24 



BRITTSH MOLLUSKS. 



whose figure our wood-engraving is a copy reduced to the natural 

 size. This is all that is known in England of the slug ascribed to 

 Muller's Limax tenellus. It has been observed, according to Ferus- 

 sac, in the South of France, at Quercy, and in the neighbourhood of 

 Montpellier ; but nothing has been added to that observation, and 

 Limax tenellus is included by Moquin-Tandon, along with L. brun- 

 nens in his list of ' Uncertain Species.' 



7. Limax flavus. Yellow Limax. 



Animal ; body cylindrically elongated, rounded on the back, keeled 

 towards the tail, yellowish, speckled with grey, wrinkled and 

 furrowed ; head rather small, bluish, tentacles rather short ; 

 shield oblong-ovate, rounded at the extremities, concentrically 

 striately wrinkled, ash-grey, variegated in concentric order 

 with yellow spots, respiratory orifice posterior to central. 



Shell ; somewhat squarely ovate, sbghtly concave, striated concen- 

 trically from an umbonal nucleus. 



Limax flavus, Linnaeus (1758), Si/st. Nat. 10th edit. p. 652. 



Limax variegatits, Drapamaud (1801), Tall. Moll. p. 103. 



Limacella unguicula, Brard (1815), Hist. Coq.Tp. 115. pi. 4. f. 3, 4, 11. 



Hab. Europe, Syria, Madeira (in caves and damp places in woods, and 

 about houses in cellars and wells). 



The ordinary colouring of this moderately keeled and strikingly 

 marked species is a dull yellow, variegated on the back with ash 

 grey, so as to leave a copious sprinkling of yellow dots and spots. 

 On the shield the spots range in the concentric order of the strise, 

 and present a characteristic feature by which the species may be 

 readily recognized. In habit L. variegatus inclines rather to damp 

 situations about houses, in cellars and wells, and in woods ; it pre- 

 fers to dwell on the damp ground or in caves. 



