( 379 ) 
rufescent buff markings being reduced to minute dots and some obsolete wavy lines, 
Natterer’s female from Mattogrosso is rather large (wing 150; tail 105 mm.), but 
in coloration it does not differ from Venezuelan and Rio Negro examples. 
289. Podager nacunda (Vieill.). 
Caprimulgus nacunda Vieillot, Nowv. Dict. x. p. 240 (1817.—ex Azara : Paraguay), 
Podager nacunda Pelzeln, l.c. p. 15 (Borba), 
No. 887. $ ad, Calama, 18. iv. 1908. “Iris dark brown, feet grey, bill 
greyish black.” 
290. Lurocalis semitorquatus nattereri (Temm.). 
[Caprimulgus semitorquatus Gmelin, Syst. Nat. 1. ii. p. 1031 (1789.—ex D’Aubenton, Pl. enl. 734: 
Cayenne). } 
C. nattereri Temminck, : Pl. col. livr. 18. pl. 107 (1822.—* Brésil,” coll. Natterer—we fix Ypanema, 
S. Paulo, as type locality), 
No. 81. ? ad., Calama, 20. vi. 1907. “Iris black, feet yellowish grey, bill 
black.” 
This form is much larger than L. s. semitorguitus, from North-Eastern South 
America, but does not differ in coloration. It ranges from Para and Manisos 
southward to §. Paulo and Parand (Curitiba), while typical ZL. s. semitorquatus 
dwells in the Guianas, in the island of Trinidad, and on the upper Rio Negro 
(Rio Icanna). 
The subjoined table of measurements shows the differences in size :— 
(a) L. 8. semitorquatus (Gm.). 
Wing. Tail. 
One adult, Cayenne... ee ee re ee ee YY 2 mm. 
One ‘do. ad., Chagnanas, Trididad? 2 s:¢: sesiewriels eos. 174: 84g, 
Two 2? ad., Chaguanas, Trinidad . : 1 ; é fee Ge 1183 5 
One ? ad., Rio Icanna, Natterer coll. Vienna Mus. . : ie Yi Sa. y 
(4) L. s. natterert (Temm.). 
Wing. Tail. 
One adult male from 8. Panlo(Ypanema) .  . «. 202 95 mm. 
Five adult females from 8. Paulo . j A ‘ . 195—215 88—100 mm. 
Three adults from Rio de Janeiro . : : : . 198—215 89—95 ,, 
One adult from Bahia . : ; : ; : seo 84 a 
One female from Calama, Rio Madeira . : ‘ eos 93 . 
One adult male from Para 193 87 ” 
One female from Pari... 183 82 ” 
One adult female from Manos 202 91 ” 
N.B.—The Manios specimen is fully as large as others from S. Paulo, while the 
birds from Bahia, Calama, and Para average rather smaller. 
(291. Hydropsalis torquata (Gm.). 
Cf. Hellmayr, Nor, Zool. xiv. p. 396 (Humay tha), 
Left bank : Humaytha (Hoffmanns). are 
Natterer obtaine1 this South Brazilian species, according to Voa Pelzeln, 
* Orn. Bras. i. p. 11. 
