LIMAX. 79 



inside, which is sometines sprinkled with minute 

 crystal-like shining particles, a little convex and 

 transversely wrinkled on the outside ; with the edges 

 membranaceous ; on the top, or broader extremity, 

 is a small central prominence, or apophysis of ad- 

 hesion, by which it is attached to the animal ; the 

 lower extremity very thin and rounded. 



When irritated, they dilate their shields. Their 

 eggs are white, and deposited in spring under stones 

 &c. 



These animals (especially the larger slug) are often 

 infested with mites, which were discovered by 

 Reaumur, in the Mem. Acad, des Sciences, 1710, 

 and called by Gmelin Acarus Limacum. They 

 have been well described, with some interestins: de- 

 tails of their habits, by Mr. Jenyns, under the name 

 of Philodromus Limacum, in the Mag. Nat. Hist. iv. 

 538. f. 109. 



b. Back rounded ; tail keeled ; shield short, not pro- 

 duced behind, with a single order of concentric stria ; 

 respiratory hole subcentral or posterior. (Eulimax.) 



17. 2. IjUiais. Jlavus. Yellow Slug. — Yellowish, 

 tessellated with brown ; tentacles bluish ; the 

 hinder part of the mantle rounded ; shell thin, 

 concave, mammillated externally at its posterior 

 extremity, (t. 3. f. 15.) 



LImax flavus. Linn. Fauna Suec, 363. ; Nilson, Moll. Suec. 

 5.; Clark., Ann. and Mag. N. H. xii. 338. t. 11. f. 11, 12.; 

 Forbes and Hanley, B.M. iv. 19. t. E. E. E. f. 1. — Liniax 

 variegatus. Drop. Hist. Moll. 127. ; Fer. Prod 21 , Hist. 

 71. t. 6. f. 1—6.: Nwmeley, 1. c. 47. t. 1. f. 3. ; Leach, Syn. 

 Moll. 52. — Yellow slug. Penn, Brit. Zool. iv. 41., from 



