OF NORTHUMBERLAND AND DURHAM. 167 
Rare. Dredged in about 20 fathoms water at Cullercoats in 
1837.—/J. A. A-specimen has also been got from the fishing 
boats at the same place.—J. H. F. 
Mr. Bean’s description was taken from young shells, and is in 
some respects imperfect. Our specimen is about half an inch 
long, and nearly black ; the granules are disposed in longitudinal 
beaded lines, which are small, and rather faint on the dorsal 
ridge, and become coarse and less regular at the sides. When 
alive, the spines of the marginal band are slightly fasciculated, a 
few of them standing erect near the junctions of the valves ; but 
these fall after the animal dies, and the margin then appears uni- 
formly hispid. 
3. C. MARGINATUS, Penn. 
Chiton marginatus, Mont. Test. Brit. 1. 
Common under stones between tide-marks, and very variable 
in colour and markings. 
4. C. crnEreEvs, Linn. 
Chiton cinereus, Mont. Test. Brit. 3. 
On stones and old shells from deepish water, frequent. Oc- 
casionally found on stones at low-water mark.—A. H. 
The variety found on our coast is rather small, grey, and 
usually freckled ; but is seldom covered with the black incrusta- 
tion so common on some of the large varieties of the Scottish 
coast. 
5. C. RuBER, Linn. 
Chiton ruber, Flem. Brit. Anim. 289. 
Under stones near low-water mark, and at the roots of Lamin- 
aria digitata, frequent. 
6. C. tavis, “ Penn.” Mont. 
Chiton levis, Mont. Test. Brit. 2. 
Under stones at low-water mark, rare. 
7. C. Lavieatus, Flem. 
Chiton levigatus, Flem. Brit. Anim. 290. 
Among the rocks below Dunstanborough Castle, very rare.— 
Mr. k. Embleton. A single living specimen was also got at 
Cullercoats—A. H. The disunited valves are sometimes thrown 
on Whitley sands.—J. H. F. 
