508 CONCLUSION. 



Marine testaceous Acephala 152 



Marine Gasteropoda 205 



357 

 Deduct the doubtful species . . 21 



Net amount 336 ; 



of which I have described nearly two-thirds, a number far 

 exceeding those recorded in works on this branch of zoology. 

 I trust that some energetic naturalists will complete the tale ; 

 a noble harvest and much fame await them. Many species 

 are wanted from Caledonia : as a Southron, I invoke the men 

 of the North to supply them. Let a description of every 

 desideratum be instantly committed to our ' Annals/ and we 

 shall soon show the continental savans that we have profited 

 by their example, and convince them that we have wiped 

 away the opprobrium cast on us, of being mere shell-gatherers, 

 instead of observers of the living elements of nature. These 

 pages will prove how greatly the sphere of any branch of 

 zoology may be enlarged by every votary of the science doing 

 his duty in his particular locality. 



Some conchologists, with the aid of a hundred and twenty 

 land and freshwater species, the exotics, and British pseudo- 

 species, have raised our list to eight hundred, and even a 

 thousand ; but I think it will be long before our reformed roll 

 will, with the land and freshwater species, amount to five 

 hundred. I add an alphabetical list of the exotic species 

 which have so long choked up our indigena, and refer the 

 collector for more extended information to the excellent notes 

 of the learned authors of the ' British Mollusca' on the spu- 

 rious species that have been foisted on this branch of science 

 by negligent and over-zealous observers, who have been mis- 

 led by hearsays, and have not sufficiently allowed for the 

 exaggerations of common report, forgetting the aphorism of 

 the Mantuan bard 



" Vires acquirit eundo." 



