268 , Scientific Notices 



valve of the Anomites thecarius, which alone is figured, the ligament 

 takes its origin near the centre of the shell from the middle line 

 by a broad pedicel on each side, which is directed outwards and to- 

 wards the hinge and expands considerably on its outer edge so as to 

 form an irregular oval, toothed on its margin. These foliaceous marks 

 of the ligament are all in relief upon the casts, and consequently must, 

 as M. Honinghaus remarks, have been depressions in the shell, which 

 was probably thicker in this part than elsewhere. Figures are also given 

 of the interior of Terebratula rosea, for the purpose of exhibiting its 

 bony apparatus, which varies in other species in its mode of branching, 

 hut has never been observed to be depressed as in Produclus. 



