cxamplo; altliougli tlio speeios of tlie lattor avv about tweuty 

 times more numerous tlia-u tliose of tlie birds. This is due, 

 mostly, to tlie fact that many of our workiug naturalists are 

 too busy in making new species, and even new genera ; and 

 it would be much preferable if they shoukl dedicate their 

 talents to making good revisions of goneraj or good mono- 

 graplis. Only thus will it bo possible to make a satisfactory 

 classification. 



Aftcr the StntfJiioncf^ como the Apfcvlijrs, Cnjiifnri, 

 GraJlce, and Rallidce^ for whicli I proposo a new order under 

 the name of liaUi . Agreeing with Professor Gari'od that 

 these birds are well pLaced here, I take the liberty to re- 

 commend to this learned anatomist the study of Families 

 II. to VIII., to ascertain if they are allproperly pkced iu this 

 order; as I see great differences between them, particularly 

 in the structure of the legs and feet. I recommend them 

 also to Baron von Hugelj when he prepares his monograph 

 of these birds. 



I propose a new order — Palaincdcn' — for the Palaraadea, 

 Chauna, and Ischyornis, and I adopt the order Opisfliocomi 

 for the singukar bird " Opisthocomus cristatus/' l^ut I am 

 of opinion that this bird, as well as the Palamedeidas, coukl 

 probably be inckided in the next order of the Gallina>. 



According to the cclebrated traveller, Mr. H. W. Bates, 

 the Opisthocomus is very common in Brazik He saw largo 

 quantities of them on the Amazons. They used to go 

 about in small flocks, eating tho fruits and seeds of the trees 

 on which they were perched ; and in the same way I have 

 found the Ortalida vctuka on the River Papaloapam, in 

 Mexico. 



I propose the new order of Ftcrock for the Pteroclidas- 

 These birds form the passagc from the GalUnce to the Colunihcr. 

 1 have adopted the order LiniicoJu' for the Plovers, Snipes, 

 etc, which I pkice immediately after CoJnmhcc, with which 

 they have a great resemblance, especially by their anatomical 

 structure. At the end of this order I have put the Scolopa- 

 cidfe, which are verv closely allied to the TantalidfB, by which 



