448 Geological Society. 
Owing to the thorough and systematic way in which Mr. Kemp 
worked, remarks the author, the very large number of species 
collected is surprising, and as a series they differ much from what 
has been hitherto collected on the south face of the Himalayas. 
Many of these species owe their place in this collection to the 
initiative of Mr, Kemp, who hit upon the original idea of searching 
behind the overlapping leaves of the plantain. Col. Godwin-Austen 
suggests that some of the species thus obtained should be searched 
for in like positions farther to the west of the Abor Hills, also to 
the south of the Brahmaputra valley. 
Mr. Kemp fortunately made full and very careful notes of the 
coloration of these slugs, which in many cases were very brilliant ; 
but under the circumstances attending their capture we are 
not surprised to find that no notes could be taken as to the relation 
of these colours to their environment. The author’s specific 
descriptions are supplemented by some admirable photographs and 
a considerable number of figures of dissections. 
To the same issue of the ‘Records’ Dr. Walter Collinge con- 
tributes a short paper on the terrestrial Isopoda. Herein he 
describes one species new to science, for which he has found it 
necessary to make a new genus—fotungus pictus. He also describes 
a new species of the genus Cubaris—C. marmoratus. 
PROCEEDINGS OF LEARNED SOCIETIES. 
GEOLOGICAL SOCIETY. 
June 28th, 1916.—Dr. Alfred Harker, F.R.S., President, 
in the Chair. 
The following communication was read :— 
‘On a New Species of Hdestus from the Upper Car bonifaraae 
of Yorkshire.’ By A. Smith Woodward, LL.D., F.R.S., V.P.G.S. 
With a Geological Appendix by John Pringle, F.G.S. 
The new fossil described confirms the interpretation of Hdestus 
as a row of symphysial teeth of an Elasmobranch fish. The 
row of eight bilaterally- -symmetrical teeth, fused together, occurs 
at the tapering end of a pair of calcified cartilages, which 
evidently represent a jaw. An imperfect detached tooth probably 
belongs to an opposing row. All the teeth are unusually large 
compared with their base, and the serrated edges of most of 
them have clearly been worn during life. As in the case of 
the American Carboniferous Videstus mirus, small Orodont teeth 
ef the form named Campodus are scattered in the shale near the 
jaw. Markings on the Hdestus-teeth themselves suggest that 
they have been derived from the Campodus-type of tooth. The 
specimen, which represents a new species, was obtained by Mr. H. 
H. Freer from shale below the Rough Rock, in the upper part of the 
Millstone Grit, at Brockholes, near “Huddersfield, and was presented 
to the Museum of Practical Geology by Mr. E. Crowther. 
