54 



SANGUIN0LAR1A. 

 solen occidens. — Gmelin. 

 Mawes Linnaus, fig. 6, plate 5. 

 Although these shells appear nearly allied to the 

 Solenes, with which they have hitherto been uni- 

 formly classed, they possess, however, a very distinct- 

 ly marked difference, never having the transverse ob- 

 long shape, or the edge of the valves parallel to the 

 base. The valves are elliptical, with rounded, slight- 

 ly gaping extremities. The upper margin arched. 

 Hinge with two contiguous teeth on each valve. 

 Sanguinolaria occidens Sanguinolaria livida 

 rosea ru & osa 



PSAMMOB1A. 



TELLINA FERROENSIS.— Gmelin. 



Mawes Linnteus, f. 4, p. 6. 

 Like the Sanguinolaria, these shells appear allied to 

 the Solenes, gaping a little at the sides; and conse- 

 quently many authors have so classed them—They 

 are, however, different in form, in which they more 

 nearly resemble that of the Tellens; but beside, gap- 



