OF THE WEALDEN. 
253 
quarry in Kent or Sussex where they may not 
be found. Hemispherical teeth, the hufonites of 
the early geologists, either single, or disposed in 
rows on a bony plate, are almost equally common ; 
both the scales and teeth belong to the same species 
of fish, as a beautiful s})ecimen in my collection 
has established. A pectoral fin, and traces of the 
dorsal fin ; some of the bony rays of the gills, and 
])ortions of the operculum ; are the only other 
parts of this ichthyolite with which we are at ])re- 
sent acquainted. The rhomboidal scales, &c. prove 
that the original was related to those s])ecies of 
pike which are comprised in the genus Lepisosteus 
of Lacepede, and I have given the specific name 
as a tribute of respect due to a gentleman by 
whose labours the establishment of the true geo- 
logical relations of the Wealden formation has 
been principally effected. 
The other species of fishes whose remains occur 
in these strata may be referred to the follow- 
ing : — 
1. Fish, having tricuspid teeth longitudinally 
striated ; these differ from the teeth found in the 
chalk, but resemble some from the Stonesfield 
slate. 
2. Teeth slightly curved, with sharp entire 
edges. 
3. Palate-teeth, approximating to a small palate 
found at Stonesfield. 
4. Palatal bone of a fish allied to the Ray. 
Slightly curved and nearly fiat pieces of enamel 
occu})y the centre ; and these are bordered by two 
rows of depressed sub-conical bones or teeth. 
