426 Zoological Society : — 



produced and sharp-edged ; the extreme tip is roundish, tapering, with 

 a white end. They are considerably larger than the horns of the 

 usual species. 



In the Cabrit or Antilocapra Americana, the horns are thick, 

 rounded on each edge and produced into a compressed submedial 

 frontal process, which is gradually bent towards the inner side. The 

 tips of the horns are rounded, becoming nearly cylindrical, and 

 are gradually and regularly arched backwards and inwards with a 

 bluntish extreme end. 



The horns of the genus are pecuhar for being lined internally with 

 a close velvety coat of short hair, directed towards the tip of the 

 cavity ; and the whole outer surface of the horn appears to be formed 

 of agglutinated hair, some separate hairs being seen on the surface. 



The peculiarity in the internal structure of the substance of the 

 horns of this genus shows, like the branched external form, a simi- 

 larity to the horns of the Deer ; the hairy horn being the analogue 

 of the deciduous velvet of the Deer, and the permanent hairy coat of 

 the Giraffe. The ring of hair round the base of the outer surface is 

 to be observed equally developed in the horn from Lord Derby's 

 Collection and in that of the common Prongbuck. 



March 27, 1855.— Dr. Gray, F.R.S., Vice-President, in the Chair. 



Note on the Sixteen Species of Texan Birds* named 

 BY Mr. Giraud of Nevst York, in 1841. By Philip Lutley 



SCLATER, M.A. 



1. Icterus Audubonii, Giraud (no plate), is Psarocolius mela- 

 nocephalusy Wagl. Isis, 1829, p. 750. A good figure and interesting 

 account of this fine species is given by Mr. Cassin in his new work 

 on the birds of California, Texas, Oregon, &c. pt. 5. p. 137. pi. xxi. 



2. MusciCAPA texensis, Giraud, pi. 1. This seems very like 

 Elcenia cayennensis (Linn.), (which is included by Mr. Swainson 

 in his Synopsis of the Birds of Mexico,) though rather larger in size. 



3. MusciCAPA Lawrenceii, Giraud, pi. 2. fig. 1. 



4. MusciCAPA fulvifrons, Giraud, pi. 2. fig. 2. 



5. Sylvia Halseii, Giraud, pi. 3. fig. 1. This and the two pre- 

 ceding species I do not recognise. 



6. MusciCAPA Derhamii, Giraud, pi. 3. fig. 2, is Muscicapa vul- 

 nerata, Wagl. Isis, 1831, p. 520 ; Setophaga vulnerata, Bp. Consp. 

 p. 313. 



7. MusciCAPA Belli, Giraud, pi. 4. fig. 1. This bird I believe 

 to be Sylvia chrysophrys, Licht. in Mus. Berol. ; Myiodioctes chrys- 

 ophrya, Licht. Nomencl. p. 32 ; Basileuterus chrysophrys, Bp. Consp. 



* Descriptions of sixteen new species of North American birds, collected in 

 Texas, 1838, described in the ' Annals of the New York Lyceum of Nat. Hist.' by 

 Jacob P. Giraud, Jun. — New York, 1841, 1 vol. fol. 



