( 368 ) 



Sittasomus stictolaemus Pelz.,* I find that it has nothing whatever to do with 

 Sittasomus, 1 icing in every structural detail a typical meruher of the genus 

 Deconyehura. 



Thus we have four species, the characters and range of which are as follows : 



a. D. typica Cherrie. 



Hab. Costa Rica and Chiriqui. 



Rump brown like the back, upper tail-coverts only chestnut rufous. Pale 

 spots on foreneck rather large and conspicuously edged with blackish ; breast 

 with numerous buff shaft-stripes or spots. Baud of the wing distinctly washed 

 with cinnamon rufous. 



63 (Chiriqui; Pozo Azul, Costa Rica): wing 98, 101 ; tail 100, 107; 

 bill 24, 25* mm. 



? (Pozo Azul) : wing 90 ; tail 94 ; bill 24 mm. 



b. J>. longicauda (Pelz.). 



Hab. British Guiana : Bartica Grove, Mernme Mountains ; North Brazil : 

 Marabitanas, Rio Negro ; Barra do Rio Negro ; Borba ; Ega. 



Similar in coloration to IK typica, but with much larger and heavier bill, 

 longer wings and tail ; the pale spots on the foreneck less boldly marked, and 

 breast and abdomen uniform, without spots. 



<$S : wing 107—111 ; tail 105—113 ; bill 27—29 mm. 



? : wing 102; tail 106 ; bill 25 mm. 



c. D. secunda Hellm. 



Hab. Coca, Rio Napo, East Ecuador. 



Differs from the two foregoing forms by having the rump chestnut rufous, 

 like the upper tail-coverts, and the bend of the wing olive-brown. The pale shaft- 

 lines on the crown are narrower ; the nnder-parts marked as in 1>. longicauda. 



Type ( ? ) : wing 84* ; tail 90 ; bill 20 mm. 



d. I), stictolaemits (Pelz.). 



Hab. Borba, Rio Madeira. 



Like D. secunda, with the rump chestnut rufous and the bend of the wing 

 olive-brown, but very much smaller, also differing in several details of coloration. 

 The back is rather more rufescent brown, the nnder-snrface earthy brown (without 

 any olive hue), the buff spotting on the foreneck somewhat less distinct, etc. 



Type ( ? ad.) : wing 75 ; tail 72 ; bill 10 mm. 



71. Dendrocincla fuliginosa (Vieill.). 



Dendrocoptts fuliginosut Vieillot, Knur. Dirt. xxvi. p. 117 (1818. — ex Levaillant : Cayenne); cf. 



Me'ne'gaux and Ilellmayr, Mem. S,„\ tl'l/ixt. Nat. Antun xix. 190G. p. 119. 

 Dendrocincla fumigata Pelzeln, Zur Ornith. Bras. i. 1807. p. 42 (Borba). 



No. 1085. juv., Hnmaytha, 14. viii. 06. "Iris grey, feet greyish brown, 

 bill black." 



Though quite young, this bird undoubtedly belongs to the species in qnestion, 

 which '<ad already been collected by Natterer near Burba, on the lower Madeira. 



* Zur Ornith. Brazil, i. 1867. P- 6U (Borba), 



