V O L U T A. 



91 



Linn, names. Gm. Engl. names. Synonyms. Habitat. 



19 triplicata 3-toothed DA,t.l38. M.Suppl.p.99. 



Guernsey. 



20 pusilla 3436 small oval F. t.65,f. H.4. C.2,tA3, 



/.446. u. 



21 bidentata double-toothedM.Suppl.p.lQQJ.SO,/^. Britain. 



22 alba white W.M.S.f.Ql. M.p.225. 



23 pellucida pellucid W.M.S.fAQ. M.t.l2,f.9. 



24 unidentata single-toothedZ.jT.8,^.131. 



25 interstincta * , divided L. T. 3, t. 13, f. 23-4. 



M.t.l2,fAO. 



26 insculpta engraved M.Sujypl.p.129. 



27 plicata plaited M.t.2l,f.2. L.T.8,p.l31 



28 ambigua doubtful M.SuppU.21,fA. L.T.8, 



p.132. 



29 Porphyrea 3438 Porphyry G.t. 24, /. P. C. 2, .46, 



/. 485-6. E.M. f.361, 



/.4. West Indies. 



30 erythrostoma orange-marbled L.t.727,f.I4,, G f .^.24,/.O. 



C.2,tA5,fA76-7.E.M. 

 t.361,f.2. Amboyna. 



31 oliva 3439 olive L. t. 728, f. 15. ..24, 



/.F. C. 2, t.5l,f.559. 

 E.M.t.362,f.5. 



32 cruenta orange-throated L. t. 720, /. 4, 5. G.t. 23, 



/. Q. C.2,*.46,/.491-2. 

 E.M.t.3Q8,f.2. 



33 annulata 3441 ringed L.t.7l7,f.l. C.2,t.5l, 



/.564. E.M.t.3Q3,f.2. 



Isle of France. 



