( 350 ) 



219. Myrmotherula longipennis Pelz. (snbsp. ?). 



3/yrmolherula longijieiniis Pelzein, Zvr Orn. Bias. ii. p. 153 (1868. — Marabitanas, Rio Negro) ; 

 Hellmayr, Xni; Zuul xiv. p. 38.3 (Borba). 



No. 1011. cJ ad., Marnins, Rio Machados, 13. vii. 190S. "Iris black, feet 

 idnmbeons, bill black." — Wing 50 ; tail 29 ; bill 13 mm. 



No. 936. ? ad., Marnins, 21. vi. ]9as. " Iris dark brown, feet plnmbeons, bill 

 black, below greyish." — Wing 57; tail 33; bill 13 mm. 



The adnlt male agrees in coloration with onr series from Cayenne, Venezuela 

 (Caura), etc., bnt has mnch shorter wings and tail than any other specimen I have 

 seen. Thongh the cinereons colour of the belly is rather ]ialer than in the majority 

 of Cayenne and Venezuelan skins, one from the Caura Valley matches it exactly. 

 There is no trace of the white qnill-liiiing more or less conspicnous in all other 

 examples examined. 



The female also differs from six others (Cayenne, Caura) by its slightly 

 shorter tail, much less distinct dingy whitish quill-lining, and olive-brown (instead 

 of bright russet or cinnamon-brown) edges to the remiges. 



An adnlt male from Borba, obtained by Mr. Hoffmanns on his first expedition 

 in 1906, however, is fnlly as large as those from more northern localities (wing 63 ; 

 tail 36 mm.). 



A much larger series than at present available is required to make out the 

 geographical races of ^f. lonqipennis. 



[220. Myrmotherula garbei Ihering (f). 



Cf. Hellmnyr, Nov. Zuol. xiv. p. 383. 



Left bank of the Rio Madeira : Humaytha (Hoft'manns). 



The same form has been recorded from Villa Braga, left bank of the Tapaj6z, 

 by Miss Suethlage.* I am still in doubt as to its proper specific appellation.] 



221. Myrmotherula menetriesii berlepschi Hellm. 



Nos. 72, 922. cJcJ ad., Calama, 18. vi. 19U7, 0. viii. 19U8.— Wing 52, 53; tail 

 28,29; bill 13i mm. 



No. 208. ? ad., Calama, 12. vii. 1907.— Wing 54 ; tail 29 ; bill 13 mm. 



No. 1041. ? ad., Marnins, Rio Machados, 21. vii. 1908.— Wing 53 ; tail 26 ; 

 bill 14 mm. 



" Iris greyish brown or brown, feet plumbeous, bill black." 



The males agree perfectly with the type of M. herlepschi, most obligingly lent 

 by Dr. Lorenz, of Vienna. The four specimens differ from Af. m. menetriesii t 

 merely by the clearer grey of the plumage, the under parts being decidedly lighter, 

 less bluish, the cheeks and malar region more whitish grey, and the back likewise 

 paler. The difference in the markings of the rectrices alluded to in the original 

 description of M. berlepschi does not hold good. The females of the two forms are, 

 however, much more different. That of M. m. berlepschi may readily be distinguished 

 by having the upper wing-coverts mainly bright cinnamon-brown (instead of dull 

 "rev with indistinct bnfly olive edges), the outer web of the remiges cinnamon 



• Journ.f. Ortt. 1908. p. 511. 



t I had the two original specimens o£ M. boUviana Beil. from San Mateo, N. Bolifia, and a series 

 from Teff§ (cf. Aov. Zool. xiv. p. 69) for comparison. 



