238 THE DISPERSAL OF SHELLS. 



also mentioned the creature's supposed importation by 

 Mr. Howard ; and they referred to its presence in the 

 additional counties of Wiltshire and Kent. In 1817, 

 Dlllwyn gave England as one of the habitats of this 

 snail, but without any statement as to its introduction ; 

 and Turton, in his " Conchologlcal Dictionary of the 

 British Islands," in 1 8 19, gave the ^'edible snail-shell," 

 along with the other species of the genus, presumably as a 

 native, making no statement as to whether it was to be 

 regarded as indigenous or imported ; but, even in 1830, 

 we find the statements both as to Sir K. Digby and Mr. 

 Howard again repeated, this time by Dr. George John- 

 ston, and they have been further repeated no doubt 

 by other writers. Fleming, in 1828, was probably in- 

 clined to consider the animal as an indigene, but he 

 made no direct statement to this effect, simply observing 

 that some had conjectured that the species was intro- 

 duced into England by Mr. Howard about the middle 

 of the sixteenth century ; it is noteworthy, however, 

 that he did not give it as a " naturalized species," like 

 B. goodallii^ nor as a " straggler " like D. polymorpJia. 

 Turton seems to have been the first to publish an ex- 

 press opinion that H. pomatia was in all probability a 

 native species, which he did, in his " Manual,'^ In 1831, 

 remarking that at one period the animals appeared to 

 have been admitted at our own tables, *^ as Lister in 

 his *HistorIae Animalium Angllae/ p. in, tells us the 

 manner in which they were cooked in his time,'"' 

 and Ben Jonson, In " Every man in his Humour," men- 

 tions the dish as a delicacy — ^'neither have I dressed 



