 (Roraima) ; Brabourne & Chubb, B.S. Amer. i. p. 228, no. 2303, 1912. Synallaxis demissa Salvin & Godman, Ibis, 1884, p. 449 (Roraima, 5000 to 6O00U ft.) ; Salvin, Ibis, 1885, p. 420. Adult male. Crown of head, nape, upper wing-coverts, upper tail-coverts, and tail both above and below rufous, inner webs of flight-quills dark hair-brown with cinnamon-butf on the inner edges; back olive-brown ; sides of the face and sides of the body dusky ochreous brown ; a pale narrow line over the eye and along the sides of the crown; base of lores and chin, white with black hair-like tips to the feathers; throat, breast, and abdomen dark ash-grey ; thighs and under tail-coverts ochreous ; under wing- coverts and inner edges of quills below pale cinnamon-butt, remainder of quill-lining dark hair-brown. Total length 145 mm., exposed culmen 13, wing 61, tail 69, tarsus 18. . Adult female. Similar to the adult male. Wing 60 mm. SYNALLAXIS. 95 The descriptions of the adult male and female are based on specimens in the British Museum collected on Mount Roraima by H. Whitely at an altitude of 5000 to 6000 ft. in August and September, 1883. Immature. Crown of head, wings, upper tail-coverts, and tail chestnut, inner webs of the bastard-wing and primary-coverts dark brown, as are also those of the primary and secondary quills, which are edged with pale rufous; hind-neck, mantle, and back rufous-brown ; base of forehead, sides of the face, breast, and abdomen dusky brown, the shafts of the feathers on the ear- coverts rather paler and somewhat contrasting ; throat inclining to whitish ; under tail-coverts rufous-brown ; under wing-coverts rufous ; quills brown below with rufous inner edgings; lower aspect of tail similar to that above. Total length 137 mm., exposed culmen 13, wing 61, tail 65, tarsus 22. The immature bird described was collected by Mr. McConnell at Mount Roraima in October 1898. Breeding-season. Unknown in British Guiana. Nest. Unrecorded in British Guiana. Eggs. Undescribed from British Guiana. Range in British Guiana. Mount Roraima (J/eConnell collection) ; Mount Roraima ( Whitely). Extralimital Range. Surinam (Penard), Cayenne (Cabanis). Habits. Unrecorded in British Guiana. 410. Synallaxis macconnelli. McConneEL_’s SPINE-TAIL. Synallaxis brunneicauda (nec Scl.) Salvin, Ibis, 1885, p. 419 (Roraima, 3500 to 5000 ft.) ; Sclater, Cat. B. Brit. Mus. xv. p. 41 (part), 1890. Synallaxis brunneicaudalis Brabourne & Chubb, B. 8. Amer. i. p. 223, no. 2811, 1912. Synallaxis macconnelli Chubb, Bull. Brit. Orn. Club, xxxix. p.78, April 1919. Adult male. General colour above including the entire back dull brown, becoming tinged with rufous on the tail; upper wing- coverts and outer aspect of wing chestnut; inner webs of primary and secondary quills brown with pale rufous edgings ; crown of head and hind-neck chestnut ; sides of face and under surface of body dusky brown; throat silvery grey, with dark brown 96 : BIRDS OF BRITISH GUIANA. bases to the feathers; under wing-coverts rufous; quill-lining dark brown, with pale rufous edgings to the inner webs; lower aspect of tail rufous, rather paler than the upper surface. Total length 141 mm., exposed culmen 14, wing 63, tail 64, tarsus 23. The bird from which the description is taken was collected hy Mr. McConnell at Mount Roraima during his expedition in October 1898. Adult female. Differs from the adult male in being rather paler and inclining to smoke-brown on the under surface. Wing 61 mm. There appears to be some doubt as to whether the species S. brunneicaudalis Sclater, occurs in British Guiana, as when the late Dr. Sclater wrote Vol. xv. of the ‘Catalogue of Birds in the British Museum’ there was but one specimen of that species from Ecuador, and that is certainly not the same as the Guiana bird. I have therefore described the latter as a distinct species. Breeding-season. Unknown. Nest. Unrecorded. Eggs. Undeseribed. Range confined to British Guiana. Mount Roraima (Me Connell collection) ; Mount Roraima ( Whitely). Habits. Unrecorded. 411. Synallaxis albigularis josephine. JOSEPHINE’S WHITE-THROATED SPINE-TAIL. Synallaxis albescens (nec Temm.) Salvin, Ibis, 1885, p. 419 (Merumé Mts., Roraima 3500 ft.); Sclater, Cat. B. Brit. Mus. xv. p. 43, 1890 (Merumé Mts., Roraima). Synallaxis albiqularis (nec Scl.) Brabourne & Chubb, B. 8. Amer. i. p- 229, no. 2317, 1912. ; Synallaxis albigularis josephine Chubb, Bull. Brit. Orn. Club, xxxix. p. 60, Feb. "28, 1919. | Adult male. General colour above earth-brown including the fore part of the head, hind-neck, entire back, primary and secondary quills, and tail; crown and upper wing-coverts chest- nut; inner webs of greater upper wing-coverts dark brown ; sides of the face, sides of neck, breast, sides of the body, thighs, and under tail-coverts dusky grey ; throat and middle of abdomen white ; under wing-coverts pale buff; quill-lining and lower aspect of tail pale brown. . SYNALLAXIS. 97 Total length 149 mm., exposed culmen 14, wing 60, tail 72, tarsus 21. The birds from which the descriptions are taken were collected by Mr. McConnell at Mount Roraima in October 1898. There is another male specimen from the same locality in which the tail measures 79 mm. An immature bird, also collected by Mr. McConnell at Mount Roraima in October 1898, is similar to the adult on the upper surface, but the rafous patch on the nape is more restricted ; under surface for the most part pale ochreous. Adult female. Similar to the adult male but slightly paler in colour boih above and below. Wing 58 mm. There is also an immature bird, sexed as female, in the British Museum which is rust-brown on the whole of the upper surface ; under surface fulvous or tawny, inclining to white on the throat and lower abdomen. Having compared and measured a series of eleven birds from Ecuador, which is the type locality of S. albigularis albigularis, and East Peru, with eight others from British Guiana, I find that the latter are darker rufous on the hinder crown and nape and have the wing and tail measurements larger. This subspecies is named in honour of Mrs. F. V. McConnell’s only daughter. Breeding-season. Unknown in British Guiana. Nest. Unrecorded in British Guiana. Eggs. Undescribed from British Guiana. Range in British Guiana. Mount Roraima, Upper Takutu Mountains, Ituribisi River, Bonasika River, Abary River (M/eCon- nell collection); Merumé Mountains and Mount Roraima ( W hitely). Eatralimital Range. Surinam (Penard). 