l66 JOURNAL OF CONCHOLOGY. 



The county Donegal touches the county Leitrim about 

 two miles south of Bundoran. The latter county, however, 

 possesses only a very small slice of sea-coast, for after walking 

 in the same direction for another mile one enters the county 

 Sligo. One of my walks extended into the county Leitrim, 

 from which I believe no authenticated records have ever been 

 made as to the distribution of shells. 



In the river Drowes, which separates the two counties 

 (Donegal and Leitrim), I picked up the following among others : 

 Bythinia tentaculata, Planorbis contortus, P. complanatus, Limncea 

 peregra var. ampullacea (small), Sphcerium corneum (young), 

 and Pisidium pusillum^ near the banks (co. Leitrim) I found : — 

 Helix rotundata and var. turtoni, Claiisilia rugosa and some 

 sings,]!. kispida, H. conchifia, Pupa umbilicata, Vitrina pelliicida, 

 Zoftites alliarius, and Z. nitidis. 



Asslmlnea littorina at Weymouth. — Whilst col- 

 lecting at Weymouth last winter (1888) I turned up two 

 specimens of a shell which has since been identified as 

 Assiminea littoralis D.Ch. I then made a further search which 

 has resulted in the discovery of about one hundred live shells 

 of this species. My chief object in writing these notes is to 

 put on record the finding of about a dozen live albinos for 

 which I venture to propose a var. albida ; this is, as far as I can 

 discover, the first reported occurrence of the variety. A few 

 notes as to the habitat may be interesting. The shells were all 

 found under stones a little below high water mark. In com- 

 pany with them were Rissoa cingillus and var. riipestris, one 

 specimen of OdostoDiia pHcata, Melajnpus viyosotis, and var. 

 ringens, Melampus Mdentatus, and Lascea rubra var. pallida. 

 It is interesting to note the association of albinos in this one 

 very small spot ; there being two species of which white varieties 

 occur without the type, two white species, and two coloured 

 species of which white varieties occur with the type. A further 

 search in the same spot has yielded three live Truncatella 

 truncatiila.—Y.'^'^'E&x R. Sykes. 



J.C., vi., Jan., 1890. 



