310 Worms, testacea. 72 . Con us . 



Behmnita Shell equal fmooth conic acute. Thunder-ftonti 



Found in a foffile ftate in moft parts of Europe, they have received 



their cnglifh name from a notion that they are thunder bolts 



and always found after a ftorm. 

 Shell varying in iize, from £ an inch to 8 inches, conical, 



little tranfparent, and when burnt or rubbed fmelline like 



rafped horn. 6 



72. CONUS. Animal a Tuimax : Jfiell uniJ 

 valve, convolute, turbinate : aperture efM 

 fufe, longitudinal, linear, without teeth, 

 entire at the bale; pillar fmooth. Con A 



A. Spire tsr turban nearly truncate. 



M&rmreus. Shell conic brown, with ovate fubangular white fpotsil 

 whorls of the fpire caniculate. 

 Natural. Mifcellany. tab* 211. Lister conch, tab. 787. 

 Olear. Muf tab. $\.fig. 2. Gualt. left. tab. 22. D. 

 Muf. Gottivald. tab. 14 fig. 104. a. 

 Bonanrecr. and Muf. Kirch.. 3. tig. 123. 

 Rump/. Muf. tab. 32. N. Argenv. conch . tab. 12. M. O. 

 Vaknt.abh. tab. 3. fig. 25. /. 5./. 43. /. f.f. 65. A, 

 Petiv. Ga^cph. tab, ^j^fig. u. 



Seba Muf. 3. tab if*. fig. 1—4. I 3 — 19. /. 47./. 1 — 4. 

 Knorr. Vergn. I. ta£. 7. /£, 4. /. 15./'. 2. 

 Kegevf. conch. 1 , tab $.fig. 53. 

 Martin conch. 2. /a£. 62. fig. 685, 686. 



2. Valent. abh, tab. 2. /f*. 10. /. 5. Z'. 44, 

 . Knorr Vergn, I. /#£. 7. /^. 4, 



Martin, conch. 2. tafl. 62. fig. 687,688. 



3. Chemn. conch. 10. /^. 1 l%.fig. Hyo,. 



4. Chemn. conch 10. /*£. 139. fig. 1292.- 



Inliabits the American Ocean. Shell very finely flriate, fometimes 

 blackifh or fulvous ; the fpots often nearly triangular and run- 

 ning into bands; whorls emarginate and armed with fpinous 

 tubercles. 



zrialis. Shell whitifh with longitudinal livid bands and divided 

 brown and white linear belts. 

 Rimpf. Muf. tab. 34. H, I. Lister conch, tab. y66. 

 <ff Argenv. conch, tab. '?6&.fig.Jcg. Gualt. ted. tab, 22. A, 

 Vulent. abh, tab. 23. fig. 6. Klein cflr. t. 4. f. Za. 

 Seba Muf. 3. tab. Aq.fig. 18 — 21. 

 Knorr. Ko'gn. 2. tab. I I. fig. 2. 

 Regetf. conch. I. tab. $-f'ig. 35. 



Midi ail 