412. Synallaxis guianensis. GUIANA SPINE-TAIL. Motacilla guianensis Gmel. Syst. Nat. i. p. 988, 1789 (Guiana). Synallaxis guianensis Salvin, Ibis, 1885, p. 419 (Bartica Grove) ; Sclater, Cat. B. Brit. Mus. xv. p. 46, 1890 (Bartica Grove) ; Brabourne & Chubb, B. 8. Amer. 1. p. 280, no. 2321, 1912. Adult male. Head, seapulars, and back dark earth-brown with a slight tinge of rufous on the back and scapulars, and the feathers on the fore part of the head have dark centres which impart a more or less scalloped appearance; wings and tail chestnut ; VOL. II. iB 98 BIRDS OF BRITISH GUIANA. inner webs of primary and secondary quills dark brown, diminish- ing in extent towards the inner quills where it is restricted to the ° tips of the feathers only, the basal portion being chestnut; sides of face pale brown, lores white at the base and dusky on the tips ; chin and throat white; breast, abdomen, and under tail-coverts pale rust-brown; sides of the body and flanks rufous-brown ; under wing-coverts and axillaries pale chestnut like the basal portion of the quills below; apical portion of quills below dark brown ; lower aspect of tail like that of its upper surface. Total length 140 mm., exposed culmen 15, wing 61, tail 70, tarsus 25. Adult female. Similar to the adult male. Wing 57 mm. The male described was collected at Bartica in 1911. There is a specimen from the Rio Negro, collected by Natterer, in the British Museum which was said by the late Dr. P. L. Sclater to be S. inornata Pelzeln. This bird appears to me to be quite different from S. guianensis and is worthy at least of sub- specific rank. I would suggest, therefore, that it be called Synallaxis guianensis inornata. Breeding-season. Unknown in British Guiana. Nest. Unrecorded in British Guiana. Eggs. Undescribed from British Guiana. Range in British Guiana. Supenaam River, Bartica (J/e Connell collection) ; Bartica ( W hitely). Extralimital Range. Surinam (Penard), Venezuela, Colombia, North Brazil. 413. Synallaxis cinnamomea. YELLOW-THROATED SPINE-TAIL. Certhia cinnamomea Gmel. Syst. Nat. i. p. 480, 1788 (Guiana). Synallaxis ruficauda (nec Vieill.) Cab. in Schomb. Reis. Guian. iii. p- 689, 1848. Synallaxis cinnamomea Salvin, bis, 1885, p. 419; Sclater, Cat. B. Brit. Mus. xv. p. 50, 1890; Lloyd-Price, Timehri (2) v. p. 64, 1891 (nest and eggs); Quelch, tom. cit. p. 92 (Georgetown); Lloyd, op. cit. (2) xi. p. 6, 1897 (nest and eggs); Beebe, Our Search for a Wilderness, p. 304 (Aremu), p. 379 (Abary), 1910; Brabourne & Chubb, B. 8S. Amer. i. p. 230, no. 2332, 1912. * Rootie” (Quelch) ; “Little Spine-tail ” (C. A. Lloyd), Aduit male. General colour above rufous-brown, including the head, scapulars, and back, being somewhat darker on the head and SYNALLAXIS. 99 more rufous on the rump and upper tail-coverts; wings chestnut, with more or less brown on the bastard-wing and primary-coverts and on the apical portion of the primary and secondary quills— the first or outermost primary almost entirely brown; tail chestnut but rather paler than the wings; an obsolete whitish line from the lores to above the eye ; throat, breast, and abdomen white with a tinge of yellowish buff ; sides of the body, under tail-coverts, and under wing-coverts buff; inner edges of quills below cinnamon, remainder of the under surface of the quills brown; lower aspect of the tail similar to that of the upper surface. Total length 140 mm., exposed culmen 14, wing 57, tail 59, tarsus 21. The male from which the description is taken was collected on the Abary River in Noyember 1906. Adult female. Similar to the adult male, but not quite so dark in plumage and slightly smaller in wing-measurement. Wing o4+ mm. Breeding-season. Unrecorded in British Guiana. vest. ‘The nest is tunnel-shaped, built of dry pimpler sticks, and exceedingly large for the size of the bird” (H. Lloyd Price). “Jt builds its cumbersome nest in close proximity to those of wasps” (C. A. Lloyd). Eggs. “The eggs are of a dull white” (H. Lioyd Price). “The eggs are dull white and usually four in number” (C. A. Lloyd). Range in British Guiana. Upper Takutu Mountains, Bartica, Bonasika River, Abary River, Anarica River (J/eConnell collec- tion) ; Annai ( Whitely). Extralimital Range. Surinam (Penard), Trinidad, Venezuela, Colombia. Habits. Schomburgk states (Reis. Guian. ili. p. 689) that he met with this bird in fairly large numbers in the Canuku Moun- tains, where it frequented the lower dense bushes. Mr. H. Lloyd Price writes (Timehri (2) v. p. 64) :—“ Another nest of dry pimpler sticks is that of a smali brown bird commonly called the ‘ Rutie’ (Synallaxis cinnamomea). The nest is tunnel- shaped, and exceedingly large for the size of the bird, and may be found almost everywhere. The eggs are dull white.” The following note is quoted from Mr. J. J. Quelch (Timehri (2) v. pp. 92, 93), who observed this species in Georgetown and remarks ;—** Quite different from the preceding tyrant birds, but H 2 100 BIRDS OF BRITISH GUIANA. inhabiting the same districts on the outskirts of the city, are the little ‘ Spine-tails,’ commonly known as ‘ Rootie’ (Synallazis cin- namomea), evidently so named from its ery. ‘“‘ These little spine-tails are the only town representatives of the large family of ‘ American Bush-creepers’ or ‘ Spine-tails’ (Den- drocolaptide), which altogether number more than 200 species. They are usually, throughout the family, of some shade of brown ; d in their bills, feet, and spiny tails, the typical forms approach the true Creepers of the Old World, with which they closely agree in habits. They are, however, chiefly forest birds, and but few of them, as in our common ‘ Rootie,’ resort to the reeds and rushes in open swampy lands, and to the low bush in waste or grassy places.” The following note has been copied from Mr. C. A. Lloyd (Timehri (2) xi. p. 6): writing on the nesting of some Guiana birds he remarks:—* The little Spine-tai! (Synallazis cinnamomea), or ‘ Rootie’ as it is called here, also builds its cumbersome nest in close proximity to those of wasps, and singularly enough, as if not satisfied with the protection afforded by these pugnacious neigh- bours, it invariably attaches a portion of the cast skin of a snake on the outside, possibly as an additional warning to its enemies. The eggs of the ‘Rootie’ are dull white and usually four in number. Sometimes one or two strange bluish eggs are found with them, but no one seems to be acquainted with the bird to which they belong.” Mr. Beebe (Our Search for a Wilderness, p. 379) writes:— “The little ‘ Rooties,’ or Cinnamon Spine-tails—absurdly Wren- like but in reality Woodhewers which have deserted tree-trunks for reeds—showed us their homes, concealed in great untidy balls of twigs. As they flit here and there through the bushes and grasses, they let off a sound like a miniature rattle.” 414, Synallaxis adusta. Roraima SPINE-TAIL. Synallaxis adusta Salvin & Godman, Ibis, 1884, p. 450 (Mount Roraima) ; Salvin, Ibis, 1885, p. 419 (Roraima, 5000 to 6000 ft.) ; Sclater, Cat. B. Brit. Mus. xv. p. 55, pl. ii., 1890 (Roraima) ; Brabourne & Chubb, B. 8. Amer. i. p. 232, no. 2344, 1912. Adult male. General colour of the upper surface dark chestnut kiown, rather darker on the head; inner webs of the bastard-wing, 3 i ~~ ee | 1 3 « 7 _? Birds of British Gutana. Berlepschia rikert. Riker’s Pointed-tail. VoL TEPC IE SYNALLAXIS.—BERLEPSCHIA. 101 primary-coverts, primary and secondary quills blackish ; ear- coverts like the back; cheeks, throat, breast, and abdomen smolksy- white, the feathers on the breast and abdomen margined with coffee-brown ; sides of the body and under tail-coverts cotfee- brown; under wing-coverts buff; under surface of quills dark brown ; lower aspect of tail chestnut-brown. Total length 130 mm., exposed culmen 15, wing 65, tail 66, tarsus 20. The male described above was collected by Mr. McConnell at Mount Roraima in October 1898. Adult female. Similar to the adult male. Wing 66 mm. Breeding-season. Unknown. Nest. Unrecorded. Eggs. Undescribed. Range conjined to British Guiana. Mount Roraima (Je Connell collection) ; Mount Roraima ( Whitely). Habits. Unrecorded. Genus BERLEPSCHIA Ridgway. Berlepschia Ridgway, Proc. U.S. Nat. Mus. x. p. 151, 1887. Type B. rikeri (Ridgway). _ This: monotypic genus, which has no very near ally, has a somewhat long and pointed bill, the ridge of the culmen and the keel of the lower mandible narrow, and the feathers at the base of the forehead encroaching on to the posterior portion of the nostrils. The wing is pointed, the second and third primaries longest and equal, the first slightly shorter than the fourth but much longer than the fifth. The tail, which is about four-fifths the length of the wing, is rounded and graduated, the feathers are soft and pointed at the tips. The tarsus is slightly shorter in length than the exposed culmen, the hinder toe and claw about equal in length to that of the middle toe and claw. 415. Berlepschia rikeri. Riker’s PoInreD-TAIL. (Plate II.) Picolaptes rikeri Ridgway, Proc. U.S. Nat. Mus. ix. p. 523, 1886 (Santarem ). Berlepschia rikeri Ridgway, Proc. U.S. Nat. Mus. x. p. 151, 1887; Sclater, Ibis, 1889, p, 351; pl. xi.; id. Cat. B. Brit! Mus. xv, p. 79, 102 BIRDS OF BRITISH GUIANA. 1890; Brabourne & Chubb, B. S. Amer. i. p. 288, no. 2415, 1912; Chubb, Bull. Brit. Orn. Club, xxxi. p. 39, 1918 (Supenaam River, British Guiana). Adult (unsexed). Entire back, upper wing-coverts, innermost secondaries, and tail rufous-chestnut; bastard-wing, primary- coverts, primary and secondary quills dark brown, some of the secondaries rufous-chestnut on the outer webs; crown of head, nape, and sides of neck black with white shaft-lines to the feathers, the white increasing in width on the nape and sides of the neck ; ear-coverts, cheeks, and throat white with dark brown margins to the feathers ; fore-neck and upper breast also white, with black semicircular spots on the margins of the feathers, the white decreasing and the black increasing on the lower breast and abdomen ; lower flanks and under tail-coverts black barred with white ; under wing-coverts barred or spotted with brown ; under surface of quills greyish brown ; lower aspect of tail rufous. Total length 197 mm., exposed culmen 25, wing 102, tail 85, tarsus 22. The bird described was collected on the Kamakabra River in 1911. Breeding-season. Unknown in British Guiana. Nest. Unrecorded in British Guiana. i-gas. Undeseribed from British Guiana. Range in British Guiana. Supenaam River, Kamakabra River (Mfc Connell collection). Eetralimital Range. Santarem, Northern Brazil. Habits. Unrecorded in British Guiana. Genus AUTOMOLUS Reichenb. Automolus Reichenbach, Handb. sp. Orn. p. 178, 1853. Type A. leuco- phthalmus (Wied). Fig. 44.—Automolus leucophthalmus. The species on which this genus is based is more or less ‘AUTOMOLUS. 