TAYLOR: VARIATION OF LIMNiEA PEREGRA. 29I 



The original figures of this variety are given by Alder in 

 Ann. and Mag. Nat. Hist., Dec. 1848, p. 396. 



The specimen figured is one of several collected in Loch 

 Skene by Miss F. M. Hele, of Bristol, who has kindly given me 

 this and many other interesting varieties of our British shells. 



Var. obtusa Kobelt. Shell large, spire very small, whorls very convex 

 and increasing very rapidly in size, moulh 

 ample and almost attaining the summit of 

 the spire. 



This is a very interesting variety, 

 and from its inflated body-whorl might 

 easily be mistaken for Z. anricularia ; 

 an attentive examination and comi)ari- 

 son will, however, result in its true 

 afifinities being recognized. 



It may be considered as standing in the san:ie relation to 

 the var. ovata that the var. aiiipla holds to the typical Z. «■?/;-/- 

 ailaria. Its similitude to the last-narned species is strikingly 

 shown by the fact that Dr. Kobelt referred it successively to 

 Gulnaria anipla and G. 0%'ata. 



Herr Clessin has got somewhat confused in his treatment 

 of this form, as in the sanie book he treats of it on p. 534 as 

 a var. of Gtilnaria ampla, and on p. 541 again treats upon 

 it as a var. of G. ovata^ in each case giving the reference 

 to Kobelt's Icon., figure 1251. Ciessin's figures seem hardly 

 to be referable to this form, but would, I should imagine, be 

 more correctly placed with var. inflata. 



M. Bourguignat places this with some others named in this 

 paper in his group Auriculariana as being in his opinion more 

 closely related to that group than to Z. peregra. 



The specimen figured was collected by Mr. J. Madison, 

 of Birmingham, from a pond at Hall Green, Worcestershire, and 

 kindly given to me by him. 



The original figure by Kobelt is published in Mai. Bl., 

 1870, pi. ii., fig. 6, 



