450 WORMS. TESTACEA. 74. Bulla. 
Noucum. Shell rounded pellucid, flightly ftriate tranfverfely and per- 
forated at each end. 
Lifter. tab. 714. fg. 73. Rumpf. Myf. tab. 27. H. 
Bonan. recr. and Muf. Kirch. 5. fífg- 4. 
Gualt. téft. 12b. 13. GG. Argenv. conch. tab. 13. Q 
Seba muf. 3. tab. 38. fig. 2, 3. 
Knorr. Vergn. 6. tab. 38. fig. 2,3. 
Martin. conch. 6. tab. 38. fig. 2, 3. 
Martini conch. 1. tab. 22. fig. 200, 201, 
Inhabits the 4fzcan and Indian Seas: an inch long. 
Shell chin, fometimes glabrous on the middle of the back, 
* Aserta. Shell roundith pellucid, tranfverfely fubftriate, one end much 
produced: the apertures very open, 
Gualt. teit. tab, 13. fg. E E. 
Martini conch. 1. p. 266 .vign. 13. fig. 3. 
Schrat, Einl in conch. t. tab. 1. Jig. 8. a, b. 
Favann. conch, tab. 27. F. 7. 
Chemn. conch. Yo. tab. 146. fig. 13545 1355. 
B. patula. Brit. Zool. iv. p. 117. tab, 70. fig. 85, A. 
Da Cojia Brit; conch. tab. 2. fig. 3. 
Inhabits Europe and Africa. Shell {mall, one end much produced 
gad tufiform 3 the lower-lip very much fpread out. 
fydatis,. Shell rounded pellucid and flightly ftriate longitudinally : 
crown umbilicate. 
Gualt, test. tab, 13° fig. DD, 
Chenin. conch, G. tab, 118. figs 1010, ; 
Inhabits the Mediterranean; about the fize of a {mall pea, and 
refembles the lait. 
* Ampulla. Shell rounded, obtufe at one end: crown umbilicate, 
Lifter. tab. 713, 714. fig. 72+ 715 fig. 74- 
Rumpf. Muf. tab. 27. G. Leffer test: fig, 51. 
Pet. Gaz, tab, 50. fig. 13. te 99. f. 146 
Grew muf. tab. 9. fig. 7, 8. 
Gualt test. tab. 12. E, F, T. 
Murray west. tab. X. fig. 9. 
‘Seba muf. 3. tab. 38. fig. 54—44 
Knorr Vergn. 2. tab. 8. fig. 1--5. f. 17. fi Ov 
Martini conch. 1. tab. 21. fig. 188--193- t 22. J. 202--204. 
Inhabits:moft fea Coafts; 2--3 inches long. 
Shell white marked with various fhades and {pots of red brown and 
blue, with fometimes flexuous black or grey lines; the inner 
, fide lapping over the pillar fo as to render it invifible. 
* Lignaria. 