103 Thrush-like in size and general appearance. The bill is somewhat stout, its depth, at the fore part of the nostrils, is about one-third the length of the exposed culmen. The wing is rather pointed, the third, fourth, and fifth primaries longest and subequal, the second is rather shorter than the sixth. The tail is somewhat long and rounded at the tip, the feathers rather wide, the four middle ones longest, and their length about six-sevenths that of the wing. The tarsus is about equal in length to the middle toe and claw. Coloration: male and female similar. Key to the Species. A. Abdomen ochreous-brown; under tail-coverts rufous. a. Throat cream-colour; no superciliary [p. 103. line along sides of the crown ............. A. ¢. macconnelli, b. Throat white; a white superciliary line which extends behind the eye and along the sides Of the Crown ........000..cese0e0e A. albigularis, p. 104. B. Abdomen and under tail-coverts grey ....., A. cervicalis, p. 105. 416. Automolus turdinus macconnelli. McConneit’s AUTOMOLUS. Philydor turdinus (nec Pelz.) Salvin, Ibis, 1885, p. 420 (Bartica Grove). Cree ie turdiuus (nec Pelz.) Sclater, Cat. B. Brit. Mus. xv. p. 93, 1890 (Bartica Grove); Brabourne & Chubb, B. S. Amer. 1. p. 241, no. 2441, 1912. Automolus turdinus macconnelli Chubb, Bull. Brit. Orn. Club, xxxix. p. 60, 1919. Adult male. Head, back, and wings fawn-brown, head some- what darker than the back and squamated in appearance ; primary and secondary quills brown on the inner webs which are edged with buff on the basal portion; rump, upper tail-coverts, and tail rufous-chestnut ; the short feathers on the loral space and ring round the eye pale fawn-colour, with black hair-like tips to the feathers ; upper cheeks and ear-coverts similar to the back, with pale shaft-lines to the feathers of the latter ; chin and upper throat buffy-white followed by pale fawn-colour on the lower cheeks and lower throat ; breast, abdomen, and sides of the body ochreous brown; under tail-coverts rufous-chestnut ; under wing- coverts and inner lining of quills cinnamon-rufous ; tips of quills below pale brown; lower aspect of tail rufous. 104 BIRDS OF BRITISH GUIANA. Total length 180 mm., exposed culmen 21, wing 89, tail 71, tarsus 22, Adult female. Similar to the adult male but rather smaller. Wing 85mm. The type from which the description is taken was collected on the Ituribisi River in 1909. Having compared British Guiana birds with a typical specimen of A. turdinus turdinus (Pelz.) in the British Museum, I find that the Guiana bird differs in being less rufous and more dusky on the head and upper back, more ochreous on the breast and abdomen, paler on the throat, and in having the wing and tail measurements smaller. Breeding-season. Unknown. Nest. Unrecorded. Eoqgs. Undescribed. Range confined to British Guiana. Ituribisi River, Supenaam River, Bartica, Kamakabra River, Bonasika River, Mazaruni River, Arwye Creek (J/eConnell collection) ; Bartica ( Whitely). Habits. Unrecorded. 417. Automolus albigularis. WHITE-THROATED AUTOMOLUS. Philydor albigularis Salvin & Godman, Ibis, 1884, p. 450 (Mount Roraima) ; Salvin, Ibis, 1885, p. 420 (Roraima, 3500 to 6000 ft.). Automolus albigularis Sclater, Cat. B. Brit. Mus. xv. p. 93, 1890 ; (Roraima) ; Brabourne & Chubb, B.S. Amer. i. p. 241, no. 2448, 1912, Adult male. Entire back and wings rufous-brown ; inner webs of primary and secondary guills dark brown, with buff edgings on the basal portion ; upper tail-coverts and tail rufous-chestnut ; head dark chocolate-brown; ear-coverts somewhat similar; a whitish line over the eye extending along the sides of the crown ; the short feathers on the loral space bufty-white at the base and dark brown at the tips of the feathers; chin and throat buffy- white ; breast, abdomen, and sides of the body ochreous-brown, somewhat darker on the last; under tail-coverts rufous-brown ; under wing-coverts cinnamon-rufous; quills below pale brown with pale rufous on the inner edges of the feathers ; lower aspect of the tail rufous. AUTOMOLUS. 105 Total length 174 mm., exposed culmen 21, wing 87, tail 76, tarsus 24. Adult female. Similar to the adult male but slightly smaller. Wing 79 mm. The male described was collected by Mr. McConnell during his journey to Mount Roraima in October 1898. Breeding-season. Unknown. Nest. Unrecorded. Figgs. Undescribed. Range conjined to British Guiana. Mount Roraima (JeConnell collection) ; Mount Roraima ( WW hitely). Habits. Unrecorded. 418. Automolus cervicalis. OLIVE-CAPPED AUTOMOLUS. Automolus sclateri (nec Pelz.) Salvin, Ibis, 1885, p. 420 (Bartica Grove, Camacusa); Sclater, Cat. B. Brit. Mus. xv. p. 95, 1890 (Camacusa, Bartica Grove—specimens 7, #, 1, m). Philydor cervicalis Sclater, P. Z. S. 1889, p. 83 (Camacusa and Bartica Grove) ; id. Cat. B. Brit. Mus. xv. p. 101, 1890. Automolus cervicalis Brabourne & Chubb, B. 8S. Amer. i. p. 241 no. 2448, 1912. Adult male. Head, back, upper wipg-coverts, and outer aspect of primary and secondary quills olive-brown ; inner webs of the flight-quills dark brown with buff margins ; rump and upper tail- coverts dark rufous-chestnut ; the tail similar but somewhat paler ; fore part of the head rather paler than the hinder crown with pale slaft-streaks like the ear-coverts and feathers below the eye ; loral space and feathers in front of the eye whitish at the base, with black hair-like tips to the feathers ; chin and throat dull white with a yellowish tinge; breast, sides of the body, abdomen, and under tail-coverts dusky brown, paler and inclining to grey’on the middle of the abdomen ; under wing-coverts cinnumon-rufous, inner edges of the quills below similar but rather paler, remainder of the under surface of the quills pale brown ; lower aspect of the tail rufous. Total length 159 mm., exposed culmen 18, wing 85, tail 66, tarsus 20. The male described was collected on the Ituribisi River in 1909. 