162. 
163. 
164, 
165. 
THE MOLLUSCA OF DORSETSHIRE. 43 
R. cancellata (Da Costa). R. crenulata, Michaud. 
Forbes and Hanley, Vol. iii., p. 80, pl. 79, f. 1, 2. 
Pulteney, p. 49, pl. 14, f. 6, 9. 
Found sparingly on the coast, Pulteney. 
Portland, West Bay, dredged (dead), 15 fathoms, McAndrew 
and £. Forbes. 
Shore, between Studland and South Haven, Carletun Green. 
R. costata (Adams). Turbo costata, Adams. 
Pulteney, p. 51, pl. 19, f. 5. 
Found by Colonel Montagu on the coast, T. Racket. 
Weymouth, Damon. 
Sandsfvot, Weymouth, under stones, W. Thompson, E£. R. 
Sykes. 
Swanage, J. EL. Cooper. 
Kimmeridge Bay, between tide-marks, under _ stones, 
J.C. M.-P. 
Fossil : Middle Pliocene. 
R. parva (Da Costa). 
Pulteney, p. 50, pl. 19, f. 4. 
Forbes and Hanley, Vol. iii., p. 98, pl. 76, f. 2, 6,and pl. 77, 
f. 6, 7. 
On sea-weeds at low-water-mark and in the Laminarian 
zone. 
Common on the Dorsetshire coast, Pulteney. 
Shore between Studland and South Haven, Carleton Green. 
Swanage, J. L. Cooper. 
Kimmeridge Bay, under stones and on corallines near low- 
water-mark (alive), among shell-sand (dead), J. C. M.-P. 
Weymouth, common in weed, &. &. Sykes ; dredged alive 
twelve fathoms, Forbes and Hanley. 
R. inconspicua (Alder.) 
Forbes and Hanley. Vol. iii, p. 113, pl. 76, f. 7, 6, pl. 82, 
f. 5-9. 
A common British shell, subject to great modifications, and 
associated with the preceding. 
Weymouth, Forbes and Hanley. 
Fossil ; Norwich Crag ; post-glacial beds, Norway. 
