VINE: NOTES ON YOREDALE POLYZOA. 
71 
was searching for Entomostraca. * I saw directly that many of the 
examples were of similar age, and probably of the same horizon, 
as my Hurst and Richmond species, but in addition there were 
several new forms previously unknown to me, either from 
the Yorkshire, Northumberland, or Scotch shales. In drawing 
Mr. Kirkby's attention to these facts he gave me full permission, 
either to describe, or make notes on the material in my possession, 
offering at the same time to supply me with other examples when- 
ever they turned up. Since then I have had a very fair supply from 
some one or other of the following localities : — 
1. Gleaston Castle — Yoredale Rocks — Near Barrow. 
2. Little Urswich Dalton (?) 
3. Holker Park „ Cark, W.L. 
4. Scales Green (very poor) ,, „ Furness. 
5. Kent's Bank — Scar Limestone — Morecambe Bay. 
G. Humphrey's Headf ,, (?) 
7. Amside ., Westmoreland. 
It is impossible for me to offer any original remarks on the 
rocks in question, as my studies are confined more particularly to 
Palseontological than to questions purely geological. Yet at the same 
time I always endeavour to make myself fully acquainted with the 
horizons of my fossils, especially so whenever I am dealing with 
Carboniferous forms. There are, however, peculiar fades amongst 
all Palaeozoic fossils that seem to separate species from almost 
similar forms found in rocks of later age — such as Mesozoic or 
Cainozoic — but the Polyzoa of the Carboniferous formation especially, 
are remarkable for a constancy of facial feature, whether found 
in American or in British rocks. I regard, therefore, the following 
remarks of Mr. R. Etheredge in one of his presidential addresses, 
as due rather to a paucity of lists, than to a paucity of a Polyzoa 
fauna of Yoredale age at least. 
" The Carboniferous Bryozoa (Polyzoa) as a group, constitute 
by far the largest series in any division of the Palaeozoic rocks. 
* See paper on Carboniferous Ostracoda ; Prof. T. Rupert Jones and James W. 
Kirkby, Esq., Geol. Mag., Dec, 1885, pp. 535-54:1. The authors give a list 
of Entomostraca found in the Shales of North Lancashire, both of the Scar 
and Yoredale Rocks : also Notes on the Foraminifera (Vine), *' Naturali.st,'' 
November, 1854. 
t The position of the shales at this locality is not clear. 
