28 Post- Pliocene Deposits of the St. Laivrence. 



3. Polymorphina lactea (Figs. 2, 3, also pnper in Canad. Nat 

 vol 2). This is perhaps the second species in relative importance 

 though much less plentiful than Polystomella umbilicatula. The 

 greater number of the specimens belong to the variety "typica" 

 of Williamson (F<g. 2). Others appear to be an exaggerated 

 form of the variety " oblonga* (Fig. 3), and many others, espe- 

 cially the smaller examples, are of the variety li communis.''' 1 A 

 similar range of vari ties exists in the modern specimens from 

 Gaspe. Size -fa to T \. 



Localities. — Logan's farm ; Tanneries; recent in Gaspe. 



Fig. 2 Fig. 3. 



4. M'diolina seminulum (Lin.) — (For figure, see paper in Can^ 

 Nat. Vol. 2, Fig. 18.) In my paper of last year this species was 

 noticed as QuinquelocuUna occidentalism Bailey ; and I still be- 

 lieve it to be identical with the shell so named ; but I presume 

 that it, as well as many other supposed species of the genus 

 QuinquelocuUna of D'Orbigny, must be included in Miliulina 

 Seminulum, as extended by Williamson. This shell is not in- 

 frequent in the -clays at Montreal, and it, also occurs in Gaspe 

 Bay. It approaches very nearly to the typical form of the spe- 

 cies, but is usually of small size, not exceeding ^jth of an inch in 

 length. 



Locality. — Logan's farm. 



Fig. 4. Fig. 5. 



5. Entosolenia globosa (Figs. 4, 5). — This species is not uncom- 

 mon in the clay at Montreal. Fig, 21 of my paper of last year i s 