106 BIRDS OF BRITISH GUIANA. Adult female. Similar to the adult male but slightly smaller. Wing 80mm. An immature bird from the Supenaam River differs from the adult in having the fore-neck squamated. Breeding-season. Unknown in British Guiana. Nest. Unrecorded in British Guiana. Eggs. Undeseribed from British Guiana, Range in British Guiana, Ituribisi River, Supenaam River, Bartica, Kamakabra River, Bonasika River, Makauria River, Anarica River, Tiger Creek (McConnell collection) ; Bartica, Kamacusa ( Whitely). fetralimital Range. Surinam (Penard), Venezuela, North-west Brazil. Habits. Unrecorded in British Guiana. Genus PHILYDOR Spix. Philydor Spix, Av. Bras. i. p. 78, 1824. Type P. atricapillus (Wied). Fig. 45.—Philydor atricapillus. The species on which this genus was founded has a straight bill, the length of the exposed culmen being rather more than twice that of its depth. The wing is rounded, the third, fourth, and fifth primaries longest, the second shorter than the fifth but much longer than the sixth. Tail proportionately long and rounded at the tip; its texture is soft and its length about seven-tenths that of the wing. The tarsus is about one-third longer than that of the exposed culmen, and the middle toe and claw exceeds in length that of the hind toe and claw. Coloration: male and female similar. Key to the Species. A. Under surface tawny-ochraceous ......... P. pyrrhodes, p. 107. ; : ; e B. Under surface olive-yellow ............... PB. e. guianensis, p. 107, PHILYDOR. 107 419, Philydor pyrrhodes. CINNAMON-RUMPED PHILYDOR. Anabates pyrrhodes Cab. in Schomb. Reis. Guian. i. p. 689, 1848. Philydor pyrrhodes Salvin, Ibis, 1885, p. 420 (Bartica Grove) ; Sclater, Cat. B. Brit. Mus. xv. p. 99, 1890 (Bartica Grove); Brabourne & Chubb, B. 8. Amer. i. p. 245, no. 2464, 1912. Adult male. Crown of head, hind-neck, and back rust-brown ; wings darker and inclining to chocolate-brown; rump, upper tail-coverts, and tail pale cinnamon-rufous ; lores, a line over and behind the eye, sides of face, entire under surface, including the under wing-coverts and lower aspect of tail, pale cinnamon- rufous. Total length 154 mm., exposed culmen 17, wing 80, tail 57, tarsus 20. The male described was collected on the Ituribisi River in November 1906. Adult female. Similar to the adult male but slightly smaller. Wing 76 mm. Breeding-season. Unknown in British Guiana. Nest. Unrecorded in British Guiana. Eggs. Undescribed from British Guiana. Range in British Guiana. Ituribisi River, Supenaam River, Bartica, Abary River (M/cConnell collection) ; Bartica (Whitely). Extralinital Range. Surinam (Penard), Venezuela, Ecuador, Peru. Habits. Schomburgk (Reis. Guian. iii. p. 689) simply says that this bird lives near the coast. 420. Philydor erythrocercus guianensis. GuIaANA Dusky-VENTED PHILYDOR. Philydor erythrocercus (nec Pelz.) Salvin, Ibis, 1885, p. 420 (Camacusa) ; Sclater, Cat. B. Brit. Mus. xv. p. 101, 1890 (Camacusa) ; Brabourne & Chubb, B. 8. Amer. 1. p. 248, no. 2471, 1912. Philydor erythrocercus guianensis Chubb, Bull. Brit. Orn. Club, xxxix. p- 60, Feb. 28, 1919. Adult male. Crown of head, sides of face, back and wings dark olive; inner webs of the upper wing-coverts and flight-quills dark brown with cream-white margins to the last ; rump, upper tail- coverts, and tail, both above and below, rufous-chestnut ; lores 108 BIRDS OF BRITISH GUIANA. whitish at the base and dusky at the tips of the feathers ; superciliary line yellowish white ; chin and throat also yellowish white, becoming darker on the breast and middle of the abdomen and more olive on the sides of the body and under tail-coverts ; under wing-coverts orange-buff ; under surface of flight-quills pale brown with yellowish-white inner edges. Total length 162 mm., exposed culmen 16, wing 90, tail 65, tarsus 20. Adult female. Similar to the adult male and differs only in having the under tail-coverts pale rufous. Wing 79 mm. There is a specimen in the British Museum, sexed as female, from Ourumee, which differs from those described and others in the collection in having the superciliary streak and the feathers adjoining the hinder ear-coverts rufous. JI am inclined to think, however, that this must be a sign of immaturity, as some of the tail-feathers are not fully grown. This subspecies is not represented in the McConnell collection ; the birds described are in the British Museum, and were collected by the late Henry Whitely at Kamacusa and Ourumee. ‘There is also in the collection a male individual from Barro do Rio Negro, said by the late Dr. Sclater to be one of the typical specimens of P. e. erythrocercus. The Guiana bird differs, however, from this and another from Para, collected by the late A. R. Wallace, in being darker on the upper parts, with more brown and less olive; this applies also to the under surface, especially on the sides of the body. I have, therefore, separated these subspecifically. Breeding-season. Unknown in British Guiana. Nest. Unrecorded in British Guiana. Eggs. Undescribed from British Guiana. Range in British Guiana. Kamacusa, Ourumee ( Whitely). Lxtralimital Range. Cayenne. Habits. Unrecorded in British Guiana. Family XENOPIDA. This family consists of two genera and seven species. One of the genera and one of the species are represented in British Guiana. XENOPS. 109 Genus XENOPS Illig. Xenops Iliger, Prodr. p..213, 1811. Type X. genibarbis Mig. Fig. 46.—Xenops genibarbis. This genus is distinguished by its small size, narrow bill, and upturned lower mandible. The wing is rather pointed, the third and fourth primaries longest, the second equal to the fifth, and the first between the sixth and seventh. ‘The tail is proportion- ately long and graduated, the middle feathers slightly longest, the feathers are broad and soft in texture, and about four-fifths the length of the wing. The tarsus is about equal in length to that of the middle toe and claw. Coloration: male and fomale similar. 