SCALARIA. 97 



perly belongs to the coralline zone ; but Mr. Clark found 

 a living specimen " in the middle of the littoral district, 

 at the roots of the Corallina officinalis, at Exmouth." 

 Mr. Humphreys took a dead one from the stomach of 

 a Red Gurnard at Cork. Fossil in the Coralline Crag, 

 Sutton (S. Wood); Belgian Crag (Nyst). Professor 

 Homes has described and figured a miocene species, 

 from the Vienna basin, under the name of S. clathratula, 

 supposing it to be our species ; I regard them as distinct. 

 The only foreign locality known to me, north of Great 

 Britain, is Bohuslan, where Malm dredged it in 70 f. It 

 inhabits the coasts of France, Spain, Portugal, Italy, 

 and Algeria, at depths ranging from 4 to 36 f. 



"This creature is very free in showing its peculia- 

 rities " (Clark) . He noticed the usual purpuriferous vein 

 behind the neck. According to him the operculum is 

 white : in a specimen from his collection the colour of 

 that appendage is yellowish-brown. The shell is a most 

 graceful object. 



It appears to be the Turbo lamellosus of Delle Chiaje, 

 S. pulchella of Bivona, and S. Georgetina of Kiener. 



Mr. M f Andrew dredged two fragments of S. Grcenlan- 

 dica in 38 f. off Duncansby Head in the north of Scot- 

 land. Although these fragments have every appearance 

 of being recent, I must request the reader to bear in 

 mind the remarks which I made in the Introduction to 

 vol. i. (pp. xciv-xcvi) with respect to the difficulty of 

 distinguishing fossil from recent shells procured under 

 similar circumstances. Not more than 30 miles below 

 Duncansby Head Mr. Robert Dawson traced a newei 

 tertiary deposit of great extent, containing Pecten Is- 

 landicus and other arctic species. S. Grcenlandica is not 

 uncommon in the high northern seas of both hemi- 

 spheres, its southern limit in Europe being Bergen. It 



VOL. IV. F 



