34 
~I 
. 
THE MOLLUSCA OF DORSETSHIRE. 
CLATHURELLA, Carpenter, 1857. 
The cancellated surface, more ventricose form, and more 
pronounced canal distinguish it from Mangilia. 
. C. purpurea (Mont.) Mangelia purpurea (JMozt.) 
A very rare Dorset shell. 
Brit. Conch., Vol. iv., p. 373. 
Weymouth, Thompson and Damon. 
. C. linearis (Mont.) Mangelia linearis (Jont.) 
Frequents sandy and shelly sea-beds at various depths. 
Distributed round the coast. 
Wevmouth Bay, W. Thompson. 
Between South Haven and Studland, Carleton Green. 
Kimmeridge Bay, dredged, J. C. AL-P. 
Fossil: Red and Coralline Crags. 
. C. gracilis (Mont.) Murex gracilis (JJont.) 
Inhabits the Coralline zone. 
Pulteney, p. 46, p. 14, f. 18. 
Portland, West Bay, 7’. Rackett. 
Weymouth Bay, dredged off Ringstead and Osmington, 
W. Thompson ; scarce, but very large, EL. R. Sykes. 
Kimmeridge Bay, dredged, J. C. M.-P. 
. C. Trevelliana (Zurton). Mangelia Trevelliana (Turton). 
Very rare ; a boreal shell. 
Between Studland and South Haven, Carleton Green. 
Fossil: Red and Ceralline Crags. 
DONOVANIA, Bucquoy, Dautz, and Dollfus, 1882. 
Fischer points out that the lingual rzbbon is most akin to that 
of Sipho ( = Tritonofusus): Journ. de Conch. 1888, pp. 132-6. 
D. minima (Mont.) Lachesis minima, Mont. 
Inhabits the Littoral and Laminarian zones, 
Forbes and Hanley, Vol. iii., p. 377, pl. 101, f. 7, 8. 
Brit. Conch., Vol. iv., p. 314. 
The position of this shell is uncertain. Most authors place 
it among the Mangilie. The operculum approaches the 
Muricide. 
Weymouth, dredged in three or four fathoms with Phasianella, 
S. Hanley. 
