152 Letters, Announcements, &c. 
Notes on Points in the Anatomy of Levaillant’s Darter 
(Plotus levaillanti). P.Z.S8. 1868, p. 679. 
Note on the Anatomy of Indicator major. P.Z.S8. 1878, 
p. 980. 
1879. 
Note on Points in the Anatomy of the Hoatzin (Opistho- 
comus cristatus). P.Z.S. 1879, p. 109. 
On the Conformation of the Thoracic Extremity of the 
Trachea in the Class Aves.—Part I. The Galline. P. Z. 8. 
1879, p. 354. 
Rediscovery of Loddigesia mirabilis.—We have great plea- 
aure In announcing that Hr. Stoltzmann, the collector of the 
Warsaw Museum in Peru, has obtained specimens of the 
remarkable Humming-bird Loddigesia mirabilis, of which 
the original specimen has hitherto remained unique. The 
Loddigesia was discovered by the botanical collector Matthews 
at Chachapoyas, in Peru, in 1836, and described by M. 
Bourcier before the Zoological Society in 1847. None of 
the many subsequent collectors who have visited Peru have 
obtained specimens. Hr. Stoltzmann, having had his atten- 
tion directed to the rarity of this bird by Graf v. Berlepsch, 
determined to proceed to Chachapoyas in order to obtain this 
desideratum, and arrived there in September last. Writing 
on the 28th of that month, he tells us that on the very first 
excursion which he made in the environs of Chachapoyas, five 
days after his arrival, he saw a young male of the much-de- 
sired Loddigesia, without, however being able to procure it. 
Two days later he proceeded to the same spot, and, after wait- 
ing in anxious expectation about two hours, succeeded in 
killing a young male with the plumage about half developed. 
In his next excursion he procured a second young male, and 
on the 19th of September an adult male, with the two singular 
spatuliform rectrices fully developed. Hr. Stoltzmann met 
with this Humming-bird within a distance of three kilo- 
metres from the city of Chachapoyas. He has ascertained 
that the original example, belonging to the late Mr. Loddiges, 
was shot at Quipachacha, about three leagues from Chacha- 
poyas. 
