PLATE XIII. 



ASSIMINE^. 



Pig- 



1. A. Gray ANA, Jeffreys. — Limnens and Paludtna G. — Greenwich and 



other marshes. 



2. A. LiTTOREA, Belle Chiaje, {Helix lUtorma.) — Rissoa glohularu and 



litlorea. — On shore at Weymouth, Serk, Portland, Mr. 



Rissoa, or Cingula. 



3. R. ULV^, Pennant, {Turbo.) — Helix, Cingula, Paludina, and Litto- 



rina. — In brackish water, on British shores, C. 

 3*. var. mhumhiUcata, R. 



4. R. Bauleei, Jeffreys. — R. ulvce var. — Loch Carron, Skye, R. 



5. R. STRIATULA, Mont. — R., Turho, Cingnla, and LiUorina carinata 



and monilis. — Devon, Margate, Galway, Harm, etc., to 7 fath,, 

 Mr. ; S. Eu. Carinated. 



6. R. ciMicoLDES, Forbes. — R. sculpta. — W. Scotland. Like R. zet- 



landica, but with outer lip crenulated ; finely decussated. 



7. R. ZETLANDiCA, Mont. {Turbo.) — R., Cyclostoma, Cingula scalari- 



formis, Cyclostrema z. — N. Scotland, to 60 fath., Mc. Wliorls 

 angulated. 



8. R. CRENULATA, Midland. — Turbo and R. cimex and cancellatus. — 



Falmouth, Cornwall, Skye, Galway, C. Very coarsely cancellated. 



9. R. CALATHUs. — Forbes andHanley. — Sheerness, Whitesand Bay, 15 



to 50 fath., R. Finely cancellated. 



10. R. Beanii, Hanley. — Cornwall, Plymouth, Orkney, Galway, C. ; 



N. Eu. Striated. 



11. R. ABYSsicoLA, Forbes. — N. Scotland; deep water, R. 



12. R. LACTEA, Michaud. — Ttirbo cancellatus. — Jersey and Medit., Rr. 



Oval, plicated and striated. 



13. R. PUNCTURA, Montagu. — Turbo and Cingula and R. reticulata. 



— Brit. CO. generally, 10 to 20 fath. 



14. R. cosTATA, Adams. — R., Turbo, Cingula plicata, costata, and exigua. 



— South CO. Brit., S. Wales, Orkneys, Ireland, Channel Isls., 

 to 25 fath., C. 



15. R. STRIATA, Mont. — R., Turbo, and Cingula semicostata, minutissi- 



ma, communis, gracilis, etc. — Brit. co. generally, N. and S. Eu. ; 

 littoral C. 



16. 17, 18. R. PARVA, Costa. — T., C, and R. sublutea, lactea, alba, 



etc., R. interrupta (var. f. 17), R. Sarsii, var. f. IS (unique).- — 

 Brit, shores generally, C. 

 19. R. cosTULATA, Alder. — Turbo variabilis, R. .nmilis. — Devon, Chan 

 nel Isls., W. Ireland, etc., C; S. Eu. 



