CONCHOLOGY. 



45 



T. sulphurea. 



T. foliacea. 



T. operculata. 



T. rosea. 



T. chloroleuca. 



T. remies. 



T. sulcata. 



T. crassa. 



T. laevigata. 



T. linguafelis. 



T. rugosa. 



T. lacunosa. 



T. gargadia. 



T. pristis. 



T. multangula. 



T. polygona. 



T. capsoides. 

 T. radiata. The radiated 

 Shell elongated ; posterior 

 than the anterior. 



T. exilis. 

 T. donacina. 

 T. nitida. 

 T. scalaris. 

 T. psammotella. 

 T. striatula. 

 T. scobinata. 

 T. decussata. 

 T. Brasiliana. 

 T. obliqua. 

 T. umbonella. 

 T. deltoidalis. 

 T, nymphahs. 

 T. solidula. 

 T. bimaculata. 

 T. sexradiata. 

 T. ostracea. 



Tellen. PI. 8, fig. 5. 



side shorter and more narrow 



T. foliacea. The foliaceous Tellen. 



Species transversely oblong ; upon the edge of the front 

 side of either valve are rows of serrated teeth, running from 

 the apex to the margin. 



T. bimaculata. The double-spotted Tellen. 

 Species orbicular, easily known by answering to its com- 

 mon name. 



T.fahula. The false Tellen. 



Shell very thin, pellucid, and oval ; yellowish colour, 

 darker towards the umbo, which is nearly central, pointed 

 and turned a little to one side ; anterior side slopes to an 

 obtuse point ; posterior side large and rounded ; hinge with 

 three teeth in one valve and two in the other. 



T. scobinata. The rasp Tellen. 



Species oval or sub-orbicular, sub-equilateral. 



