226 Some of the Habits of 



game fowl, or that of the eggs of some fowls of the Bantam 

 breed. They are not elastic, but have, like the eggs of the 

 common fowl, a regular shell of lime, which effervesces 

 strongly in acids. These eggs, if taken from the ground, 

 and cleaned and brought into the warmer atmosphere of a 

 room, will, in a few minutes, burst with a loud crack, and 

 disperse their shell and contents to a considerable distance. 

 Whilst I have been writing these remarks, one of the Testa- 

 celli before me has, in the space of twenty minutes, laid two 

 eggs (fg. 39. d), I sketch the animal as it presented itself 

 while engaged in the operation, during which the head and 

 tentacula were drawn in, to the degree shown in c. 



The mildness of the climate of Guernsey during the winter 

 is, doubtless, the cause of the Testacellus being to be found at 

 this period of the year. I should, however, state that those 

 which I found in 1801 were, as in the cases remarked in VI. 

 43. and 45., usually in the neighbourhood of a green-house. 



Guernsey, Jan, 18. 1833. 



[Of Testacellus scutulum Sowerby, Mr.Thomas Blair, Stam- 

 ford Hill (VI. 43.)j obligingly sent me, on March 21. 1834, 

 a supply of specimens ; nine living individuals, one dead 

 one, and five eggs. These I carefully compared with the 

 characteristics of the Guernsey Testacellus, as noted in Mr. 

 Lukis's description, and shown in his admirable drawing. I 

 could not perceive any mentionable difference between them, 

 except that in the Stamford Hill animals the lateral furrow 

 was less obvious, though still perceptible, than Mr. Lukis's 

 drawing represents it to be in the Guernsey ones. I placed 

 one of the eggs close beside the fire : it exploded, just as Mr. 

 Lukis's had done. Most, or each, of the slugs themselves, 

 exhibited, as it were, three pairs of tentacula, but I think that 

 the pair produced by the protrusion of the corners of the lip 

 were scarcely so long as the pair above them. 



On holding one or more of the slugs by the body, between 

 my finger and thumb, I felt and saw my flesh struck with 

 some white organ projected from the mouth of the slug. 

 This, and a recollection of the worm-eating (vermivorous) 

 habits of this species, instigated me to capture a smallish 

 earthworm, and place it against the mouth of first one slug, 

 then another. One endeavoured to take it, and its first 

 act in the effort was darting out the organ I have mentioned, 

 affixing it to the worm, and drawing the worm into its mouth. 

 The worm, by its writhing, twisted itself out again, and this 

 more than once, during the (about six) times which I, in the 



