Fig. 



18. M. nana, Loven, {Tritonium.) — Fusus alius. — Lerwick, Zetland, 



Orkneys, etc., 45 fath., and deep, R. Ventricose, cancellated. 



19, 20. M. striolata, Scacchi, {Pleu.) — P. and Murex SmitJiii, Far- 



ranti. — S. Devon, Clyde, Guernsey, Bantry, etc., Medit., R. as 

 Brit. Ribs angularly curved above. 

 21, 22. M. costata, Pennant, {Murex.) — Buccinum, Fusus, PI. c, etc. ; 

 var. f. 22, M. Metcalfei.—Brit co. generally, 5 to 50 fath., N. and 

 S. Eu., C. Body-whorl larger than No. 24. 



23. M. coaectata, Forbes. — PL, M. costata var., B. M. — Distribution 



as 21 and 22 ; not so common. 



24. M. septangularis, Mont. {Murex.) — M., F., and PL costatus, kep- 



tagona, etc. — Torbay, Bristol Channel, Forth, Galway, 5 to 30 

 fath., Mc. 



25. M. attenuata, Mont. {Murex.) — M. aciculatus, PL gracilis, Vil- 



liersii, etc. — S. Devon, Oban, Hebrides, Cork, etc., Mr, S. Eu. 



26. M. gracilis, Mont. {Murex.) — M. emarginatus, suturalis, elegans, 



etc., S. Brit., Galway, S. Eu., Mr. 

 M. Holbollii. See Buccinum. 



Erato. 



27. E. levis, Donovan, {Voluta.) — E., Marginella, Bulla, Volvaria, 



and Columbella fusiformis, Cypraola, Bonovani, Muscaria, etc. — ■ 

 Brit. co. generally, 1 to 50 fath., Mc. 



Cypr^ea. 



28. C europj;a, Mont. — Cypr. and Trivia, Pediculus arclica, bullata, 



and diajphana. — Brit. co. generally, to 50 fath., C. 



