TELLINA. 151 



GIBBOUS TELLEN. 



13. Tellina gibbosa. T. testa subtrigona, ventricosa, subtiliter transver- 

 sim striata; cardinis dente later all valido. Linn. Gmel. p. 3231. 



Shell somewhat triangular, ventricose, finely striated transversely; hinge 

 with a strong lateral tooth, 



Gualt. Test. pi. 77. f. Q. 



A heart-shaped shell, of a whitish green colour, 

 much inflated, and bending inwards on both sides; 

 hinge with a single primary tooth. Length three quar- 

 ters of an inch, breadth the same. Described only by 

 Gualtieri. r 



UNEQUAL-SIDED TELLEN. 



14. Tellina inaequilatera. T. testa tequivalvi, subrotunda, alba, striis 

 versus marginem nonnullis transversis. Linn. Gmel. p. 3231. 



Shell of equal valves, roundish, white; with a few transverse striae to- 

 wards the margin. 



Gualt. Test. pi. 88. f. C. 



This is an obscure species, described by Gualtieri, 

 but very indifferently defined. 



KNORR'S TELLEN. 



15. Tellina Knorrii. T. testa splendide rubra, margine violacea. Linn. 



Gmel. p. 3231. 

 Shell bright red, with a violet margin. 

 Knorr Vergn. 5. pi. 21. f. 5. 



This species, which has been named after its disco- 

 verer, is an inch and a quarter long, and two inches 

 broad. Its country is not mentioned. 



