420 NEW HELIX.—CUCKOW. 
what sparingly with hairs, which are short, lax, 
silvery, and very fine. | 
On referring this species to Mr. T. Colley, I found 
that he already possessed two dead specimens, and 
whichhe had referred to the swbrufescens of Fleming. 
With this shell, so far as description can be trusted, 
it certainly greatly accords, but then Mr. Miller the 
discoverer, saysin hisaccount (Annals of Philosophy 
vol. xix. p. 679) that his shell is “ swbhumbzlicated, 
very slightly carinated,” and “ not hispid,” so that 
independently of the high probability of the present 
specimens being new, it would seem that if syno- 
nimous with subrufescens, Mr. Miller has failed to 
discriminate some of its most conspicuous features. 
No size is named for subrufescens by Mr. Miller. 
Dr. Turton has no notice of that shell, or of ours. 
I suggest the trivial name subvirescens for the 
present supposed novelty in British Conchology. 
I am indebted to Mr. Colley for drawings of my 
specimen, and by his suggestion, the engravings 
have been limited to correct outline and proportions, 
not attempting the finer markings, the pubescence 
or elaborate shading, lest wrong appearances should 
be given. 
Cuckows apparently enter into a compact with 
those birds on whom the nurture of their young is 
to devolve; frequently the Titlark is seen flying in 
company with a Cuckow, a fact I once witnessed 
quite close to the town of Plymouth. Young Cuc- 
kows stay with us long after the old birds, in order 
to gain enough strength for their migration, for 
whilst the latter quit us in July, the young are often 
found straggling with us in September, and I am 
told one was shot in October 1838, by Mr. Han- 
naford of Plymouth. On the authority of R. Julian, 
esq. of Estover, I am here enabled to add a curious 
feature in the history of this bird: he observed one 
for several successive evenings, to keep on the alert 
