( 17 ) 



Agrees with typical specimens from Para and Venezuela, the three outer tail- 

 feathers being banded with white on the inner webs. 



In T. m. borbae Pelz. only the two outer rectrices have a white apical margin 

 aud two very small white sjiots to the edge of the inner web. 



40. Thainnomanes caesius glaucus Cab. 



Thanmonianes glaucus Cabanis, Arch. Naturg. 13. i. ( 1847) p. 230 (Cayenne). 



No. 435. ? ad., Itaituba, 12. i. 06. " Iris brown, feet black, bill above black, 

 below grey." 



Identical with a large series from Surinam, British Guiana, Orinoco, etc., the 

 whole breast aud abdomen being bright ferruginous, and the back warm olive- 

 brown with a large white interscapular patch. In Nov. Zool. xiii. p. 308 the 

 distribution of the three forms of Tkamnomanes is given. The specimen sent 

 by Mr. Hoffmanns extends the range of T. c. glaucus on the Lower Amazons 

 considerably to the east. 



T. c. kqffmannsi appears to be confined to the Para district. 



41. Myrmelastes luctuosus (Lcht.) 



Lanius luctuosus Lichteustein, Fere. Dull. 1823. p. 47 (Pani). 



ThamnophUus luctuosus Pelzeln, Zur Orn. Bra*, ii. (1868) pp. 70, 141 (Tapajoz) ; Chapman & 

 Riker, Auk 1891. p. 28 (Santarem). 



No. 426. ? ad., Itaituba, 11. i. 06. " Iris brown." 



No. 568. ? ad., Urucurituba, 11. ii. 00. "Iris browu." 



Both specimens have the crest dark rufous, as described by Pelzelu aud 

 Chapman. The description of T. luctuosus apud Tschudi (Faun. Peruan. Aoes, 

 p. 172), cpuoted by Chapman, is referable to T, melanochrous Scl. & Salv. 



J/, luctuosus is strictly confined to Lower Amazonia from Para to Borba, Rio 

 Madeira. About the systematic position of the species cfr. Menegaux & Hellmayr, 

 Bull. Philomat. Paris, 1900. p. 34. 



42. Formicivora grisea grisea (Bodd.) 



Cfr. Nov. Zool, xiii. p. 369. 



Formicivora grisea Chapman & ltiker, Auk 1891, p. 29 (Santarem). 



No. oil. ? ad., Itaituba, 29. i. 00. "Iris brown." Identical with bpccimeiis 

 from British Guiana aud Pani. 



4:;. 'Formicivora bicolor Pelz. 



Formicivora bicolor Pelzeln, Zur Oruith. Brasil. ii (1808), p. 150 (Engenho do Gama, Mattogrosso ; 

 Ribeirao, Salto Girao and Borba, Rio Madeira). 



No. 438. £ ad., Itaituba, 12. i. 00. "Iris brown."— Wing 53; tail 50 ; bill 

 14}- mm. 



No. 445. rj ad., Itaituba, 15. i. 06. "Iris brown, feet and bill black." 

 Wing 54} ; tail 50^ : bill 15 mm. 



No. 444. ? ad., Itaituba, 15. i. 06. "Iris brown, feet blue-black, bill black." 

 Wing 52 ; tail 51 ; bill 131 mm. 



No. 458. ¥ ad., Itaituba, 17. i. 06. " Iris brown, bill and feet black."— AYiug 

 53 ; tail 47 ; bill 14 mm. 



