452 - Prof. T. R. Jones and Mr. J. W. Karkby on the 
LXIII.—WNotes on the Paleozoic Bivalved Entomostraca.— 
No. XXXII.* Some Carboniferous Ostracoda from York- 
shire. By Professor T. Rupert Jones, F.R.S8., and 
James W. Kirksey, Esq. 
[Plate XXI.] 
SOME years ago we received five “ slides” of Carboniferous 
Ostracoda from our friend the late Dr. H. B. Brady, then of 
Newcastle-on-Tyne. These slides having now been ex- 
amined, we describe the results without further delay. 
These mounted Ostracoda had been obtained in the exam- 
ination of washings of shale from two localities. One of 
these is given as “Hurst, head of Swaledale; under the 
Underset Chert:” the other as ‘ Downholme, Swaledale ; 
beneath Red Beds.” Dr. Brady wrote that he had received 
the material from Mr. E. Wood, of Richmond, and that it 
was “ from the Yoredale Rocks, from the head of Wensley- 
dale, or somewhere there”’}. This is all we know about the 
geological position or the neighbourhood of the localities ; 
both are undoubtedly good places for fossil Ostraccda, and 
well worth further search. 
The specimens are numerous and very well preserved. 
Among them are some extremely rare forms, besides one or 
two that are not easy to determine. Otherwise the species 
are well known from the Yoredale Rocks of the north of 
England and the Carboniferous-Limestone series of Scotland. 
Ostracoda from the localities above mentioned were 
described by the late Mr. G. R. Vine in 1883 in the ‘ Pro- 
ceedings of the Yorkshire Geological and Polytechnic 
Society,’ n. s. vol. viii. 1884, pp. 226-238. His specimens 
were obtained by Mr. John Harker, of Richmond; but parti- 
culars as to where Hurst and Downholme are situated were 
not given to him. He records eleven species, all of which, 
except Bairdia curta, M‘Coy, appear to occur in our lot. 
The torms figured by him as Airkbya umbonata and K, bi- 
partita (which we have not found) are probably varieties of 
* No. XXXI. was published in the Ann. & Mag. Nat. Hist. ser. 6 
vol, xv. 1895, pp. 69-67. 
+ For the geology of Swaledale see the ‘Memoirs Geol. Survey, 
Explanation of Quarter-sheet 97, N.W., New Series, Sheet 40, 1891. 
The “ Underset Chert”’ of the Yoredale Series is mentioned at pages 108 
and 110, and the “ Red Beds” at pages 96, 99, 110, and 170, 
Downholme is 5 miles 8.W. of Richmond, Yorkshire. Quarter-sheet 
97, N.W., Geol. Survey Map. 
Wensleydale and the head of Swaledale are about 4 miles apart. 
