44 THE MOLLUSCA OF DORSETSHIRE. 
166, R. membranacea (Adams). R. labiosa, Pult. 
Pulteney, p. 49, pl. 18, f. 16. Forbes and Hanley, Vol. iii., 
p. 109, pl. 76, £. 5, pl. 77, #. 1,2, 3." Brit. Conch., Viokaws 
p. 32. 
Weymouth, Barlee. 
Fleet, Wyke Regis, abundant, W. T’hompson. 
Poole, 7. Rachkett. 
Swanage Bay, dredged, J. C. M.-P. 
Var. minor, Jeffreys. 
Weymouth, Barlee. 
Several interesting varieties found near the mouth of the 
Fleet, H. R. Sykes, and as high up as the Swannery, 
J. C. M.-P. 
167. R. violacea (Desmarets.) R. rufilabrum (Leach), Alder. 
Brit. Conch., Vol. iv., 34. 
Inhabits the Laminarian zone. 
Weymouth, Damon, EH. R. Sykes. 
Swanage, J. LH. Cooper. 
168. R. ecostulata, Ald. 
Forbes and Hanley, Vol. iii., p. 103, pl. 77, f. 4, 5. 
3rit. Conch., Vol. iv., p. 36. 
Weymouth, Jeffreys, HE. R. Sykes. 
Lulworth, Jeffreys. 
Kimmeridge Bay, shore-sand, J. C. M.-P. 
Challenger Expedition, Madeira. 
Fossil : Middle Pliocene. 
169. R. striata (Adams.) 
Inhabits stones and muddy places between tide-narks and in 
the Laminarian zone. 
Weymouth, Damon. 
Swanage, J. H. Cooper. 
Studland, Old Harry, dredged, Dr. Turner. 
Kimmeridge Bay, dredged at several depths, J. C. M.-P. 
Fossil: Raised Beach, Portland, Prestwich. Coralline Crag. 