421. Xenops genibarbis. WHISKERED RECURVED-BILL. Aenops genibarbis Mig. Prodr. p. 213, 1811 (Cameta, Brazil) ; Salvin, Ibis, 1885, p. 420 (Bartica Grove, Camacusa, Roraima, 3500 ft.) ; Sclater, Cat. B. Brit. Mus. xv. p. 110, 1890 ( Bartica Grove, Cama- cusa); Brabourne & Chubb, B.S. Amer. i. p. 245, no. 2489, 1912. Adult male. Back and upper wing-coverts rust-brown ; head rather darker with pale shaft-streaks to the feathers; lesser 110 BIRDS OF BRITISH GUIANA. upper wing-coverts like the back, the median and greater series more or less blackish on the inner webs; primary-coverts and primary and secondary quills also blackish with a band of rufous across the middle portion of the quills, the secondaries margined with the same colour at the tips, as are also the outer edges of some of the primaries ; the innermost secondary entirely dull rufous ; middle pair of tail-feathers rufous, the next pair black, the fol- lowing pair also black with an oblique mark of rufous at the tip on the outer web, the two outer pairs rufous with more or less black on the basal portion ; a white line over and behind the eye and another one across the cheeks; ear-coverts brown with minute pale streaks ; throat dull white ; remainder of the under surface dusky brown including: the breast, abdomen, sides of the body, and under tail-coverts ; under wing-coverts and a band across the under surface of the quills orange-buff, remainder of the quill-lining pale brown; lower aspect of tail rufous and black. Total length 122 mm., exposed culmen 15, wing 62, tail 48, tarsus 16. The male described was collected on the Supenaam River in 191 Adult female. Similar to the adult male but a little smaller, Wing 56 mm. Breeding-season. Unrecorded in British Guiana. Nest. In the crevice of a tree about two feet from the ground, composed of rootlets and fibres (Beebe). Leggs. Pure white and three in number (Beebe). Range in British Guiana. Ituribisi River, Supenaam River, Bartica, Makauria River, Anarica River, Great Falls Demerara River, Berbice River (MeConnell collection); Mount Roraima, Kamakusa, Bartiea (W hitely). Extralimital Range. Northern Brazil, Venezuela, Colombia, Peru. Note. XENOPS HETERURUS, Xenops heterurus Cab. & Hein. Mus. Hein. ii. p. 83, 1859 (Colombia). This species is not represented in the McConnell collection, neither are there any specimens in the collection at the National Museum from British Guiana. GLYPHORHYNCHUS. 11h Family DENDROCOLAPTIDA. The present family consists of the spine-tailed and tree- climbing birds usually known as Wood-hewers, which have long bills of variable forms, long and stiffened tails, short legs, long toes, and very sharp claws. At the time when Brabourne & Chubb published their ‘List of the Birds of South America’ there were eighteen genera and about one hundred and seventeen species. Nine of the genera and about thirteen of the species were represented in British Guiana. Genus GLYPHORHYNCHUS Wied. . Glyphorhynchus Wied, Beitr. Naturg. Bras. ii. p. 1149, 1831. Type G. cuneatus (Licht.). Fig. 47.—Glyphorhynchus cuneatus. This genus is distinguished by the short bill, rather pointed 112 BIRDS OF BRITISH GUIANA. wings, somewhat long tail, slender feet, and sharply curved claws. The bill flattened at the tip of the upper mandible, and the outer edges turned inwards. The wing is rather pointed, the second, third, fourth, and fifth primaries longest and subequal, the first slightly shorter than the seventh. The tail is rounded and gradaated, the feathers curved towards the apical portion, and the shafts extended and bare at the tips. The feet are small, the two outer toes longest and about equal in length and the inner and hinder toes, measured from the same point, are nearly equal, and the claws are sharply curved with needle-like points. Coloration: male and female similar. 422. Glyphorhynchus cuneatus simillimus. WEDGE-BILLED WooD-HEWER. Glyphorhynchus cuneatus (nec Licht.) Salvin, Ibis, 1885, p. 421 (Bar- tica Grove, Camacusa, Roraima 3500 ft.); Sclater, Cat. B. Brit. Mus. xv. p. 154, 1890 (Roraima, Camacusa, Bartica Grove) ; Beebe, Our Search for a Wilderness, p. 392, 1910 (Aremu River); Brabourne & Chubb, B. 8. Amer. i. p. 248, no. 2561 (part), 1912. Glyphorhynchus cuneatus simillimus Hartert & Goodson, Nov. Zool. xxiv. p. 419, 1917. Wedge-billed Pigmy Woodhewer, Beebe, Our Search for a Wilderness, pp- 339, 392, 1910. Adult female. Crown of the head, upper back, scapulars, upper wing-coverts, and outer aspect of flight-quills dark ochreous brown ; primary-coverts and inner webs of flight-quills blackish with a patch of white on the basal portion of the latter, inner- most secondaries tinged with chestnut ; lower back, rump, upper tail-coverts, and tail rufous chestnut ; forehead somewhat darker than the crown, with pale shaft-lines to the feathers ; lores similar with black hair-like tips to the feathers; sides of faee ochreous brown, the feathers streaked or tipped with buffy-white; a narrow superciliary streak also buffy-white ; chin and tliroat ferruginovs more or less intermixed with brown; remainder of the under surface dull ochreous brown with broad buffy-white lanceolate markings to the feathers on the fore-neck, which fade off into narrow streaks on the breast and become almost obsolete on the abdo- men and sides of the body; under tail-coverts similar but inclining to chestnut-rufous at the tips ; axillaries and under wing-coverts white, outer edge of wing below ochreous brown ; under surface GLYPHORHYNCHUS. 