106 THE ELEMENTS 



Fig. 2nd - OSTREA L.EVIS. 



Shell thin, flat, sub-orbicular, and 

 pellucid, longitudinally and trans- 

 versely striated ; one ear considerably 

 larger than the other; colour various, 

 sometimes orange, dark pink, &c. 

 Not uncommon on the coast of Nor- 

 thumberland. The strise on this shell 

 is so minute, that it can seldom be 

 seen with the naked eye. 



Linn. Trans, vol. viii. page 100. 

 f Longitudinal and transverse striae, 

 hh ears or auricles. 



Fig. 3d -TELLINA FABULA. 

 Shell very thin, pellucid and oval, 

 generally of a dull yellow, and darker 

 towards the umbo; which is nearly 

 central, pointed, and turned a little to 

 one side; the anterior side slopes to 

 an obtuse point, the posterior side is 

 large and rounded ; hinge furnished 

 with three teeth in one valve and two 

 in the other. 



This shell is often mistaken for the 



