* Declivis, 
* dfrenariag., 
* Pifforum. 
WORMS. TESTACEA. 56. Mya. 175 
Cualt. Teft. tab. g1. fig. D. 
Chemn. conch. 6. tab. V. fig. 1, 2. 
2. Liker conch. tab. 429, fige 270. 
Inhabits European {eas; 2% inches long. 
Shell dirty-white covered with a yellowifh-brown fkin, thick, 
convex, with irregular traníverfe ftris. forming wrinkles, 
within quite fmooth: the fifa is frequently eaten, and is a 
principal food of fea birds. 
Shell brittle, femitranfparent, floping downwards near the 
open end ; the hinge flight!y prominent. 
Found about the Hebrides. Brit. Zool. iv. p. 79. 
Shell lefs gaping than the laft: /:/& in great efteem as a food 
among the inbabitants, 
Shell ovate, rounded behind: tooth projecting forwards, 
rounded and furnifhed with a lateral fmaller one. 
Pennant Brit. Zool. iv. f. 79, tab. 426 
Lifter conch. tab, 418, fig. 262. 
Bafler op. fubf. 2. p. 69. tab. 7, fig. 1—3. 
Argenv. Loom. tab. $, f. Vo. — Leffer test. fig. 106. 
Born Muf. Cas. Vind. test. tab. 7, fig. Ac 
Chemn. conch. 6. Vign. et tab. 1, fig. 35 4» 
2. Lister conch. tab. 419, fig. 263. 
Inhabits European feas, under the fand; 22 inches long; yellows 
ifh reddifh-brown or dirty-white : /he// marked with tranfverfe 
wrinkled ftriz: tooth of the hinge longer and more obtyfe 
than that of M, truncata, 
b! 
Shell ovate; with a fingle longitudinal crenulate tooth in 
one hinge, and 2 in the other. 
Pennant Brit. Zool. tv. p. 29. tah. 43, fig. 17* 
Lister conch. tab. 146, fig. 1. tab. 147. f. 2, 3- 
List. An. Ang. tab. 2, f. 30. App. tab, 1, f. 4. 
Gualt. Test. tab.7, f. E. Barbut, tab. 2, f. 1. 
Argenville comb. tab. 27, fig. 10, Zoom. t. 8, f. 11, 
Schrat. Flufconch, tab. 2, f. 2. tab. 3, f. 2—5. 
Chemn. conch, 6, tab. 1, fig. 6. 
- Chemn. conch. 6. tab. 3, fig. 23, 24. 
. Lift. conch. tab. 148. 
. Argenville conch- tab. 29, fig. 18, 
Schraet. Flufconch. tab. 3, fig. 5. 
Schrat. Flufconcb. tab. 9, figs Y. 
Ao Pes 
inhabits 
