Mollusks. 4455 



were found alive, some of which were forwarded to the learned 

 Baronet, who at once allowed that his theory was no longer tenable. 

 The celebrated bank at Inchrory is of far purer lime than any marl, 

 being a solution made by the water percolating the limestone beds, 

 and deposited in the form of calc-tuffa as soon as it emerges to 

 the surface. Its origin therefore cannot be, as Sir Thomas affirmed, 

 " the exuviae of aquatic Helices." Mr. Macdonald finds the variety 

 hortensis the most common form, but has also collected the typical 

 nemoralis as well as the variety hybrida at Burghead. 



Wrinkled Snail-shell, Helix caperata. Abundant on stone dykes 

 at Inverugie, and near Lesmurdie cottage, Mr. Martin; at and 

 around Burghead, Mr. Murray ; near Gray's Hospital, and between 

 Bishopmill and Oakwood, Mr. Macdonald. 



Silken Snail-shell, Helix sericea, (H. hispida, Flem.) Near 

 Cothall, on the Findhorn, Mr. Martin ; old castle of Dunphail, Mr. 

 J. Shand. 



Pyramidal Snail-shell, Helix fulva, {H. Trochilus, Mac. and Flem.) 

 Among leaves on the banks of the Findhorn, near Foresterseat, and 

 in an old quarry in the wood of Main, Mr. Martin ; Burghead, Mr. 

 Murray ; Lesmurdie cottage, &c, Mr. Macdonald. 



Little White Snail-shell, Helix pulchella, (H. costata, Flem.) 

 Abundant, but local. Near Lesmurdie cottage, Mr. Martin ; Burg- 

 head, Mr. Murray. 



Radiated Snail-shell, Helix rotundata, (H. Turtoni, Flem., Zonites 

 rotundalus, Mac.) At the old castles of Spynie and Duffus, Mr. 

 Martin; Burghead, Mr. Murray ; Kinloss Abbey, and also near 

 Oakwood Elgin, Mr. Macdonald. 



Sharp-pointed Bulimus, Bulimus acutus. It is not without some 

 hesitation that this pretty species is here included. It was observed 

 in rather a suspicious locality, a mantel-piece, to form a considerable 

 portion of shells almost wholly native, and collected on the Caithness 

 coast near Duncansbay head, and presented to the Rev. James Leslie, 

 of Burghead. As it is found plentifully in some parts of Skye, near 

 the sea, the probable Caithness locality cannot be objected to as too 

 northerly a range for this shell. 



Lustreless Bulimus, Bulimus obscurus. Rather rare. At Boghole 

 on the Brodie burn, and at Cothall on the Findhorn, Mr. Martin ; 

 old castle of Dunphail, Mr. Macdonald. 



Umbilicated Chrysalis-Snail, Pupa umbilicata, (P. muse or urn, 

 Flem.) Common. "Particularly abundant among the ruins of the 

 bridge, at the south end of the avenue leading from Barmuckity to 



