23 



* L. RADULA. Tellina Radula. Mont. Test. Brit., voh I, 



p. (58. pi. 2, fig L, 2. Lucina R. Flem. Brit. An., p. 441. 

 Montagu found it in abundance at Fal.mouth ; and I have 

 obtained it on the east coast. 



L. FLEXUOSA. Tellina F. Mont. Test. Brit., vol. 1, 



p. 27. Bunina F. Flem. Brit. An., p. 442. 



Montagu says " It is abundant in the sand of Falmouth 

 harbour; it is less common in other districts. 

 L. PISIFORMJS. Cardium Discors, Mont. Test. Brit., 



voi. 1, p. 04. L P. Flem. Brit. An., p,. 44-2. 



Montagu says (: we hesitate to determine this shell to 

 be actually English, having only found one dead specimen 

 rn sand at Falmouth, taken from the harbour." 

 L. ARCUATA. Cardium A. Mont. Test. Brit., vol. 1, 



p. 85, p|. 3, fig. 2. Lucina A. Flem. Brit. An., p. 442. 



" We found this elegant species in Falmouth harbour, 

 dredged, tip with sand for manure; but not common." 

 Montagu, 



L. LiVC TEA, Telina L, Lin. Mont. Test. Brit,, vol, f, 

 p. 10, pi. 2, fig, 4. Loripes Lacteus, Flem. Brit. An., 

 p. 430. Scarcely uncommon, 



DON AX. 



GENERIC CHARACTER: Shell transverse, equal valved, 

 unequal sided ;. anterior .side very short and obtuse. Two 

 cardinal teeth either in both valves, or only in one; one 

 or two lateral teeth, more or less distant. Ligament short, 

 external, inserted in the place occupied by the lunula. 

 This genus is characterized by its rather flattened, and 

 almost triangular shell, and by. having at the hinge, beside 

 the cardinal teeth, one or two rather distant lateral teeth, 

 separated from the cardinal teeth,, and analogous to the 

 lateral teeth of the Mactrae, SuceineaB and Tellinae. The liga- 

 ment of the Donaees and Tellinae, is always on the shortest 

 side of the shell, but in the Veneres and Cy the re a?, it is on 

 the longest. The Donax has not the flexuous fold of the 

 Tellina. Journal o-f Science, vol. 14 y p. 307. 



* D. TRUNCULUS. Turt. Lin. Pen. Br. Zo., vol. 4, pi. 

 55, fig. 45. Mont. Test. Brit., vol. 1, p. 103. Flem. 

 Brit. An., p. 433. On some part of the coast this is rare ; 

 but it is found at Par in abundance. 



D. DENTICULATA. Turt. Lin. Pen. Brit. Zo., vol. 4, 

 pi. 55, fig. 46. Mont. Test. Brit., vol. 1, p. 104. Stew. 

 Elem., vol. 2, p. 378. Flem. Br. An., p. 433. This is 

 inserted on the authority of Da Costa ; neither Montagu 

 nor myself having ev<;r found a specimen. 



* D. COM PL A NAT A. Mont. Test. Brit., vol. 1, p. 10G. 

 Flem. Brit. An., p. 434. Rare. Montagu found it at 

 Falmouth and Looe ; and among a collection of small shells 



