PULMONATA. 175 



Var. 1. Black, shining. 



Var. 2. Lead-coloured or grey -black. — Ferussac, I. c. t. 6. f. 1, 2. 

 Hab. Europe : South of France ; Malta ; Spain ; Sicily. 



" Back carinated throughout ; shield granulated, olivaceous 

 black, with paler sides. Head bluish ; tentacles darker, parti- 

 cularly the superior, which are deep violet. Shield ample, 

 squarish, bilobed behind (being indented by the keel in the 

 centre), granulated, same colom- as the rest of the body. Ge- 

 neral colour very deep olive, or olivaceous black, becoming 

 lighter at the sides, so that the margin of the foot is very pale, 

 except near the tail, where it is darker - sole nearly white. Keel 

 extending the whole length of the back, sharply edged ; the edge 

 somewhat darker than the rest of the body. Mucus colourless, 

 abundant. Length rather less than 3 inches. When at rest 

 assumes a rounded form, the head, tentacles, and even a portion 

 of the foot being retracted beneath the shield. 



" Hab. Isle of Portland {Darbyshire) ; near Tenby, S. Wales." 



2. MiLAX SOVFERBII. B.M. 



Yellowish, tessellated with brown ; head, tentacles, back, and 

 dorsal keel yellow, sides i)ale. Shell oval, thickened and very 

 convex beneath. 



Limax Sowerbii, Fer.Tab. SystX. 96 E ; Hist. Moll. t. 8 D, f. 5, 6. 



Alder, Mag. Zool ^- Bot. ii. 105. 



Clark, Ann. S,- Mag. N. H. xii. 338. t. 12. f. 14, 15. 



Denson, Mag. Nat. Hist. vi. 694. 



Forbes ^ Hanley, Brit. Moll. iv. 22. t. E. E. E. f. 3. 

 Limax carinatus. Leach, MSS. ; Brit. Moll. 54. t. 8. f. 3. 



Alder, Mag. Zool. Sf Bot. ii. 105. 



Gray, Turt. Man. ed. 2. 116. t. 3. f. 17. 

 Limax marginatus, Drap. Hist. Moll. 124. t. 9. f. 7 (not M'uller). 



Fer. Tab. Syst. t. 96 E ; Hist. Moll. u. t. 8 D. f. 4 ? 

 Hab. Europe, England : France. 

 Perhaps a variety of M. Gagates. 



3. MiLAX VALENTIANUS. 



Brown (in spirits) ; back and shield with two pale broad- 

 edged black streaks; dorsal keel white; shield short, rather 

 truncated behind ; aperture of respiration posterior. 



Limax Valentianus, Ferussac, Tab. Syst. 21.t.96 E; Hist. Molt. 



ii. 2. t. 8A. f. 5, 6. 

 Hab. Spain ; Valencia, in gardens. 



