Descriptive Catalogue of the British Testacea. 13 
_tundato, antico subangulato. Cardinis dens solitarius inseritur in fo- 
veolam alterius teste, cujus dentes marginales obsoleti. 
First discovered at Sandwich in Kent, by Mr. Boys ; 
found in Salcombe and Biddeford Bays, Devonshire, 
by Mr. Montagu. 
Called Mactra Boysti by Mr. Montagu, as a tribute 
of respect to that ingenious and indefatigable natu- 
ralist, the late W. Boys, Esq. of Sandwich. 
ll r 
lutraria, M. testa bial oblonga levi, dentibus lateralibus nullis. 
— Linn. Fauna Suecica, n. 2128. Syst. Nat. p. 1126, 
n. 101. Linn. Gmel. p. 3259. | 
Lister Anim. Angl. t. 4. f. 19. — Conch. t. 415. f. 259. 
Pennant Brit. Zool. 4, t. 52. f. 44. bene. 
Chemn. Conch. 6. t. 24. Jf: 240, ME UT 
Ee Method. t.258. .8. — 
: Pulteney in Hutch. Dorset. p. 32. t. 5. f. 11. 
Wood in Act. Soc. Linn. 6. t. 16. f. 8, 4. 
Donovan Brit. Shells, t. 58. 
Montagu Test. Brit. p. 100. — | 
.8 oblongata. Chemn. Conch. 6. t. 24. K 238, 3, 299: P 
. Habitat ad littora, sub. arena. 
Testa ad 24 poll. longa, et 5 lata, sub epidermide fuscá, lutescente-alba, 
oblongo-ovalis, crassiuscula, vix transversim striata, utraque extremi- 
tate ecran dehiscens. . Cardo. extus umbonibus minutis, intus singulee 
sum versa, concava; in al- 
la erecta, complicata, cui in 
.. opposita testa respondet s squam: erecta, plana. ied Mus. Lud. Ulr. 
- p.470.) UM 
First Sk ribad and figured by Lister. Not t uncom- 
mon near the mouths of rivers. - 
| YOL. VIII. E : T o Rn am 
