e M odioluse 
* Cygnus, 
* Anatinus 
WORMS, TESTACEA. 68. Mytilus. 293 
Shell fmooth blackifh, obtufe at the fmaller end and rounded 
at the other ; one fide angular near the beaks. 
Pennant. Brit. Zool. iv. tab. 66. fig. 77. 
Donovan s Brit. Sbelis. i. tab. 23. : 
Da Gojta Brit conch, t. 15. f. 5. Barbut, t, 131, f, 7. 
Mull. Zool. Dan. 1. tab, 52. f. 2—5, 
Lifter. t. 359 f. 198. Adans feneg. Y. t. 15. f. 1. 
"Argen. conch. tab. 22. C. Rumpf. Muf. tab. 46. B, C, D? 
Gualt. teft, tab. 91. H. Knorr Vergn, 4. fe 15. f. 5. 
Klein offr. t. 9. f.25- t. 131. f. 67. 
Chema. conch. 8. t. 85. f. 757—760. 
2. Lifer conch. t. 356. f. 194. 
Klein ofr. 12. tab. 78, 79. 
3, Lifer conch, tab, 1057. f. 5. 
Inhabits European American and Indian Seas, adhering to Fuci ahd 
Zoophytes: 6-7 inches long and nearly 3 broad. 
Sheil blueith under the fkin or with a mixture of white, fometimes 
white or yellowifh with red rays, or half chefnut and white: 
beaks tumid oblong; the front ftriate; hind-part prominent : 
hinge near the beaks: the fi/4 red or orange and eatabic. 
Shell ovate very. brittle and tranfverfely wrinkled: the an- 
terior end compreffed, the other rounded: hinge latera!. 
Pennant Brit. Zool. iv. tab. 67. fig. 78. 
Donovan's Brit. Shells. d. tab. $5. — 
Lifter conch, tab. 156, An, Angl. app. t. 2. f. 29, 
Gualt tef. tab. 7. F. Scbrat, blufc. tab. 5. fL te 
Argenville conch, t. tab. 24. fig. 5, [pore pe 
Chemn. conch. 8, tab. 85. f. 762. ; 
2. Radiate. Lifter conch. tab. 15$. f. 10. 
3. Lifter conch. tab. 1g0. f. 5? 
Found frequently in Rivers and Ponds; 2— 5 inches broad and 
nearly 3 long: jhell deep, covered with a greenith (kin, under 
which it is tranfverfely wrinkled, ochraceous or varied with 
bright brown and fometimes radiate : within white opake and 
often rough with {mall pearls: deaés minute retroverted and 
 connivent. 
Shell oval, a little compreffed, very brittle and feraitranf- 
parent, with a membranaccous margin: beaks decuy 
ticated, 
Pennant Brit, Zool. iv. tab. 68. fig. 79. 
Lifer. tab. 153. fig, 8. Klein ofr. t. 9. f. 26. 
Gualt. test. tab. 7. E. Schret. Flufe, tab, 1. fig. 2 5. 
Argenv, conch. 1. tab. 24. yig. 1, 2. Zoom. f. 8. f. 8—11. 
Petiv. Gaxoph, tab. 93. fig. 8, 9. 
Chemn. conch. 8. tab. 86. fig. 763. 
- Lister conch. tab. 154. fig. 9. —— 
- Lifter conch. tab. 150, fig. 61 
^ 
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