234 Mr. O. Thomas on 
well as all known Tertiary A’schnine. With one exception, 
the length of wing is greater also than in any of the recent 
forms with which we have compared Trieschna. It is inter- 
esting to find that the exception in question is furnished by 
Ypiceeschna heros, the largest representatives of which would 
about equal Trieschna fossi in spread of wing. 
EXPLANATION OF PLATE XI. 
Trieschna gossi, gen. et sp. n., X 13. Bartonian of Bournemouth. 
Type, Brit. Mus, (Nat. Hist.). 
XXIV.—On Small Mammals obtained in Sankuru, South 
Congo, by Mr. H. Wilson, By OLDFIELD THOMAS. 
(Published by permission of the Trustees of the British Museum.) 
Tne British Museum has received from Mr. H. Wilson, of 
Inkongo, on the Sankuru River, Southern Belgian Congo, 
a small collection of mammals which are of sufficient interest 
to deserve a list of them being published. This region of the 
Congo has been little worked, and it is not surprising that 
several of the forms need description as new. 
It is to be hoped that Mr. Wilson may be able to obtain a 
complete series of the local Mammalia, as all are certain to 
form valuable additions to the National Collection. 
1. Hemigalago demidoffi, Fisch. 
6. 15,27. Inkongo. 
“« Kashila. Common in woods.”—H. W. 
2. Hidolon helvum, Kerr. 
OG. tls Be . 32. .enkongo, 
“Very common.”’—H. W. 
3. Saecolaimus peli, Temm. 
9. 383. Inkongo. 
“ Shot in evening hunting insects.”—H. W. 
4, Crocidura sp. 
9.2. Inkongo, 
5. Mungos ichneumon, L. 
3. Inkongo. 
