53 
Specimens of the following marine fishes were exhibited : — 
By Mr. H. C. Chadwick, Short-spined Sea Bull-head, 
Acanthocottus scorpius ; Fry of Bull-head, Coitus huhalis, 
just emerged from the ova; Black Goby, Gohius niger ; 
Montagu’s sucking fish, Liparis Montagui ; Spotted Gunnel, 
or Butterfish, Muroenoides guttata. 
By Mr, R. D. Darbishire, F.G.S,, 
Leptoceplialus Morrisii, found amongst a number of fishes 
placed on a field at Lancaster for manure. The Bimaculated 
sucker, Lepidogaster bimaculatus ; Viviparous Blenny, 
Zoarcus vivaparus from Oban ; and the red-band fish, Gepola 
Tubescens, which was offered in considerable quantities in 
the market at Nice, in March. 
Mr. W. Blackburn, F.R.M.S,, shewed specimens of the 
eggs of the Vapourer moth, Orgyia antiqua, under the 
microscope. 
The female Vapourer Moth has only rudimentary wings, 
and when she has undergone her transformation in her 
silken cocoon, she lays her eggs upon it, crawling all over 
it in order to do so. Her mouth is rudimentary, there is no 
proboscis, and when she has deposited her eggs she dies 
exhausted. 
The specimen from which I obtained the eggs which I 
exhibit to-night was dug out of the earth as a chrysalis. In 
about two weeks the imago issued from the pupal case, and 
began to lay eggs. She continued the process for about 
twenty-four hours, during which she laid more than 300 
eggs. The egg has the shape of a deep kettle-drum, the 
round surface of which is creamy white, and is coated with 
a glairy secretion, which serves to fix it to the object upon 
which it falls, and also to fasten the eggs together. The 
egg was invai’iably discharged with this surface foremost, and 
the force of expulsion was sufficient occasionally to eject it 
a distance equal to two-thirds the length of the body of 
