282 Scientific Intelligence. 
It is curious that I have not yet seen any trace of the genus Trina- 
cleus in Australian beds, nor Ampyz, while all the above-mentioned 
genera of Trilobites, with Acidaspis, Chirurus, &c., are well marked. 
. Note by F. B. Meek to his Review : on of 
Nebraska fossils, (See p. 170).—Since writing the remarks on the Ne- 
braska fossils investigated by Prof. Geinitz, an extensive collection 
slightly remov | from the extreme point of the shell, so as to leave 
‘very small lobe in front, best seen in internal casts. It differs, howe 
y from the European A. pinniformis, not only in never attall- 
radiating folds not seen on A. pinniformis, while its posterior Mae 
= seus in being slightly sinuous just ‘under the extremity ft 
