158 MESSRS. SCLATER AND SALVIN ON [ Mar. 1], 
resemble the female of M. armata, as figured by Des Murs (Icon. 
Orn. pl. 48). 
« Bill, legs, and toes Indian red.” 
45. Larus serRaAnvs, Tsch. F. P. Aves, p. 307. 
L. personatus, Schlegel, Mus. des P.-B. Lari, p. 35. 
Several skins from Tinta, obtained in July, in winter dress or im- 
mature plumage, with the head almost white. One of them, appa- 
rently most immature, shows traces of a black subterminal tail-band. 
46. Popicers catiparevs, Lesson; Tsch. F. P. Aves, p. 315. 
Lagoon of Tungasuca. 
‘« Bill lead-colour ; eye red; legs and toes lead-colour.” 
47, PopIcErs ROLLANDI, Q. et G. 
Lagoon of Tungasuca. 
“ Bill black ; eye red; legs and toes slate-colour.” 
3. Second List of Birds collected at Conchitas, Argentine 
Republic, by Mr. William H. Hudson; together with 
some Notes upon another Collection from the same 
locality. By P. L. Scratzr, M.A., Ph.D., F.R.S., and 
Ossert Satvin, M.A., F.Z.S. 
A second collection of birdskins made by Mr. Hudson having 
been transmitted to us for inspection by the authorities of the 
Smithsonian Institution, Washington, we beg leave to offer to the 
Society a list of the species therein contained which were not enu- 
merated in our former paper on this subject *, with occasional remarks 
upon them. 
The collection consists of 105 specimens, referable to fifty different 
species. The following fourteen were not in the first collection. 
Two only of these, namely Cyanotis azare and Elanus leucurus, are 
not mentioned in Burmeister’s work on the zoology of La Plata. 
1. TROGLODYTES FURVUS (Gm.) 
Tr. platensis, Burm. La Plata-Reise, ii. p. 476. 
Basacaraguay, Azara, Apunt. ii. p. 19. 
Several examples of this widely diffused species. It has been 
already pointed out (P. Z. S. 1867, p. 321) that the true Sylvia 
platensis of Latham (founded on Buffon’s Pl. Enl. 730. f. 2) is 
Burmeister’s Cistothorus fasciolatus, which should be called Cisto- 
thorus platensis. Azara’s Todo voz, Apunt. il. p. 29. no. 151 
(Thryothorus polyglottus, Vieill.), is, no doubt, the same species. 
Mr. Hudson gives Ratoncito as the vernacular name of the pre- 
sent bird. 
* See P. Z. S. 1868, p. 137. 
