22 
structed, in the deep cutting close to the south-east end 
of the Ludlow Tunnel, were they were first noticed by 
R. Lightbody, Esq. Many of the beds are very full of 
fossils, the principal of which are two new Cephalaspis , 
viz., Ornatus and Murchisonia , the new genus Auchen- 
aspis Salteri , the large crustaceans Ptergyotus Ludense , 
and Banksii , also Eurypterus pygmceus, megalops , and 
accuminatus; fish spines, Berychia Klodeni and Lingula 
cornea , also occur in great abundance. 
Underneath Ludlow Castle the upper Ludlow rock 
is exposed, from whence several very fine specimens of 
the large trilobite Homalonotas Knightii have been 
obtained by Mr. Cocking. Immediately over Dinham 
Bridge, and almost facing it, is a small section of the 
uppermost Aymestry Limestone, full of fossils, some of 
which are the scarce crustacean Ceratiocaris robustus , 
several species of trilobites, of which Encrinurus punc - 
tatus and Proetus Stokesii are the most common; Lichas 
Bucklandii also occurs here rarely, but the following 
shells are pretty numerous, Ecculiomphalus loevis , Pteri - 
nea lineatula , Lingula striata , Rhynchonella navicula* 
Strophomena depressa , and jilosa (the last a very 
characteristic fossil of the upper beds of this formation); 
the coral Stenopera fibrosa , and a small variety of 
Graptolithus priodon, are also to be procured. 
Whitcliffe Hill is principally composed of the upper 
Ludlow rock, a large quarry of which stone is immed¬ 
iately opposite Mill Street, full of vast numbers of 
shells. The most productive situation is on the flat 
surface of the cliff, immediately above the footpath, in i 
thin bedded stone. Some of the remains found here 
are Pterygotus problematicus and punctatus , Spongarium , 
Edwardsii , Murchisonia articulata , Piscina rugata and 
striata , Chonetes lata with perfect spines, a new species 
of Pterinea , Theca Forbesii , Bellerophon expansus , and 
Orthoceras bullatum , ibex , and perelegans . In the blue 