113 of flight-quills dark brown with an oblique patch of buff ; lower aspect of tail rufous, the shafts paler than on the upper surface and inclining to white. Total length 135 mm., exposed culmen 11, wing 65, tail 63, tarsus 15. The female form from which the description is taken was collected on the Supenaam River in 1911. | Adult male. Similar to the adult female but slightly larger. Wing 76 mm. Breeding-season. Unrecorded in British Guiana. Nest. Two feet above the ground—a thin network of rootlets and fibres (Beebe). Eggs. The eggs were a broad oval in shape, dull white in colour, and measured 20 by 16 mm. (Beebe). Range in British Guiana. Ituribisi River, Supenaam River, Bartica, Kamakabra River, Abary River, Anarica River, Arwye Creek (M/cConnell collection) ; Mount Roraima, Kamakusa, Bar- tica (Whitely) ; Aremu River (Beebe). Extralimital Range. Surinam (Penard), Cayenne (Jelski), Venezuela, Colombia, Brazil. Habits. The following notes are quoted from Beebe (Our Search for a Wilderness, p. 339) :—‘“ I secured a Wedge-billed Pygmy Woodhewer with its single young one, which must have left the nest that very day. Curiously enough, the latter perched as often as it clung to the tree-trunks, and keeping this in mind I found that the measurements of the two birds were very inter- esting. There was almost no difference between the length of the wings and beaks of parent and young, but the tail of the young bird was only 14’, inches in length as compared with 4 inches in the adult. From this it appears that the climbing habit is not developed as early in the young Woodhewer as in Woodpeckers, in which it seems instinctive from the first. | “Resting my camera for a moment against the buttress of a giant mora, a small brown bird flew out and I recognised another Wedge-billed Pygmy Woodhewer. It flew to a sapling and peered at me around the side. When I did not move away it came nearer and voiced its disapproval by a five-syllabled ery, chik-chik-chik-chik-chik ! This made me suspicious, and peering down a narrow crevice formed by a deep fold in the buttress I caught a glint of white, and finally made out three eggs, one of VOL, I. I 114 BIRDS OF BRITISH GUIANA. which seemed to be freshly broken. A safer or cosier place could not be imagined. The crevice was eighteen inches deep and only two inches ee with the opening ap the fold almost closed by a small dangling bush rope. The nest itself was only two feet above the ground. The eggs were pure white and were laid on a thin network of rootlets and fibres resting on the black mould which had collected in the crevice. The following day it took me two hours of hard work, cutting and sawing, to reach the nest, and when Milady spooned up nest and eggs, four good sized scorpions came with them, unpleasant guests I should think! There were two eggs in the nest and a broken one on the ground outside which the parent had removed the night before. This egg had probably been broken by the hurried flight of the parent on the preceding day. The eggs were a a eal in shape, dull white, and both measured 20 by 16 mm. Genus DENDROCINCLA Gray. Dendrocinela Gray, List Gen. Birds, p. 18, 1840. Type D. turdina (Licht. ). The birds that constitute this genus are of medium size. The bill is fairly long and somewhat slender, the exposed culmen about equal in length to that of the tarsus. The wing is rounded, the third, fourth, and fifth primaries longest, the second slightly shorter than the sixth but longer than the seventh, and the first about half the length of the wing. The tail is long and somewhat stiffened, the shafts protruding beyond the webs of the feathers at the tips. The two outer toes and claws about equal in length and longer than the hind toe and claw. Coloration: male and female similar. Key to the Species. A. Larger, wing more than 100 mm., tail more than ‘80, culmen more than 25........ .. D. fuliginosa, p. 116. B. Eraiier wing less than 100 mm., tie ee than 80, culmen less than 25 iview's upthuaisigeneb’ | oe EIEE@A Dod LO. DENDROCINCLA. WAY CWS SS \\ \ \\ \ Fig. 48.—Dendrocincla turdina. bo 116 BIRDS OF BRITISH GUIANA. 423. Dendrocincla fuliginosa. VIEILLOT’s WooD-HEWER. Dendrocopus fuliginosus Vieill. N. Dict. d’ Hist. Nat. xxvi. p. 117, 1818 (Cayenne). Dendrocincla fumigata Salvin, Ibis, 1885, p. 421 (Bartica Grove, Camacusa, Roraima 3500 ft.). Dendrocincla fuliginosa Sclater, Cat. B. Brit. Mus. xv. p. 165, 1890 (Roraima, Camacusa, Bartica Grove); Brabourne & Chubb, B. 8. Amer. i. p. 248, no. 2520, 1912. Adult male. Head, back, upper wing-coverts, breast, abdomen, and sides of the body dusky olive-brown ; primary and secondary quills rufous, with dark shaft-lines and buff edges to the inner webs, the six outer primaries brown at the tips; upper and under tail-coverts rufous ; tail-feathers rufous with black shaft-lines ; a short line of buff behind the eye; the short feathers on the lores and in front of the eye whitish at the base with dark tips; sides of the face and ear-coverts dusky brown with pale shaft- lines; chin and throat pale grey, becoming brown with pale narrow shaft-lines on the fore-neck; under wing-coverts and greater part of the quill-lining cinnamon-rufous, tips of primary- quills below brown; lower aspect of tail pale rufous including the shafts of the feathers. Total length 226 mm., exposed culmen 29, wing 110, tail 95, tarsus 30. The male described was collected on the Demerara River. Adult female. Similar to the adult male but rather smaller. Wing 105 mm. Breeding-season. Unknown in British Guiana. Nest. Unrecorded in British Guiana. Eggs. Undeseribed from British Guiana. Range in British Guana, Supenaam River, Mazaruni River, Demerara River (McConnell collection); Mount Roraima, Kama- kusa, Bartica (Whitely). Extralimital Range. Surinam (Penard), Cayenne ( Vieillot). Habits. Unrecorded in British Guiana. 424. Dendrocincla merula. RED-VENTED WooD-HEWER. Dendvocolaptes merula Licht. Abh. Ak. Berl. 1820, p. 208 (Cayenne). Dendrocinecla merula Salvin, Ibis, 1885, p. +21 (Bartica Grove) ; DENDROCINCLA.