258 TROCHILID. 
plant of an Opuntia in such a manner that a section of the plant shaded it from sun 
and rain. 
2. Iache magica. 
Hylocharis magica, Muls. & Verr. Class. Troch. p. 38‘; Ann. Soc. Linn. Lyon, xvii. p. 110’. 
Circe magica, Muls. Hist. Nat. Ois.-Mouches, i. p. 40, t. 33°. 
lache magica, Elliot, Syn. Troch. p. 235*; Salv. Cat. Birds Brit. Mus. xvi. p. 61’. 
I. latirostri persimilis, sed minor, alis, rostro et cauda brevioribus, vix distinguenda. 
Hab. Mexico1?%, Mazatlan (forrer ®). 
Mr. Elliot separated this bird from J. latirostris chiefly on account of the throat 
being, as he says, ‘‘ metallic bluish green ” instead of “ sapphire-blue ” 
size. One of our specimens from Mazatlan seems to belong to this form, but we much 
doubt if it is really distinct from J. latirostris. The latter bird shows so much varia- 
tion in the amount of blue on the throat in specimens shot at the same time of year 
and at the same place, Bolajios, that, so far as the colour of the throat is concerned, 
I. magica may well be a greenish-throated J. latirostris, both being found at Mazatlan. 
The difference of size is not great :— 
and its smaller 
I. latirostris: wing 2°1 in.; tail 0°93. 
I. magica: » i9in.; ,, 0°87. 
But this difference seems the sole tangible ground for the separation of I. magica. 
This name was first introduced by MM. Mulsant and Verreaux in their Classification 
of 'T'rochilide, but without description!. The type passed into Mr. Elliot’s hands and 
was characterized in his ‘ Synopsis’ ¢. 
3. Iache lawrencii. 
Circe latirostris, Grayson, Pr. Bost. Soc. N. H. xiv. p. 282"; Lawr. Mem. Bost. Soc. N. H. ii. 
op. 292”, 
ache lawrencii, Berl. Ibis, 1887, p. 292°; Salv. Cat. Birds Brit. Mus. xvi. p. 61+. 
I, latirostrt quoque similis, sed gutture omnino micanti-viridi vix ceruleo tincto; tectricibus subcaudalibus 
obscure griseis disco late chalybeo-nigris nec albis quoque distinguenda. 
Hab. Muxico, Tres Marias Islands (Grayson! 2, Forrer 3 +). 
This bird was separated from J. latirostris by Count Berlepsch in 1887 %, his 
description being based upon specimens obtained in the Tres Marias Islands by 
Mr. Alphonse Forrer. We have a pair from the same source which fully confirm the 
points of distinction indicated by its describer, and which are referred to in the above 
diagnosis. ‘The only question as regards this bird which demands special attention is 
its range, for it is said to occur with the common species, J. latirostris, on the mainland 
near Mazatlan, and that J. latirostris also occurs on the Tres Marias Islands. If this 
is, so the presence in the same localities of two so nearly related forms is remarkable, 
