294 JOURNAL OF CONCHOLOGY, VOL. II, NO. ID, APRIL, I906. 



of Colus Bolten, if the latter is otherwise vaUd. For this last, Murex 

 islandicus might serve as type, thereby preserving Fasciolaria Lamarck. 



It is an unfortunate fact that the abrogation of the original rule 

 requiring a diagnosis to validate a genus, will result in a nearly 

 complete obliteration of the Lamarckian systematic names among 

 moUusks. Nearly all of Lamarck's own genera of shells were antici- 

 pated by Bolten, who seems to have been, in spite of certain 

 infelicities in his system, far in advance of most of the conchologists 

 of his time, and as scientific as one could expect at a period when no 

 one knew much about the anatomy or precursors of the existent 

 mollusk-fauna, and people were compelled to base their classification 

 upon the shell-characters of a relatively small number of species. 



The changes that will ensue on the application of the rules of 

 nomenclature to the systematic names of Bolten and Lamarck are so 

 great that I have thought it well to add to this paper the following 

 list, in which in all the simpler cases the results are indicated. I have 

 not included the Linnean genera adopted by Bolten and in which no 

 change will occur, but only the new names introduced by Bolten, their 

 type (A), or first species (i), and their next subsequent equivalents 

 from Lamarck or his successors. When the equivalence is exact, the 

 prior name is preceded by an asterisk as an indication that it will 

 take precedence. In the other cases where the Boltenian genus is 

 heterogeneous, an indication of its contents is given, but this is not 

 complete except for the less complicated cases. The very complex 

 cases, which will require special study to unravel, are indicated by 

 a double dagger (:j:). 



Boltenian Name, 1798. Post Boltenian Name, Etc. 



*Sinum (haliotoideus Z.). Sigaretus Zaw., 1799. 



Albula (i. albumen Z.). *Natica Scopolt, 1777. 



*Cyphoma (A gibbosa Lam.). Ultimus Montfort, 1810. 



Volva (i. ovum G/nel.). *Ovula pars Bmguiere, 1789. 



Porphyria (i. porphyria Gmel.). *01iva Marty n, 1784. 



Cucullus (;;t'/ ^Z/V/w). *Conus Li'nne, 1758. 



:j: Pterygia ( I. glabella Gmel?). Persicula ScJmm., 181 7. 



*Morum (A oniscus Gmel.), Oniscia So7verby, 1825. 



*Galeodes (/. melongena Gmel.). Melongena Schnm., 181 7. 

 *Thais(i. Purpura neritoides Z^w.) Purpura Lam. ?ioit Marty n. 



*Drupa (i. horrida Lam.). Ricinella Schi/m., 181 7. 



*Vasum (i. capitellum Gfnel.). Turbinella pars Lam., 1799. 



|Volema (r. pyrum Gmel.). Turbinella pars Lam., 1799, etc. 



I'yra.mis (immature s//ells). *Stromhus Li'/ine, 1758. 



Plejona (i. hebrsea Li'n.). *Voluta (Z.), Scopoli, 1777. 



Lambis (i. Strombus pugilis Z.). Strombus pars Linne, 1758. 



