340 PETRIFACTIONS. 109. Helmintholithus. 



Ifgriti/eu The Nerita. 



In Piedmont, Sivitzer/and, Carinthia, Auftria, Germany, Sec, 

 generally in limeftone. 



auricularist The Haliotis or fea-ear. 



In Teme/ia and Belgium, i 



1. The Haliotis perverfa, 



Mar:in. n. Manmgf» 4, p. 404. tab. I. Jig, 3*, 



2, The Haliotis p'icata. 



Schrctt, einl. in l^erft. 4. p, 278. tah^ 3, Jig. 9. 



Tatellaria, The Patellaria or limpet. 



In various parts oi England ^ Sm:itzerland) and Italy ^ 



1. The Patellar'a faccharina. 

 Conchidium. MuJ. Te/sin, 90. tah. ^* fg. 8. 

 Common in various parts of Saveden. 



Dentalisi The Dentalium or tooth-fhell. 



In variou<: parts of Italy, Snjoitxerland, Germany, Bohemia, Sileda^ 

 and Saxony, in marble, jafper or chalcedony, 



|, The Dentalium Radula. 



2. The Dentalium interruptum, 



3. The Dentalium vitrcum. 

 All found in Piedmont, 



4. The Dentalium fexangulare. 

 Near Loretto in Italfm 



Tubulites* The Serpula, 



1, Straight or nearly (o. 

 In Germany and Belgium,, 



2. Flexttou*- or contorted, Vermiculites* 



In f^alta, Italy, Switzerland, Germany, Franconia, and Belgium,^ 

 in marble or fandftone, generally feated on oth^r petrified 

 Ihells. 



Z4 Tne Serpula Spirillum, 



Intheiflandof Sheppey and Wirtemburg. 



b. The Serpul.i filog;rana. 



Near Halam in Magdeburg, rare. 



C. The Serpula glomerata,' 

 In SileJia and Siuitxerland, 



