43 
are principally Fishes, Plants, and Shells, and in the two 
former the collection is specially excellent. Forty-two beauti¬ 
ful fishes are from the neighbourhood of Midridge, in Durham, 
one of them, namely, Dorypterus Hoffmanni^ being the figured 
type, 
The other species are—• 
Pygopterus mandibularis. 
Palseoniscus elegans. 
„ comptus. 
„ varians. 
„ glaphyrus. 
„ altus. 
„ longissimus. 
Platysomus macrurus. 
Coelaeanthus granulosus, 
Acrolepis Sedgwickii, and 
Platysomus striatus. 
The Plants number 49 specimens belonging to the species 
Caiilerpites selaginoides and Voltzia PhilUjmi. 
The large concretionary rock masses, 15 in number, from 
Sunderland, also deserve attention. 
6. From the Ehsetic rocks there are a few Shells and 
Insects’ wings, also fifty minute Fish Teeth from the Triassic 
drift, collected by Charles Moore, Esq., of Bath. 
7. The Jurassic collection (Lias and Oolite) numbers over 
1,300 specimens. It is valuable for its excellent Brachiopods, 
of which there are 466 selected specimens, including some of 
the interesting diminutive types from the Lias and Inferior 
Oolite of Bath. 
There is a very perfect example of a small Ichthyosaurus 
skeleton, measuring 3 by 1 feet, also the jaws, paddle and other 
portions of Ichthyosauiais, all from the Lias of Lyme Eegis. 
Also a beautiful head, with part of body of a fish (Pachycormus), 
from the Lias of Ilminster. 
A fine example of Ammonites stellaris, over 2 feet in 
diameter, is cut and polished to shew its internal structure. 
In the Yorkshire Oolites the plants from the Estuarine 
series of the coast are the most noteworthy. 
