322 TROCHILIDA. 
Supra nitenti-viridis, capite summo micanti saturate cyaneo: subtus griseus medialiter pallidior, tectricibus 
auricularibus, cervicis lateribus, hypochondriis et tectricibus subcaudalibus obscurioribus ; cauda purpureo- 
nigra, rectricibus mediis omnino reliquis ad basin nitenti-ceruleo-viridibus, rectricibus externis utrinque 
in pogonio externo medialiter pallidis: rostro nigro. Long. tota 5°5, ale 2°7, caude rectr. med. 2°15, 
rectr. lat. 1:7, rostri a rictu 1-2. 
© mari similis; caude rectricibus utrinque externis in pogonio externo ad apicem et apicibus omnino griseis, 
abdomine concoloribus. (Descr. maris et femine ex Choctum, Guatemala. Mus. nostr.) 
Hab. Mexico, Izalam and Tizimin in Northern Yucatan (G. F. Gawmer®); GuatemaLa 
(Skinner *), Coban 4, Choctum’, Chisec? (0. S. & #. D. G.). 
Lesson’s description and figure of this species were based upon a male specimen 
supposed to have come from Paraguay, and until a difference was recognized between 
the Mexican and Guatemalan birds the name was applied in common to both. Gould, 
however, in his ‘Introduction to the Trochilide,’ pointed out the slight distinction 
separating the two birds, and applied Lesson’s title to the Guatemalan form, using 
Lichtenstein’s name S. curvipennis for the Mexican. In this course he has been 
followed by subsequent writers; but it is rather doubtful if he was right in so doing ; 
for if the colour of the central tail-feathers goes for anything, Lesson’s figure repre- 
sents the Mexican rather than the Guatemalan bird. ‘The point is of slight 
importance, and we adhere to the assignment of these names as adopted by Gould. 
S. pampa is limited in its range to the great forests of Northern Vera Paz, where it 
is not uncommon at an elevation of about 1500 feet above sea-level. On one occasion 
a specimen was obtained near Coban in November 18594, but it was an exceptional 
circumstance to find it at so high an elevation as 4300 feet. 
2, Sphenoproctus curvipennis. 
Trochilus curvipennis, Licht. Preis-Verz. Mex. Vog. p. 1 (ef. J. f. Orn. 1863, p. 56) *. 
Sphenoproctus curvipennis, Gould, Intr. Troch. p. 51%; Ferrari-Perez, Pr. U.S. Nat. Mus. ix. p. 156°; 
Salv. Cat. Birds Brit. Mus. xvi. p. 287°. 
Campylopterus pampa, Scl. P. Z. 8. 1856, p. 287°; 1859, pp. 367°, 885"; de Oca, Pr. Ac. Phil. 
1860, p. 552°; La Nat. iii. p. 830°; Sanchez, An. Mus. Nac. Mex. i. p. 96”. 
S. pampe similis, sed rostro paulo longiore, capite summo pallidiore ceruleo et cauda paulo viridescentiore 
distinguenda. (Descr. maris et femine ex Jalapa, Mexico. Mus. nostr.) 
Hab. Mexico (Deppe'), Misantla, Colipa (F. D. G.*), Cuesta de Misantla (MZ. Trujillo *), 
Coatepec (de Oca®, M. Trujillo*), Jalapa (de Oca®, F. Ferrari-Perez®, F. D. GA, 
C. F. Hige*, M. Trujillo *), Mirador (Sartorius, in U. S. Nat. Mus.), Atoyac (Mrs. 
H. H. Smith*), Orizaba (Sanchez 1°), Cordova (Sallé®), Teotalcingo (Boucard"). 
The first specimens of this bird to receive a name were sent from Mexico by Deppe 
and briefly described by Lichtenstein in his Price-list of the Duplicates of that 
collector’s spoils. The species is now known to be common on the slopes of the 
mountains of Vera Cruz from Jalapa to Teotalcingo. De Oca says that it is found in 
the dense bush near Coatepec in winter, and also occurs in similar places near Cordova 
