TOMLIN AND BOWSLL : VERTIGO MOULINSIANA. 213 



outline figures of the same three species. The plate was originally a 

 reproduction of sixteen beautiful photo-micrographs by our member, 

 Mr. J. W. Jackson, and brings out admirably the variation of V. 

 moulinsiana in point of size, form, outline of lip, and armature. 



In the Irish Naturalist this plate accompanies a most interesting 

 article by Mr. R. A. Phillips of Cork, in which the discovery of Vertigo 

 moulinsiana in Ireland is announced near the River Barrow, at 

 Tinnahinch, Co. Carlow. He found the species plentiful on Glyceria 

 aquatica L. and other marsh plants in October, 1907, and again, in 

 January of this year, on the branches of a small alder-tree, and in dead 

 leaves caught up in the forks, hibernating with Succinea putris. On 

 visiting the spot last June, Mr. Phillips found that these molluscs had 

 not yet begun to ascend the stems, but were feeding low down 

 amongst the grass, etc. He has also called our attention to another 

 point of distinction between this species and V. lilljeborgi which does 

 not so far seem to have been noted, viz. : the colour of the denticles. 

 In the latter species these are of the same colour as the shell, whereas 

 in V. moulinsiatia they are usually white. 



Three varieties have received names, viz. : — 



var. personata Moq.-Tand.^ " Coquille un peu plus allonge'e : 

 ouverture avec deux plis columellaires : peristome interrompu." 

 Toulouse (Partiot). 



var. ventrosa Heynemann.^ Very short oval and very tumid, 

 whorls 4 (the type having 4^ to 5), teeth — one or two on body (the 

 inner one small), two on columella (the lower one small), two inside 

 lip; size 2^ x 1-^ mm. (the type being 2|-2f x i^-if mm.). This is 

 the Carinthian form and was described as a species. 



var. octodentata West.^ Teeth 2-2-2, and in addition two tiny 

 denticles in the basal angle below the columella. An Italian form, 

 rather smaller and more conical. 



The following list of localities where it is known in a fossil state 

 has been very kindly furnished me by Mr. A. S. Kennard : — -The 

 Pleistocene of Copford and Clacton (Essex), Barnwell and Grant- 

 chester (Cambs.), and West Withering (Sussex) ; the Holocene of 

 Chignal St. James and Walthamstow (Essex), Westbury-on-Severn 

 (Gloster), and Knettishall (Suffolk) ; on the Continent, from the 

 Middle Pleistocene of Darmstadt, the Upper Pleistocene of Winds- 

 heim in Mittelfranken, and the Pleistocene of Oberalling, Bavaria 

 (Clessin).^ 



1 Hist. Nat. des Moll, de France, vol. 2, p. 403. 



2 Malak. Blatter, 1862, p. 11, pi. i, fig. 6-8. 



3 Faun. Eur. Moll. Extram., p. 195. 



4 Berichte des Nat. Vereins zu Regensburg, Heft xi. 



