37 i 



AEACHNOEAPHIS CEASSIEOSTEIS. 



(LESSER STOUT-BILLED SPIDER-HUNTER.) 



Arachnocestra crassirostris, Reichb. Handb. Scansorise, p. 314, no. 747, pi. 592, fig. 4016 (1854). 

 Arachnothera ternmincM, Horsf. & Moore, Cat. B. E.I. Co. Mus. ii, p. 728, no. 1060 (1856) ; 



Gray, Hand-1. B. i, p. Ill, no. 1367 (1869) ; Tweeddale, Ibis, 1877, p. 301. 

 Arachnothera crassirostris, Gray, Hand-1. B. i, p. Ill, no. 1368 (1869); Salvad. Ann. Mus. 



Civic. Genova, v, p. 187 (1874). 



c? ad. supra sordide olivascens, capitis plumis medialiter saturate brunneis : tectricibus alarum minimis et 

 medianis dorso concoloribus : majoribus et remigibus nigricanti-brunneis, hete olivascenti-flavo margi- 

 natis : supracaudalibus lsetius flavicantibus : rectricibus nigricanti-brunneis, anguste flavo marginatis, 

 externis versus apiceni pogonii interni pallide cinerascentibus vix flavicanti-albidis : plaga anteoculari 

 fusca : supercilio indistincto et plumis infraocularibus lsetius flavis : facie laterali fusca, vix olivaceo 

 lavata : gutture et praepectore cinerascenti-brunneis, flavo lavatis, gula lsstius flava : corpore reliquo 

 subtiis laete flavo, hypochondriis vix olivaceo lavatis : fasciis pectoralibus ltete aurantiacis : subalaribus 

 et axillaribus albidis paullo fiavido lavatis : remigibus infrk saturate brunneis, intiis albido marginatis : 

 maxilla nigra, mandibula saturate brunnea, basaliter albicanti-cinerea, : pedibus saturate plumbeis, 

 plantis aurantiacis : iride saturate brunnea. 



5 mari similis sed fasciis pectoralibus aurantiacis nullis. 



Hab. in peninsula Malayana et in insulis " Sumatra " et " Borneo " dictis. 



Adult Male. Upper parts olive, with dark brown centres to the feathers of the crown ; sides of the head 

 olive, with a broad dark-brown band from the nostril through the eye, partially margined above and 

 beneath with yellow; upper tail-coverts dark brown broadly edged with olive-yellow; wings and tail 

 dark brown, the feathers edged with olive-yellow, of a brighter and yellower shade on the quills and 

 greater series of wing-coverts ; the tail-feathers have pale ends, broadest on the outer ones, and fading 

 into pale yellow spots on the inner webs of some of them ; underparts yellow shaded with ashy olive 

 on the throat and front of the breast, and brightest and yellowest towards the under tail-coverts ; on 

 each side of the chest a tuft of bright orange-yellow feathers ; under surface of the wings dark brown, 

 with the coverts sulphur-yellow and the inner margins of the quills white ; bill, upper mandible black, 

 lower one dark brown with a whitish-blue shade at the base ; legs, feet, and claws dark plumbeous, 

 soles of the feet orange-yellow; irides dark brown. Total length 6'5 inches, culmen l - 35, wing 3, 

 tail 19, tarsus 0*7. 



Adult Female. Similar in plumage to the adult male, but without the bright yellow pectoral tufts. 



Immature. Similar in plumage to the adult female, excepting that the underparts are slightly paler; the 

 lower throat and front of the chest inclining to whitish ash. Total length about 5"5 inches, culmen 11, 

 wing 26, tail 1*3 (the end much worn), tarsus 0'6. 



Hab. Malay peninsula, Sumatra, and Borneo. 



This form of Spider-hunter is the smallest species of the genus Arachnoraphis ; the bill is smaller 



2s 



