59 



plants and to other shell?. Its favourite quarters are the inner sides of the valves 

 of dead Uniones &\\d Anodontn; from which, if disturbed in the least, it is very 

 difficult to detach them without breaking the shell. This species has been ob- 

 served in Nfcw York and the Eastern States, but its range is more restricted than 

 that of Ancylus rivularis. 



11. Zonites minusadus, Binney. A few specimens of this minute Helix were 

 found by Mr. Latchford in Eardley, Que., in September, and it has been reported 

 as found near Toronto by Mr. Brodie. It has probably escaped notice in other 

 localities on account of its small size. 



12. Vertigo milium, Gould. A single specimen of this species was found by 

 Mr. Latchford in Billing's Bush. It is remarkable as being the gmalUst species 

 of the genus. 



13. Unio luteolus, Lamarck. ] 



14. " cariosus, Say. 



15. •' occidens, Lea. 



16. " gracilis, Barnes. 



17. " pressus, Lea. 



18. '■ Canadensis, Lea. 



1 9. " borealis, A. F. Gray. 



20. Anodonta edentula, Say. 



21. " subcylindracca, Lea. 



22. " Benedictii, Lea. 



23. " Lewisii, Lea. 



24. " implicaia, Say. 



25. " Footiana, Lea. 



26. " lacustris, Lea. 



27. " fragilis, Lamarck. J 



28. Sphxriuvi truncatum, Linsley. This species resembles S. sccuris, Prim?, 

 and might at first sight be confounded with that shell. It differs, however, in 

 being much less inflated, less inequilateral, and lighter in colour. Its post margin 

 is mord nearly a straight line, giving the shell the appearance of having been 

 cut short — truncatum. This species is found in the St. Louis Dam pond. 

 Unlike S. rhomboideum and S. sulcaiiim, it is very active. Specimens kept in 

 confinement are almost always in motion. With the S3'phonal tube protruding 

 behind they will extend the foot in Iront more than half an inch, attach it to the 

 side of the vessel, and then contracting it will pull the shell forward. By this 

 means they move in every direction with ease. 



{-See Mr. Latchford's paper. 



PiXE Life. — H. Beaumont Small, M.D. 



There are few of our members who have not noticed the remaining venerable 

 specimens of Pinus srrobus, L., in the woods bordering the Bank Street road, 

 just outside the city limits. The finest of these, and the one with which all 

 were most familiar, stood at the edge of the road, guerdini? the bridge over 

 Patterson's Creek ; and I am sure all must have experienced a feeliiig of regret 

 when the decree for itt; destruction went forth. Towering majestically above the 

 surrounding growth, it was tlie landmark eagerly sought by the tiied Laturalist 

 returning from a day's outing, and its prominence made it a fitted rendezvous 

 for many sub-excursions of this Club. The gi eatest height of its double trunk 

 ivas two hundred and thirty teet, and its circumference at four feet above the 

 surface measured sixteen feet. This, judging from the size of other slumps in the 

 sieighbourhood — from the remains of prostrate trees — and from logs floated down 



