LIST OF CHELTENHAM FOSSILS. 
107 
ceramus dubius by our local geologists^ nor can 
I see why it bas been separated from tbat genus, 
CucuIIaa ohlongaj inferior oolite (upper beds) and Grypbite 
grit ; only casts are found. 
decussatttj Stonesfield slate. In a bed eitber above 
or near the Stonesfield slate ; I am inclined to 
think it a Fuller^s earth specimen. 
Cirrus carinatus, inferior oolite (upper beds). This shell is 
common to our oolite; Sowerby^s figure was 
taken from a Leckhampton specimen. 
Cardium dissimile, marlstone^ upper beds of the inferior oolite. 
truncatum, marlstone. 
Gryphcea incurva, lower lias, common, but only in the lower 
lias beds ; it varies in size from that of a bean 
to three inches in length. 
oUiquata, lower lias. 
dilatata. Top bed of the inferior oolite. The 
bed in which this shell occurs is called Grypbite 
grit, being made up principally of these shells. 
gigantea, marlstone. This shell marks the marl- 
stone of this district. 
Gervillia aviculoides, in the clay beds. 
acuta J lower lias. 
Hippopodium ponderosum, lower lias. These occur in two 
beds somewhat removed from each other ; the 
common form is in the lower clay beds. A va- 
riety from the yellow lias beds, has the beaks 
larger and more remote ; the upper part more 
concave in front ; it does not run into such va- 
rieties. Gryphsea incurva is frequently attached 
to the specimens in the lower bed; but this shell 
is not found in the upper one. 
Helliana eocpansaj marlstone. 
soknoideSj lower lias. 
N 3 . 
