SCIENTIFIC SOCIETIES. 193 
Region. The American Otters, for want of a larger series of specimens, 
could not at present be satisfactorily worked out. 
Mr. E. T. Newton read a paper entitled “ A Contribution to the History 
of Eocene Siluroid Fishes.” Mr. Newton observed that spines of Siluroid 
Fishes from the Bracklesham Beds were described by Dixon, in his ‘ Fossils 
of Sussex’ (1850), and referred to the genus Silurus. Mr. A. Smith-Wood- 
ward had recently shown good reason for referring these specimens, and 
certain cephalic plates from the same horizon, to the tropical genus Arius. 
The greater part of a skull, from the Eocene Beds of Barton, in the Museum 
of the Geological Survey, confirmed the latter generic reference. Its close 
resemblance to a skull of Arius gagorides in the British Museum left no 
room for questioning their generic relationship, while at the same time the 
fossil differed from any known species of Arius. The fortunate discovery of 
one of the otoliths within the fossil skull, and its resemblance in important 
points to that of A. gagorides, still further confirmed this determination. 
Some other otoliths from Barton, and one from Madagascar were also 
referred to the genus Arius. 
Mr. A. Smith-Woodward read a note on Bucklandium diluvii, a fossil 
from the London Clay of Sheppey, noticed by Konig, and hitherto not 
satisfactorily determined. It was shown that this fossil was a portion of 
the skull of a Siluroid Fish allied to the existing genus Auchenoglanis. 
A communication was read from Mr. H. W. Bates, containing descrip- 
tions of new species of the coleopterous family Carabidae, collected by 
Mr. J. H. Leech in Kashmir and Baltistan. A second communication from 
Mr. Bates gave descriptions of some new species of the coleopterous families 
Cicindelid@ and Carabidae, taken by Mr. Pratt at Chang Yang, near Ichang, 
in China.—P, L. Sctater, Secretary. 
EnromoxocicaL Society or Lonpon. 
April 3, 1889.— Mr. F. Du Canr-Gopman, M.A., F.R.S., Vice- 
President, in the chair. 
Messrs. A. Cant, C. Cave, N. F. Dobrée, J. Harrison, 8. L. Mosley, 
and B. G. Nevinson, were elected Fellows. 
Mr. Osbert Salvin exhibited specimens of Ornithoptera trojana, Staud., 
and OQ. plateni, Staud., received from Dr. Staudinger, and obtained in 
Palawan, an island between Borneo and the Philippines. He remarked 
that Ornithoptera trojana was allied to O. brookiana, Wall. 
Mr. R. M‘Lachlan exhibited, and made remarks on, seven examples of 
ZEschna borealis, Zett., a little-known species of European Dragonfly. 
He said that some of the specimens were captured by himself at Rannoch, 
Scotland, in June, 1865, when he was accompanied by Dr. Sharp and the 
ZOOLOGIST.—MAY, 1889. Q 
