250 WORMS. TESTACEA. 6$. Area. 



Knurr. Vergn. L tab. 23. fig. 3. 



Martin. Befch. Vaturf. 3. tab. 6. fig, 1 4. 



Chemn. conch, 7. /«£. j'jL/ig. 524, 525. 



Inhabits the Indian Ocean and is extremely rare. 



5£r// white, fometimes with brownifh ipots or clouds, thrice as 

 broad as it is long; the infide ftriate, the outiide ftriate in 

 various directions ; valves diffimUar : margin crenate within, 

 and in younger fhells without alfo. 



B. Margin entire: beaks inflcRed. 



* Koai, Shell oblong ftriate and emarginate at the tip: beaks very 

 remote : margin gaping. Noah's Ark, 



»- 7/U;/^* < — Area tortuofa. Pennant Brit. Zoo/, iv. p. 97. 



Berlafe Nat. Hid. Cornwall tab, 2$. fig. 15, 16. 



Barbut< tab. 7. fig, 2. J^ifer, t. 368, 369. 



Rumpf. Muf. tab. 44. P. Gualt.test tab. 87. G,H, I. 



Adans.feneg. \. tab, .18. fig, 9. Lefjer test, fig, I 38. 



Bonan. recr. 2. fig. 32. 7k////. Kirch. 2. fig. 31. 



Petri, amb, tab. lj,fg. 10. Argenv. conch, tab. 23. G. 



Knorr. delic. fcl. tab. B. V.fg. 2, 



Knorr Vergn. 1. /V*£. 16. fg. 1,2. 



Begenf. conch. I • /#<£. 1 2. /g-. 73 



ra«w*. 7 ./^. 53.^. 529-531. /. 54./. 532, 533, 



2. Argennjille conch fait. 2g.Jtg.20. A 



Inhabits the Mediterranean Atlantic and American Seas. * 



Shell rhomboid, white, generally fpottcd clouded ftriate undulate 



or veined with brown cr yellow ; outer margin crenate, the 



inner entire. 



'Barbata. Shell oblong ftriate, bearded with byffus: beaks approx., 

 imate : margin clofed. 

 Lister Clinch, tab. 231. Knorr Vergn. 2. tab, 2. fg. 7. 

 Bonan. recr. 2,fg. 79. Muf. Kirch. 2. fig. 78. 

 Qj Ciualt test. tcb. 9. F. Argenv. Conch, tab, ^2. M» 

 Murray, testaceol. tab, 2. j g, 22. 

 Martin Befch, Naturf. 3. tab. 6.fg; 8. 

 Chemn. conch. j,tab t 54. fg, 535. 



2. Gualt. test. tab. 90. Hg. B. 

 Martin Befch, 3. ta£. 6,fg, \2, 

 Chemn. conch, 7. tal \ 54. ^, 534,* 



3. <S>£* M///; 3. /. 88./. 13. Muf. teff, t. 6,f\ u 

 Chemn, conch, 7. /. 54./ 536, 537. 



4. Rumpf, Muf, t. 44./. L. 



Inhabits European American and Indian Seas* 



Shell pale chelnut under the byflus, fometimes mixed with white, 



ajid marked with decuflate ftrise t the fibres in the angle of 



feclion are nodulous. 



Modiohu 



