202 . VI. PRINCIPLES OF 



Names of the Families. 



These are either permanent or temporary The 

 former belong- to permanent, the latter to temporary 

 families, v. p. 187. 



The permanent may be formed from the syste- 

 matic names of the recent genera or orders, on 

 which the permanent families are founded, and the 

 termination ites. e. g. Echinus, Echinites Tro- 

 chus, Trochites Nautilus, Nautilites, &c. f. 



The temporary may be best formed ( when such 

 names are necessary) with a reference to the part 

 of the plant or animal from which the family re- 

 ceives its form. e. g. Rhizolithus, Carpolithus, 

 &c. 



Long established appellations,, expressive of a 

 resemblance between reliquia and the parts of plants, 

 animals, or other bodies, from which they have not, 

 however, actually received their form, may be 

 adopted, as temporary family names, but are not 

 to be imitated, e. g. Glossopetrte, Bufonitci, 

 Plectronitce, Mummularii, Lenticularii, &c. 

 Names of the Species. 



The name of a species properly consists of the 

 generic (i. e. name of the genus] and trivial name. 



t The latinity of some of the names, which will follow the appli- 

 cation of this rule, may be objected to ; but these barbarisms, as 

 they will perhaps be called, can scarcely be more exceptionable 

 than Witherites, Prehnites, Mellites, and other terms of like 

 formation, generally adopted in our present systems of Minera- 

 logy- 



