TELLINA. 153 



SPOTTED TELLEN. 



18. Tellina maculata. T. testa subovata, crassiuscula, decussation, striata, 

 maculis irregularibus. Adams in Act. Soc. Linn. 3. p. 252. Item 

 8. p. 48. 



Shell sub-oval, thickish, with decussated striae, and irregular spots. 



This species, which was found at Tenby, in South 

 Wales, by the late Mr. Adams, has been admitted on his 

 authority into the excellent descriptive catalogue of 

 British Testacea, with which Dr. Maton, and Mr. 

 Rackett, have enriched the eighth volume of the Lin- 

 naean Transactions. 



RIVER TELLEN. 



PI. 47. /. 6. 



19. Tellina amnica. T. testa oblique subovata, transversim sulcata. 

 Maton in Act. Soc. Linn. 3. p. 44. pi. 13. f. 37, 38. (T. rivalis), and 

 8. p. 60. 



Shell obliquely sub-oval, transversely grooved. 



Testa subcordiformi, transversim sulcata, umbone obtuso. Linn. Gmel. 



p. 3242. Mull. Zool. Dan. Prodr. 2967. 

 Gualt. Test. pi. 7. f. C. C. Chem. Conch. 6. pi. 13. f. 134. Donov. Brit. 



Shells, t. 64. f. 2. Pult. in Hutch. Dorset, pi. 7. f. 2. a. Mont. Test. 



Brit. p. 86. Cardium amnicum. 



A convex shell, somewhat heart-shaped, transversely 

 grooved, and of a shining horn colour. The inside is 

 bluish-white ; the hinge is not in the middle of the 

 shell ; there are two teeth in one valve, and one in the 

 other, besides the lateral teeth, which are strong and 

 conspicuous. Length about a quarter of an inch, 

 breadth three eighths of an inch. 



Inhabits the Thames, and other European rivers. 

 Was first distinguished as British by Dr. Maton, who 

 found it in the River Avon. 



