i ie 29° 
~~ In this species the mee per tip presents a furrow pa- 
rallel cn, 4 The lip is straight.’ The cheeks are 
a little ecting. There are six rounded tubercles 
on the front, and healthy pa on the back; 
the tail is small, and the shell is covered with small 
‘rounded tubercles of unequal sizes. os 
The above is Professor Brongniart’s description of 
this trilobite, which is the fameus Dudley fossil de 
scribed and figured by Littleton, in the Philosophical 
Transactions, (London) in 1750. _ According to Dal- 
man, several! distinct European species have been 
published under this name. The true C. Blumen-) 
bachii, he says, has thirteen articulations to the abdo- 
men, and about eight to the tail. In the cabinet a & 
G. a stonhauigh, Esq. .. we have exami 
fine ect specimen Dudley,* in which there 
is fourteen abdominal sane. _ There can be no doubt, 
how that several species have been confounded. 
Ender” e name of C. Bical bits. Dalman’ s oe 
Tu rculata and C. Pulchella as iy a Higiin 
oy America, and is one of the Pinna of the 
ee: an identical species on both continent 
iil %. 
The late e Correa sent a perfect specimen 
Brongniart, from the vicinity of hehewion 3 in the tite 
.. 
‘ 
_* This famous trilobite, once formed a . uent ee cabinet of 
Mr. Parkinson, the distinguished author of ‘oanic . 
raains,”’ and is accurately figured on | e rt 
splendid work. At the sale of the late Mr. Parkinson’s fossils, 
it was purchased by Mr. Featherstonh augh, ! . 