—SITTASOMUS. EL Sclater, Cat. B. Brit. Mus. xv. p. 168, 1890 (Bartica Grove) ; Brabourne & Chubb, B. 8S. Amer. i. p. 249, no. 2527, 1912. Adult. Head, back, sides of face, sides of neck, breast, abdomen, and sides of the body dark sooty-brown ; throat white tinged with lemon-yellow ; upper and under tail-coverts dark chestnut; wings and tail chestnut-brown, apical portion of outer primary-quills dark brown on the inner webs, the remainder of the primary and the whole of the secondary quills rufous on the inner webs becoming paler on the edges ; under wing-coverts and axillaries pale chestnnt ; quills below pale rufous, becoming dark brown at the tips of the outer primaries ; under surface of tail the same as that of the upper side. Total length 162 mm., exposed culmen 20, wing 95, tail 61, tarsus 24. The bird described was collected on the Supenaam River in 1910. Breeding-season. Unknown in British Guiana. Vest. Unrecorded in British Guiana. Eggs. Undescribed from British Guiana. Rangein British Guiana. Supenaam River (McConnell collec- ton) ; Bartica ( Whitely). Euxtralimital Range. Surinam (Penard), Cayenne (Licht.), Venezuela, Peru, Brazil. Habits. Unrecorded in British Guiana. Genus SITTASOMUS Swains. Sittasomus Swains. Zool. Journ. iii. p. 855, 1827. Type S. sylviellus (Temm.). The species on which this genus was founded are small birds. The bill is slender and pointed at the tip, the exposed culmen is about equal in length to that of the inner toe and claw. The wing is rounded, the third, fourth, and fifth primaries longest, the second rather shorter than the fifth but much longer than the sixth, and the first about equal in length to the outer secondaries, The tail is rounded and graduated, and about the same length as that of the wing. Coloration: male and female similar, 118 BIRDS OF BRITISH GUIANA. i, Y) \ L, 4d fio 'y y iu \" | if \ | | Mt Wl ‘ a \\ / wr \ Fig. 49.—Sittasomus sylviellus. 425. Sittasomus amazonus. AMAZONIAN OLIVE CREEPER. Sittasomus amazonus Lafr. Rev. Zool. 1850, p. 590 (haut Amazone) ; Brabourne & Chubb, B. 8. Amer. i. p. 249, no. 2530, 1912. Stttasomus olivaceus Salvin, Ibis, 1885, p. 421 (Camacusa, Merumé Mts., Roraima, 3500 ft.); Sclater, Cat. B. Brit. Mus. xy. p. 119, 1890 (Roraima, Merumé Mts.). Adult male. Crown of head, nape, upper back, upper wing- coverts, sides of face, throat, breast, abdomen, and sides of body dusky olive-brown ; outer aspect of wings rufous, inner webs of flight-quills dark brown with cinnamon-rufous on the basal portion ; lower back, rump, upper and under wing-coverts, and SITTASOMUS.—DENDROCINCLOPA. 119 tail, above and below, bright rufous; axillaries and under wing- coverts drab-white ; under surface of quills dark brown with ycinnamon-rufous on the inner edges at the base. Total length 168 mm., exposed culmen 14, wing 85, tail 84, tarsus 17. Adult female. Similar to the adult male but rather smaller. Wing 78 mm. This species is not represented in the McConnell collection, and the male and female from which the descriptions are taken are in the British Museum and were collected at Mount Roraima by Henry Whitely—Salvin-Godman collection. Breeding-season. Unknown in British Guiana. Nest. Unrecorded in British Guiana. Eggs. Undescribed from British Guiana. Range in British Guiana. Mount Roraima (Whately). Extralimital Range. Venezuela, Colombia, Peru, ITabits. Unrecorded in British Guiana. Genus DENDROCINCLOPA, Chubb. Dendrocinclopa Chubb, Bull. Brit. Orn. Cl. xl. p. 107, March 1920. Type D. guianensis (Chubb). Fig. 50.—Dendrocinclopa quianensis. The species on which I propose to base this new genus was placed by Brabourne and Chubb (B. 8. Amer. i. p. 250) in the genus Deconychura Cherrie. I find, however, that it differs from the type of that genus in having twelve tail-feathers instead of ten. The biil is somewhat long and slender, the exposed culmen about equal in length to that of the tarsus. The wing is rounded, the third, fourth, and fifth primaries longest and subequal, the second is intermediate in length between the fifth and sixth. The tail is rounded and graduated, and exceeds the length of wing. Coloration: male and female similar, 120 BIRDS OF BRITISH GUIANA. 426. Dendrocinclopa longicauda guianensis. GUIANA LONG-TAILED CREEPER. Dendrocincla longicauda (nec Pelz.) Salvin, Ibis, 1885, p, 421 (Bartica Grove, Merumé Mts.); Sclater, Cat. B. Brit. Mus. xv. p. 165, 1890 (Merumé Mts., Bartica Grove). Deconychura longicauda Brabourne & Chubb, B. 8. Amer. i. p. 250, no. 2534 (part), 1912. Dendrocincla longicauda guianensis Chubb, Bull. Brit. Orn. Club, xxxix. p. 61, 1919. Adult. Crown of head and sides of face rufous-brown with pale shaft-lines to the feathers; mantle and back uniform rufous-brown ; flight-quills and tail chestnut-rufous with brown tips to the primary-quills on the inner webs; throat fulvous; fore-neck, breast, abdomen, and sides of body dusky brown, with pale ferruginous shaft-lines to the feathers on the fore-neck ; under tail-coverts inclining to rufous ; axillaries and under wing- coverts cinnamon-rufous ; under surface of quills dark brown with rufous inner edgings. Total lengch 197 mm., exposed culmen 20, wing 99, tail 104, tarsus 23. The type, which is in the British Museum, was collected at Bartica on the 20th of December, 1880, hy Henry Whitely— Salvin-Godman collection, Breeding-season. Unknown. Nest. Unrecorded. Hugs. Undescribed. Range confined to British Guiana. Merumé Mountains. Bartica (Whately). Habits. Unrecorded. Genus XIPHORHYNCHUS Swains. Xiphorhynchus Swainson, Phil. Mag. i. p. 440, 1827. Type X. flavi- gaster Swains. _ The species on which this genus was founded bas a somewhat long and compressed bill. The wing is- rounded, the third and fourth primaries longest and equal, the second about equal to the sixth, and the first about equal in length to the secondaries. The tail is rounded and graduated, the two middle feathers slightly longest. Tarsus about two-thirds the length of the exposed culmen. Coloration: male and female similar. XIPHORHYNCRUS. 121 Key to the Species. A. Larger, wing more than 110 mm. ............. X. sororius, p. 121. B. Smaller, wing less than 110 mm. a. Throat and middle of the feathers on the fore-neck and breast buffy white; bill SUGUECR, Tis .ensiohcusienaneen ate eatnece