208 MESSRS. A. S. KENNARD AND B. B. WOODWARD ON THE 



Linne's cited figure for his grisea in Grualtieri (Index Test. Conch.pl. i. f. C) 

 so inscribed in his own copy of that work, is obviously a pomatia, whilst the 

 next figure on the plate (E) which represents II. aspersa, has not been 

 marked by Linne, who also when citing correctly for pomatia " Argenv. 

 t. 32. f . 1/' omits all reference to f. 2 & 3 which are good figures of aspersa. 

 We think, therefore, that he was unacquainted with the later shell. As 

 already mentioned, among the examples of aspersa in the collection is one 

 with the remains of a label (Linne always wrote numbers on his specimens), 

 and it seems possible that some if not most of these specimens were received 

 from Miiller. 



Helix pomatia (3). 



This is another of those species concerning which there has never been any 

 question, the figures instanced leaving no room for doubt. 



*Helix nemoralis (26). 



Hanley, we consider, was quite correct in his decision that Linne's species 

 was that which now passes under the name. The reference to " Lister 

 conch, no. 54,'' where the figures are unmistakable, is correct in the 10th 

 edition of the ' Systema ' ; but by error the number has been altered in the 

 12th edition to "53," though this is corrected by Gmelin in his edition. 



Westerlund's contention (Fauna Svecise, i. 1873, p. 101), that the //. nemo- 

 ralis, L., is the H. hortensis, Mull., because the latter form alone he states 

 is met with in Oliind, where Linne appears to have first observed banded 

 snails of this description (Olandska Resa, 1745, p. 127), seems to us beside 

 the mark. Linne's name anyhow dates from the 10th edition of the 

 'Systema' (p. 773), where the extended habitat of " Europse " is given, 

 but furthermore Linne in the ' Olandska Resa ' cites " Petiv : mus. 5. n. 14" 

 and the latter quotes the figures in Lister's 'Hist. Conch.' i. no. 54, which 

 as already noted are unmistakably II. nemoralis. 



That Linne did not discriminate between nemoralis and hortensis is pro- 

 bable, but this was rectified by Midler, from whom possibly some of the 

 specimens in the collection may have come. 



*Helix leucas. 



Hanley records (p. 361) finding in a paper certain specimens of immature 

 Helix pisana, Midi., which in his opinion coincided with Linne's description 

 of his II. leucas and which he thought were in all probability the originals. 

 Two adult and seven immature individuals of II. pisana, Midi., are present 

 in the collection to-day but no trace of the paper in wdiich according to Hanley 

 some of the latter were preserved. These specimens may have come from 

 Miiller. Linne's diagnosis is not sufficiently clear to enable definite pro- 

 nouncement to be made, and the name cannot, therefore, well be revived in 



