Notes and Comments. 159 
raustes coccothraustes ; the partridge Perdix perdix perdix. Can 
anything be more absurd? Equally absurd is the endeavour 
to deprive the song thrush of the name by which-it is known to 
all English-speaking naturalists, Turdus musicus, to tack this 
on to the redwing, and call the song thrush Turdus philomelus 
Clarkei—and this sort of upheaval is to apply to many of our 
common and well-known birds. If this sort of thing is per- 
sisted in, every small clique of naturalists who fancy the work, 
can thrust upon an inoffensive public a new nomenclature. 
Then the best thing will be to ignore scientific names altogether, 
and use the ordinary English names. 
SUB-SPECIES. 
The absurdity of this sub-species creating has been fully 
demonstrated in two of the latest discoveries, one of which 
is to create a sub-species of the British black game, because, 
forsooth, the female differs somewhat from what they consider 
the type; the male, mind you, being no different. The lesser 
black-backed gull has also, on account of its size and different 
colour of the mantle, to be added to the distinguished list of 
sub-species. The fallacy of this can easily be seen by any one 
who will visit a big colony of these birds, where they will be 
seen to vary considerably, not only in the shade of the mantle, 
but also in size of the individual birds.’ 
THE KELLAWAYS ROCK OF SCARBOROUGH 
At a recent meeting of the London Geological Society, a 
paper on the ‘ Kelloway Rock’ of Scarborough, was read by 
Mr. 5. 5. Buckman, F.G.S. The Author has studied the types 
of ammonites from the Kellaways Rock described by Leckenby, 
preserved in the Sedgwick Museum, Cambridge, and a series 
of Yorkshire Kellaways Rock ammonities from the Museum 
of Practical Geology, London. He has grouped these ammon- 
ites according to their different matrices, and finds that they 
indicate several different zones. These zones he arranges in 
sequence, and suggests how they may be compared with the 
sections of Kellaways Rock of Scarborough given by Leckenby 
and by Fox-Strangways. The exact order of the zones is, 
in one or two cases, not considered to be proved, but the 
paper is offered with the idea of indicating where further 
work is required. An examination of the ammonite fauna of 
the Yorkshire zones shows that the so-called ‘ Kellaways 
Rock’ of Yorkshire is in part contemporaneous with the 
Oxford Clay of the Midlands and the South of England, and 
in part contains faunal facies not represented in these areas, 
but peculiar to Yorkshire so far as England is concerned ; 
they show, however, some affinity with faunal facies in Russia 
and in Normandy. 
1913 April 1. 
