212 . VII. DELINEATIONS 



The terms, employed in describing reliquia, 

 which derive their form from the external parts of 

 animals and plants, must be those used by Zoolo- 

 gists and Botanists of the Linnean school. 



Reliquia deriving their form from the internal 

 parts of organic bodies, must be described in such 

 terms as Anatomists would use in distinguishing 

 the same parts in the recent subjects. 



As appendant parts to the general description of 

 the reliquiuin, must be given 1. an enumeration 

 of the specimens which exhibit the various acciden- 

 tal forms under which the species has been foujid 

 2. an enumeration of the various substances which 

 have been observed constituting the reliquiunvand 

 its matrix. 



The constituent substance of a specimen may be 

 merely named, if its identity with some known mi- 

 neral species be determined. If not, it must be 

 described according to the principles of mineralogy. 

 ( v. Werner's External Characters |by Weaver 

 Jameson's Mineralogy. &c.) 



Order of the Delineation. 



1. Generic, Family, HELMINTHOLITHUS 



and Trivial Name. 



ECHINITES sinuatus. 



2. SPECIFIC HEL. Echin. clypeatus convexus, 

 CHARACTER. ambulacris striatis areisque de- 



