OCR Text |
Show 572 MR. P. L. SCLATER ON NEW FORMICARIANS. [Nov. 26, genus in the neighbourhood of Thamnistes, which I propose to call Neoctantes*. Neoctantes niger. Neoctantes genus novum Thamnophilinarum. Habitus generalis Thamnophili, sed rostro compresso, subrecurvato differt. Nares patulce. Culmen rectum, subdescendens, ad apicem paulum in-curvum. Tomiarum linea parum ascendens. Gonys recurvus fortiter ascendens. Alee breves, remigibus quinto sexto et septimo inter se fere cequalibus et longissimis. Pedes sicut in speciebus minoribus generis Thamnophili. Typus et species unica N. niger. f . Ater unicolor: macula magna interscapulii celata alba : dorsi plumis taxis elongatis, ad basin nigricanti-cinereis: alis caudaque intus fuscescentibus, rectricum fasciis obsoletis vix apparentibus rostro plumbeo, mandibula inferiore partim albicante, pedibus nigris: long, tota 6*0, alee 2*9, cauda; 2*4, rostri a rictu 0*8, tarsi 0*9. $ . Mari similis, sed magis in schistaceum ver gens, pectore cinnamo-meo- rufo: plumis dorsi et pectoris ad basin griseo-albis; remigibus ultimis et rectricibus fasciis obscurioribus transversis, parum conspicuis, notatis. Hab. Marabitanas, Rio Negro (Natterer). 3Ius. Vindob. et P. L. S. M y collection contains a single imperfect skin of the male of this rare bird, received in exchange from the Vienna Museum. Natterer appears to be the only collector that has ever met with it. 3. CERCOMACRA NAPENSIS. Cercomacra cinerascens, Sclater, P. Z. S. 1858, p. 245, et Cat. A. B.p. 184 (err.). Cinerea unicolor, alis caudaque nigricantioribus, tectricibus alarum * -"cos (novus), et KTarrni {occisor). |