Vol. XXXV.] 140 



the Crested Larks and the Fuerteventuran Bustard go to 

 prove that there are other factors to be considered. 



Mr. Read : I should like to ask why the resemblance 

 o£ the Cuckoo (^Surniculus lugubris) to the Drongo-Shrike 

 {Buchunga atrd) should be instanced as a case of mimicry ? 

 A Cuckoo does not usually resemble the species in the nest 

 of which it deposits its egg. 



The Chairman : In this case we have only assumed that 

 it is so, because the Cuckoo which lays its eggs in the nest 

 of the Drongo is entirely black. I alluded to it as one of 

 the three asserted instances in ornithology in which there is 

 a semblance of what is known as mimicry. The difference 

 between Protective Resemblance and Mimicry is not always 

 made clear: Protective Resemblance means the assumption 

 by a living creature of a resemblance to some plant or non- 

 organic object, while Mimicry is the imitating of one living 

 creature by another. 



List of Specimens and Drawings 

 exhibited by the Chairman to illustrate his Address. 



New Zealand Region. 

 Specimens to illustrate Flightlessness. 

 Cabalus modestus. 



Apteryx australis. 



„ haasti. 



„ oiveni. 

 Ocydromus australis 

 earli. 



}> 



fuscus. 



,, sylvestris. 

 Nesonetta aucklandica. 

 Mergus australis. 

 Stringops habroptilus. 

 Cyanorhamphus unicolor. 



Drawings to illustrate Flightlessness. 

 Dinornis ingens. 

 Megalapteryx huttoni. 

 Dinornis giganteus (skeleton to show 



absence of the shoulder-girdle). 

 Notornis hochstetteri. 



i 



