33 ^ 
PETRIFACTIONS. 109. Hclmiathoiithus. 
Conim 
Porttllam~ 
Us, 
BulliteS', 
2. Elongated and more or Icfs ftraight. 
a. The Nautilus Lituus. 1 
In S’weden, Honstandy, Bshesstia, Italy, Sec. in limeltone. 
b. The Nautilus OrthoceMS, 
Helminth, nautili orf^oc. rat xii. %. p, 162. ». 2« 
Alveolus. Scheueb. dilu'v 938. T- f. 8. 
Tubulus concameratus. Klein 7 ubul y tab. 
Found folituy or aggregate, detached or fixed, in Englanit 
France, S’iveden, Siberia, Germ my, Bohemia, &c. in limC' 
Hone, fpar, marble, iitiditonc, or other minerals. 
e. The Nautilus Bclemnita, thunderbolt, thustderftnu. 
Helmintholithus Alcyoni. Syst. nat, xii. 3. 170. n. 22. 
Tubulus marinus. Klein, gedan. i "73 1.4 r. 7, 8, 9, 
Belemnites, Humph, mu/, tab. 50. fig. i — J. 
Belemnites, Breyn polythal. 41. /■. l 7. 
Belemnites. Ge/n.fig.<)l. Erhatt difs 1727. 4, /I *• 
Very frequent in many parts of Engl nd, particularly ifl 
Glocefier/hire and Oxfcrdjhire, and in moft mountainous parts 
of Ewope: they are more or lefsopake or tranfparent. ftraight 
or a little bowed, cylindrical, conic, more or lefs clavate# 
fufifoi-ra, a little c mprelTed, pointed or rather obtufea 
with a groove or two towards the tip, internally hollow or 
filled up, from a quarter of an inch to 8 inches long: co* 
lour whitifli, amber colour, grey, brownilh or blackiih : 
they are often inclofed in or adhere to other Rones, and are 
compofed of feveral crufts enc rciing each other, and arc 
moft frequent in chalk, gravel or clay i when burnt o( 
feraped with a knife, they give out an odour like rafped 
horn. The country pe pie h v a notion that they are al- 
to be found after a thurder-ftorm. 
The Conus. ^ 
In Piedmont, SmitzerlanjI, and Tran/ylvania, moft commonly * 
marble nucleus. 
The Cypraea or Cowrie. 
In Piedmont and Auftria, marmoreons. 
The Bulla. 
Near Nothberg in Germany. 
V 
