508 CONCLUSION. 
Marine testaceous Acephala........ 152 
Marine Gasteropoday.< (+. use sien ee 205 
357 
Deduct the doubtful species. . 21 
Net amount (S722 2 28: Ge 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 livmg 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.”’ 
