362 
‘On the opposite or Waterford side of the Haven the old red sand- 
stone occurs at Creden Hill and Knockavelish Head, eminences cor- 
responding to Broom Hill; a small patch of it is displayed a little 
to the northwards, inserted unconformably in the slate series ; and 
it forms the rock of Passage, a prolongation of the old red sandstone 
near Arthurstown. Between Knockavelish Head and Passage the 
slate series prevails, except near Newtown Head, where trap-rocks 
are exposed. A little to the north of that headland are some highly 
inclined fossiliferous strata, corresponding in position to the beds 
near Duncannon Fort on the opposite side of the Haven ; they are 
visible only at ebb-tide. 
The trap-rocks constitute the point on which stands Duncannon 
Fort ; Newtown Head is also formed of trap; and Mr. Austin is’ of 
opinion that the same mass strikes westwards to Tramore and thence 
to Great Newtown Head; where it is lost in the St. George’s Chan- 
nel. Along this line, wherever the trap comes to the surface, the 
slates are tilted. 
With respect to the numerous contortions exhibited in the schist- 
ose rocks, Mr. Austin ascribes their existence to lateral ‘pressure, 
which he says must have been excessive; and he is of opinion that 
a considerable portion of the upper part of these contorted beds has 
been removed by denudation. 
A paper by C. Lyell, Esq.,; F.G.S.,) was afterwards read, ‘‘ On the 
Bresliwatel Fossil ees of Mundesley, as determined by M. 
Agassiz.” 
In a memoir on the evilded formation and asetrtelal freshwater 
deposits of Eastern Norfolk*, Mr. Lyell stated, on the authority of 
Mr. Yarrell and the Rev. L. J enyns, that the scales and teeth of fishes 
which had'been then procured ‘in the fluviatile beds of Mundesley 
belonged to the EHsox lucius, to a trout or an undeterminable species 
of Salmo; to a carp, ae iiees the Cyprinus vee and 'to a distinet 
species of Perca. 
This collection, with some additions Leeently sent to the author 
by Mr. Wigham, was examined by M: Agassiz during his late visit 
to England. The decision of Mr. Jenyns with respect tothe distinet- 
ness of the perch, M. Agassiz fully confirmed’; but he was of opinion 
that the pike differs from the Esox luctus; and that the supposed carp 
is aspecies of Leuciscus ; and’that the ‘trout is not truly a eile al- 
though one of the same great family. °° 
From this examination, therefore, Mr: Lyell says it is athe that 
these remains belong to species’ ‘not identical with any European 
freshwater fishes’ hitherto: described; but that'they nevertheless be- 
long to an ichthyological fauna; more modern and more: nearly re- 
sembling the’ recent wus any ses with which M. Agassiz is ac- 
quainted in a fossil state: 
Similar remains’ have been found by Mr: Lyell at’ Runton, near 
Prorkey, but both there and at Mundesley the associated testacea all 
ia to living: freshwater species ; even the Paludina minute Siete 
* See Proceedings, ante, ps 171, 
