PLATE V. 



Murchisonce-zone . 



LlOCERAS BRADFORDENSE (8. Bliclcman). 



Fig. 1. — Nearly adult specimen, showing the peculiar ribbing in centre, also 

 the rather quick expansion of the centre after a certain size, thus giving the shell 

 a much flatter appearance. Specimens much larger have been met with, but 

 imperfect. Natural size. My Collection. From near Beaminster, Dorset. The 

 whole of the body-chamber is present. (Page 22.) 



Fig. 2. — Front view. The keel is scarcely more conspicuous where the test is 

 present. 



