BANGS AND PEXARD: NOTES ON AMERICAN BIRDS. 367 



Stibspecific characters. — Under parts dark, more olive — not far from 

 Saccardo's mnber of Ridgway; upper back similar to under parts, but slightly 

 more rufous; lower back, wings, and tail rufous-chestnut; the pale spots of 

 the under parts small and less distinct on the belly. 



Measurements. — Adult (twelve specimens) — wing, 93.0-99.5 

 (96.7); tail, 70.0-79.5 (74.9); tarsus, 19.5-21.5 (20.7); culraen from 

 base of forehead, 27.0-30.5 (29.0). 



Range.- — Guiana, eastern Venezuela (Orinoco Valley), northern 

 Brazil (Rio Negro, Rio Branco). 



Specimens examined. — Dutch Guiana: Vicinity of Paramaribo, 

 13; "Surinam" (Cragin), 1. British Guiana: Aunai (Whitely), 1. 

 Total, 15. 



Remarks. — Unfortunately we have not seen specimens from the 

 tjTJe-locality, Cayenne, but we assume that Surinam birds are suffi- 

 ciently close for purposes of comparison. Menegaux and Hellmayr 

 (Mem. Soc. hist. nat. Autun, 1906, 19, p. 109) give measurements of a 

 male and female from Cayenne which are slightly larger than the birds 

 from Surinam listed by them and those examined by us. The differ- 

 ence, how^eA'er, is very slight and probably would not prove to be 

 constant in larger series. 



A male (Penard collection) from Aunai, British Guiana, collected 

 by Henry ^Vhitely, 14 March, 1890 (or 1S91), is very rufous, and re- 

 sembles specimens from Bahia, but in this case we tliink the rufous 

 tone is due to fading and not to individual or seasonal variation. 

 Specimens taken near Paramaribo in ]\Iarch do not differ in shade 

 from others taken in January, February, April, May, June, or Decem- 

 ber, all having the dark olive tone. On the other hand, a very old 

 specimen (M. C. Z. 84,580) collected by Cragin in Surinam, has not 

 faded appreciably and agrees very well with more recently collected 

 specimens from the same locality. 



2. Dendroplex picus altirostris (Leotaud). 

 Dendrocola-ptes altirostris Leotaud, Ois. Trin., 1866, p. 166 (Trinidad). 



Type.— M. C. Z. 77,156, Lafr. coll. 2,279. Adult 9 . 



SuBSPECiFic CH.uiACTERs. — Similar to Dendroplex picuj^ jncu^ Gmelin. but 

 slightly larger; spots on under parts larger and more distinct, especially on the 

 belly; bill very much larger, thicker, and heavier; cuhnen more curved. 



Measurements. — Type. Adult 9 — wing. 108.0; tail, 85.5; 

 tarsus, 21.5; culmen from base of forehead, 32.5. 



