LIMAX. 83 



tail, in the position of the shield, which is nearly 

 central when the animal is fully extended, and in 

 the size of the shield, which is as long as the pos- 

 terior half of the body ; nor is there any keel on 

 this part. 



21. 6. LIMAX tenellus. Yellow; back rounded, 

 compressed near the tail ; shield with fine con- 

 centric wrinkles, rounded behind. Mucus 

 orange coloured. 



Limax tenellus. Mutter, Verm. ii. 11.; Nllson^ Moll. Suec. 

 10. ; Alder, Cat. Moll. North, 31. ; Forbes and Hanley, B. M. 

 iv. 21. t. F F F. f. 3. Arion tenellus. Ray and Drouet, 

 Moll. Champ. 



Woods, Northumberland. (Mr. Blacklock.) 



c. Back keeled from the mantle ; mantle granulated, 

 shorty truncated, and notched behind, with two small 

 pores on its hinder edge ; shell oval, thick, convex 

 beneath. (Milax, or Amalia). 



22. 7. LIMAX Sowerbii. Keeled Slug. Yellowish, 



tessellated with brown ; head and tentacles 

 black; mantle granulated and with a furrow 

 near its margin ; the ridge or keel of the back 

 very obvious, and of an amber colour ; the sides 

 pale ; shell oval, often thickened, and very con- 

 vex beneath, (t. 3. f. 15.) 



Limax Sowerbii. Ferussac, Hist. Moll. t. 8. D. f. 7, 8. ; 

 Demon, London's Mag. N. Hist. vi. 694. f. 120. a. b. ; Alder, 

 M. Z. Sr B. ii. 105. ; Clark, Ann. and Mag. N. H. xvi. 339. 

 t. 12. f. 14, 15.; Alder, Cat, North. 31.; Forbes and Hanley, 

 B. M. iv. 22. t. E E E. f. 3. Limax carinatus. Leach, 

 Syn. Moll. 54. t. 8. f. 3. ; Turton, Man. ed. 1. n. 15. ; Alder, 

 M. Z. fr B. ii. 105. ; Thompson, Ann. N. Hist. vi. 208. 



G 2 



