526 BALANIDA. 
CETACEA. BAL/ENIDE. 
Fig. 220. 
Petro-tympanic, or Ear-bone of the recent Cachalot. 4 nat. size. 
CETOTOLITES. Fossil Ear-bones of Whales. 
Tue Rev. Professor Henslow, in his Paper entitled ‘“‘ On 
Concretions in the Red-crag at Felixstow, Suffolk,” * in 
which the attention of geologists was first called to their 
animal and cetaceous origin, has appended my determina- 
tions of some of the most remarkable of those bodies, by 
which not fewer than three, and probably four, species of 
whales have been added to the Catalogue of British Fossil 
Mammalia. I have proposed to call the bodies in question 
“cetotolites,”+ as they consist of portions of the petro- 
tympanics, or ear-bones of large Cetacea. 
* Proceedings of the Geological Society, Dec. 13, 1843, pp. 281, 283. 
+ x%703, whale ; as, ear ; Aiéos, stone. 
