70 Mr.Kirby on a pair of horned mandibles of an Insect. 



albi, parce aurantiaco-variegati. Remiges nigrescentes, interne 

 ad apicera albo-marginata;, secuudariae parce fcrrugineo-sparsas, 

 subtus albas. Rectrices cineraceo-nigrae, interne, mediis excepiis, 

 albo-raarginatae, subtus albae. Pedes flavi, unguibus nigris. Lon- 

 gitude corporis^ 9 ^ unc. ; alee a carpo ad remigem 2^"", 6 -^^ ; mati- 

 dibulas superioris, ad ceram |^i, ad rictum ^; inferioris i| ; 

 iarsi, 1 ^^. 



Habitat in Brasilia. 



D"' Swainson, naturae indagatoris seduli, acutississimi, felicis- 

 simi, haec avis, ab illo primura detecta, merito nomen ferat. 



The following MS. note was appended to this bird in Mr. 

 Swainson's hand writing. " The only individual of this species 

 I ever met with was shot on the Table Land, about 10 leagues 

 in the interiour of Bahia in a direction W. S. W. from the Bay of 

 St. Salvador. It was perched on the trunk of a withered tree, 

 apparently watching some small birds. The tarsi are bright and 

 the irides hazel." 



[To be continued.^ 



A ax. IX. A brief Description of a pair of remarkable 

 horned mandibles of an Insect. Bj/ the Rev. William 

 KiRBY, F.R. Sf L.S.y Sfc. 



These mandibles * were taken from a string of green beads 

 and other trinkets brought from New Zealand, formerly in the 

 collection of Mr. G. Humphreys, and now in that of R, D. Alex- 

 ander, Esq. F. L. S. of Ispwich. They appear to have belonged 

 either to a Lucanus or a Prionus, and consist of the mandible it- 

 self, which is trigonal, very strong, and armed internally with five 

 short teeth, that of the base being a molary one, — and of a horn 

 nearly an inch and half long, incurved at the apex, armed with 

 an obtuse tooth below the middle, above which it is transversely 

 sulcated ; the sulci being separated by tubercles alternately ele- 

 vated and depressed. This gives the horn, which rises from the 

 base of the mandible and forms an acute angle with it, the ap- 

 pearance in some measure of that of an Antelope. The animal, 

 whatever it turns up, might be distinguished by the trivial apr 

 pellation of Antilopc. 



* Plate I, fig. 7. 



