53 [Vol. xyi. 



tail dark olive-brown, with narrow pale olive-brown outer 

 margins. Sides of the head and neck greyish-olive, under 

 surface pale olive-grey, juguluni with faint indications of 

 stripes, upper throat and middle of the abdomen whitish, 

 under tail-coverts also very light. Under wing-coverts and 

 inner lining of wings dull whitish-buff. " Feet greenish- 

 slate. Upper mandible dark-brown, with the edges and 

 extreme tip horn-grey ; lower mandible grey-brown, with 

 a yellowish tinge near the base." Wing 82-5, tail 81-5, 

 tarsus 31, culmen 21 mm. 



Dr. W. J. Ansorge obtained a single male at Durque 

 de Braganza, in Northern Angola, on August 2nd, 1903.^ 

 (Type, No. 850 ; in Tring Museum). 



" This new form resembles in the colour of the upper 

 surface Calamocichla cunenensis, Hartert (cf. Bull. B.O.C., 

 XIII. no. xcvii, p. 62, 1903), but is darker ; the latter 

 species is also considerably smaller, and has a white 

 underside and whitish superciliary lines." 



Mr. C. E. Hellmayr described a new sub-species 

 belonging to the family of Formicariidoe as follows : — 



Thamnomanes c^sius hoffmannsi, subsp. n. 



$ ad. Like T. c. csesius from Bahia, being without a 

 white interscapular patch, but of a much clearer slaty-grey 

 colour everywhere. It differs also in having the throat 

 distinctly freckled with white, and in having the axillaries 

 and under wing-coverts pure white instead of pale greyish ; 

 the cheeks and ear-coverts have faint white shaft-lines not 

 to be seen in the typical form. ? ad. Exactly like that 

 of T. c. ccBsius. 



Type in Tring Museum : cJ ad. Prata, Para, Brazil, 

 November 15th, 1905. Collected by Mr. W. Hoffmanns. 

 Wing 70-5, tail 63, bill 13 mm. 



The same collection contained examples of a number of 

 very interesting species, some of which were new to the 

 famia of Para, while others were recorded for the first 

 time for Brazil. Such were Myrmoiherulci surinamensis 



