50 



level; in some states of preservation, the worn surface 

 is minutely punctated, but this is seldom observable. It 

 is distinguished from the globose variety of T. digona 

 t, 96. by the narrowness of its front. 



Collected in abundance at Nunuey, near Frome, by 

 the Rev. J. Ireland ; it has also been found at Bridport. 



TEREBRATULA emamnata. 



»' 



TAB. CCCCXXXY.^fg. 6. 



Spec. Char. Subrliomboidal ; the lesser valve 

 nearly flat, the other convex ; front defined 

 by two angles or emarginate ; edge be- 

 coming blunt by age. 



A HE inequality of the valves is a good character to 

 distinguish this species by. When young the projections 

 at the extremities of the short angular front, and which 

 resemble those in T. digona, are hardly observable while 

 in old individuals with almost flat borders, they are very 

 conspicuous ; tlie perforated beak has a decurvent keel 

 upon each side of it. 



A rather uncommon Terebratula, discovered at Nunney 

 near Frome, along with several others, by the Rev. J. 

 Ireland. 



