Dr. Maton’s and Mr. Racxett’s 
. Testa orbicularis, convexa, crassa, margine acuto, striata transversim striis 
obsoletis, vix manifestis, maculata maculis flavescentibus, fere fascia- 
tis. Intus alba excavata. | Umbones distantes, inter quas Rima hians, 
acutissima, minime striata. Cardo dentibus circiter 10 transversis. 
- (Linn. Mus. Lud. Ulr. p. 521.)—Testa diametro ad 24 poll. 
Mr. Sowerby first ascertained this species to be 
British. He found it on the coast of Cornwall. It is 
S: 
pilosa. 
t. 3. f. 4. 
not uncommon on the shores of Guernsey. 
A. testa suborbiculata, sequilatera, pilosa, umbonibus 
incurvis, margine crenato. Linn. Syst. Nat. p. 1143. 
n. 182. Linn. Gmel. p. 3314. 
Lister Conch. t. 247. f. 82. 
Petiver Gaz. t. 19. f. T. 
Gualt. Test. t. 13. f. A. 
Knorr Veron. 2. t. 23. f. 6 ; 4 t. 12. f. 4. 
Pennant Brit. Zool. 4. t. 58. f. 58. A. Glycymeris. 
Da Costa Brit. Conch. Bs 168. t. 11. f. 2. Glycymeris 
orbicularis. - 
Born Mus. t. Efi. a.b = 
Chemn. Conch. 7. t. 57. f. 565. 566. 
Encyclop. Method. t. 310. f. 2. 
Pulteney in Hutch. Dorset. p. 35. t. 11. f. 2. 
Donovan Brit. Shells, t. 31. A. Glycymeris. 
Montagu Test. Brit. p. 136. 
Halitat in mari. | | 
Testa diametro ad 24 poll. crassa, ponderosa, solida, fere orbicularis, albida, 
lineis angulatis castanei coloris, maculata, longitudinaliter manifeste 
transversim leviter striata, epidermide villosa holosericea tecta. Intus 
alba, interdum fusco-castanea. Margo crenatus. Cardinis dentes 
- obliqui, seu ad centrum tendentes. - 
“ Testa simillima 4. Glycymeri, sed testa perfecte regulon, A. Glycy- 
meris vero parum irregularis.” (Linn.) 
For 
