|. 46 
antiqua- 
Dr. Maton’s and Mr. RACKETT'S 
arne, Caermarthenshire, by the Rev. T. Rackett; 
and plentifully in Biddeford Bay, Devon, by Mr. 
Montagu. | 
S. testa ovali-oblon ga utrinque rotundata, cardine medio 
nunc unidentato nunc bidentato. . 
Adans. Seneg. t. 19. f. 3. 
Pennant Brit. Zool. À. t. 46. f. 25. 
Da Costa Brit. Conch. p. 238. 
Schroter Flussconch. t. 9. f. 1T. 
Chemn. Conch. 6. t.6. f. 45? 
Linn. Gmel. p. 3227. S. coarctatus? 
Pult. in Hutch. Dorset. p. 28. t. 4. f. 5. ibid. S. fragilis. 
Donovan Brit. Shells, t. 114. 
. Montagu Test. Brit. p. 52. & p. 5l. Solen fragilis. 
Habitat in in mari. 
Testa 1 poll. longa, 2 lata, tenuis, sübpellucida, aids; sub epidermide fla- 
vescente-brunnea, levissime transversaliter substriata, a cardine ad 
marginem paululum depressa. Cardo ad medium teste. Valvula 
altera dente unico subulato, altera dentibus duobus dissimilibus 
recurvis. 
First noticed by Pennant, who mistook it for Solen 
Cultellus of Linnzus. Perhaps it is Solen coarctatus of 
Gmelin, but of this we are doubtful. Recent observa- 
2 tions of Mr. Montagu have. determined Solen fragilis 
ibed by Dr. Pulteney to be Solen cognati in a 
^ Neymouth={ (Pen dani) ty Mr. Bry er. Re- 
~~ ceived from the. Hampshire coast by Da Costa. Mr. 
-Montagu has obtained it at Looe, i in Cornwall. 
8. vespertinus. 
