LIMAX MAXIMUS. on 
> 
crevice or chink in which it has established itself; as shown by their slime- 
tracks, these animals in the course of their peregrinations often form a loop 
Fic. 56.—Mucus-track, twenty feet or more in length, of Lémaa maximus I,., observed by Mr. L. E. 
Adams, upon the boundary wall of the Churchyard, Clifton, Derbyshire, July 8, 1898, illustrating the 
homing propensity. 
or figure of 8, the return track crossing the outward one at some point, 
usually near to the chosen home. 
The oLracrory sense is strongly developed in the Limaces, the keen per- 
ception of Limuer maximus being established by the well- known experiment 
of Moquin-andon.' Striking confirmation of this acuteness of their olfac- 
tory faculty is related by Mr. L. HE. Adams, who, about ten o'clock, one dark, 
windy, and wet evening in August, 1897, at Clifton, Derbyshire, saw a Limar 
marinus crawling directly towards a plate upon the lawn, containing the 
remains of the dog’s dinner; when first observed the slug was about six 
ane 
1ST Position © 
OF Plate EAeRE sor 
2rrection 
of Wiad. 
©" 
Fic. 67.— Diagram of the route traversed by Limax marines |.., in following the changes 
of position of a plate of food, as observed by Mr. L. E. Adams, at Clifton, Derbyshire. 
feet distant from the plate, but within thirty minutes had reached it ; the 
plate was then moved to a second position, about six feet away, but in 
another cirection ; the slug almost immediately changed its course, and 
1 Monog. i., p. 229. 
