378 
between the two districts, much less, in fact, than between the 
Cotteswolds and the Dorset-Somerset area, where there are 
found as common to both :— 
Terebratula ... re ne se 6 at least 
Glossothyris ... 1 
Zeilleria ma sce ee 2 
Aulacothyris whi sac eee 2 
Rhynchonella 5 
Acanthothyris 1 Total 17 
Of this number, eight belong to the Parkinsoni-zone, a 
period at which, as I shall shew, there was more complete con- 
nection owing to subsidence and submergence of a greater area. 
There are fifteen species of Brachiopoda which are peculiar 
to the Cotteswold area, a fact which points to the isolation of 
the district. There is only one small species peculiar to 
Dundry. 
It is, however, in its Ammonites* that Dundry most strik- 
ingly exhibits its connection with the Dorset-Somerset area, 
and more especially by those of the Humphriesianum zone its 
connection with the Sherborne district. About twenty species 
have been identified according to the following list :—+ 
Ludwigia Murchisone (Sow). 
»  rudis,S. Buckm. 
Lioceras concavum (Sow). 
Inssoceras preradiata (Douvillé). 
i Etheridgu, 8. Buckm. 
Oppelia subradiata (Sow). 
Cicotraustes, sp. 
Sonninia Bowert (J. Buckm.) 
a adicra (Waayen) variety. 
a Sowerbyi (Miller) 
= Browni (Sow). 
~ arenata (Quenstedt) 
SS proquinquans (Bayle) 
* For a knowledge of the Ammonite- and Brachiopod-fauna of Dundry 
I am much indebted to the labours of Mr E. Wilson, F.G.S., who has 
kindly forwarded numerous specimens for my inspection. 
+ This list will be much augmented when the new species are all named. 
