PLATE IV. 



Ltjtraria. Inhabits mutl. 

 Fig- 



1. L. INTERMEDIA?, Sowb. — Perhaps only the young of L. elliptica. 



2. L. ELLIPTICA, Lamk. — Madra lutraria, Linn. — Scarborough, Tor- 



bay, Dublin, Forth, Lerwick, etc., C. Broad, oval. 



3. L. OBLONGA, Chemn. — {Mi/a) L. solenoides, L. hians, Mactra Mans, 



Chama magna. — Cornwall, Devon, etc., Mc. Arched, narrow. 



Tapes. Burrows in mud and stone. 



4. 5. T. pullastra. — Wood. — Venus puUastra, V. perforans (var. ./. 



4), Fenerupi.s, nucleus, Pnllastra vulgaris, etc. — Plymouth, Scar- 

 borough, Swansea, Forth, etc., C. 



6. T. DECUSSATA, i^wm. — [Venns) F. litterata, V. fiorida, Venenipis 



&nA pullastra d. — S. Devon, Weymouth, Tenby, etc., Mc. Ob- 

 long, coarsely decussated. 



7. T. aurea, Gmel. — (Venus) V. nehdosa, V. cenea, V. nitens, V. si- 



nuata, Pullastra a. — Cornwall, Sussex, Bantry Bay, Loch Ryan, 

 Mc. Yellow within. 



8. T. virginea, Linn. — [Venus) V. rliomboides, V. sarniensis, V. 



virago, Cuneus fasciatus. — Various British loc, C. Pink 

 within. 



LuciNOPSis, Forbes and Hanley. Sandy ground. 



9. L. UNDATA, Pennant. — {Fe7ms) F. simtosa, F. incorrupta, Lucina 



undata. — Exm., Scarborough, Man, etc., 5 to 80 fathoms, M.E. 

 Orbicular, flexuous at side. 



Artemis. 



10. A. EXOLETA, Linn. — [Fenus) Cytherea e. Pectunculns capiUacevs. 



— Sandy ground, on Brit. co. generally, low-water to SO fath., 

 C. Compressed ; striae coarse. 



11. A. LINCTA, Pult. — {Fenus) F.sinuata, Cytherea sinuata. — Various 



Brit, loc, C. Dorsal edge sloping ; striae fine. 



Venus. 



12. V. CASINA, Linn. — F.reflexa, V. lactea, F. discina. — Northumber- 



land, S. Devon, Man, Bantry, Skye, etc., Mc. Concentrically 

 laminated. 



13. V. VERRUCOSA, i/?'?e?/. — F. erycina, F. cancellata, etc. — Devon, 



Cornwall, Channel Isls., etc., C. Ventricose, warted. 



14. V. FASCiATA, Donov. — Various southern Brit, loc, C. Round, 



with thick ribs. 



