Thompson, T.E. & Brown, G.H. British Opisthobranch Molluscs. Mollusca: Gastropoda. Keys and Notes for the Identification of the Species. 1st. Ed. Pub. Academic Press. 1976
pp.203 with colour frontis., and b/w. illus., throughout. 8vo. Ex-lib. A vg. plus softback.
Synopses of the British Fauna (New Series) No. 8.
£4.00 [Ref: 58528]