58 Mr* Parkinson’s Remarks on Fossils 
Ammonites ornatus . . . Rounded ; the inner whorls displayed. Strong flpxuous 
costae arising from the inner margin alternate with 
others from the middle of the whorl, and terminate 
with those nearly in the middle of the outer margin, 
close to the siphuncle. Found also at Cambridge. 
..... pansus .... Rounded ; the whorls rapidly encreasing. Sharp 
ridges, arising furcated from tubercles on the inner 
side of the whorls, with irregular supplementary 
ones, pass over the round outer margin, and enclose 
the siphuncle. Found also at Mailing. 
..... lautus .... Flattish ; inside of the whorls set with obliquely dis- 
persed ridges, terminating in tubercles; frpm each 
tubercle proceed two or three rays, passing in an 
elegant sweep to the outer margin, where they unite 
in pairs and form tubercles, by which the two 
serrato-tuberculated edges are formed, enclosing the 
siphuncle. Found also at Cambridge. 
Some other species of ammonite are found at Mailing 
and at Cambridge. 
Belemnite A small species, having an inner tube in the alveolus, 
being the same as that found at Stutgard. Found 
also at Cambridge. 
Hamites With plain oblique costae. Found also at Cambridge. 
. . , . elegans .... Not cylindrical, but flattish. Near to each margin is 
a row of tubercles, which are connected transversely 
by oblique costae, dividing as they rise from the 
tubercle of one margin, and uniting at the tubercle 
of the opposite margin. Between these are two 
intermediate costae, which pass round the whole of 
the limb, and with two more costae passing from 
each tubercle over the inner margin, form upon it a 
closely crenulated surface. 
A hamites is also found at Mailing, but it seems 
to belong to a species distinct from the former two. 
Pleurotoma ? Found also at Mailing, with several other species. 
Teredo ? Found also at Cambridge. 
Inoceramus concentricus. Cordiform, the upper part of each valve having an 
extended and twisted neck, so that the beaks are 
placed obliquely and appear distorted. The surface 
