242. 
THE MOLLUSCA OF DORSETSHIRE. 
Class AMPHINEURA. 
Order POLYPLACOPHORA, Bilaitnvilie. 
Sub-order EopracopHora, Shuttleworth, 1853. 
LEPIDOPLEURIDA. 
LEPIDOPLEURUS, Ztisso, 1826. 
L. cancellatus (Sow.), 1839. Chiton albus, Puld. 
Pulteney, p. 25, pl. 1, f. 3. Forbes and Hanley, Vol. ii., 
p. 410, pl. 59, f 3. 
Poole, on valves of shells and other objects, Pulteney. 
Weymouth, dredged, from § to 10 fathoms, S. Hanley. 
CALLOCHITON, Gray, 1847. 
. C. levis (Montagu). Chiton marginatus, Pult. 
Forbes and Hanley, Vol. ii., p. 411, pl. 3. Pulteney, p. 25, 
pl. 1., fig. 2 (probably). 
Weymouth, S. Hanley ; dredged 5 fathoms, EZ. R. Sykes. 
Poole Harbour, shore and lake ; sandbanks, Dr. Turner. 
TRACHYDERMON, Carpenter, 1863. 
. T. cinereus (Z.) Chiton cinereus, ZL. 
Pulteney, p. 25, pl. 1, f. 4. 
Common around our coasts. The greenish type lives under 
stones near low-water-mark, very common ; the red type 
in deep water. 
Weymouth, on the rocks, and on oysters, Pulteney ; common 
on the shore and dredged in 5 fathoms, EZ. R. Sykes. 
Poole, Pulteney. 
Kimmeridge Bay, under stones between tide-marks, dredged 
in deep water, J. C. M.-P. 
