Illustrated Index of British Shells / Containing figures of all the recent species

by G. B. Sowerby

10. M. reticulatum, Brown, (Pleurotoma.)—M. cancellata var.—Shetland, Guernsey, Rr. Sculpture between 8 and 9; inner lip not thickened.

11. M. Leufroyi, Michaud, (Pleurotoma.)—P., F., and M. inflata, Boothii.—Arran, Orkneys, Guernsey, etc.; S. Eu., 5 to 50 fath., Mc.

12. M. linearis, Mont. (Murex.)—M., Pl., Fus. elegans, concinna, etc.—Brit. co. generally, sand and shells, 1 to 80 fath., C.

13. M. scabra, Jeffreys, (Pleur.)—M. linearis var.—Guernsey, Plymouth, R.

14. M. nebula, Mont. (Murex.)—M., P., and F. Bertrandi, varians, and pyramidatus.—Various places and depths, N. and S. Eu., C.

15. M. lævigata, Phil. (Pleu.)—M. nebula var.—South Brit., S. Eu. Small, fusiform, shiny, banded.

16. M. Guinniana, Phil. (Pleu.)—M. nebula var.—Tenby, etc., Mr. S. Eu. Whorls longer than No. 14.

17. M. brachystoma, Phil. (Pleu.)—M. tiarula and Clavatula b.—Brit. co. gen., Mr. Turreted; ribs crossed by raised lines.

18. M. nana, Lovén, (Tritonium.)—Fusus albus.—Lerwick, Zetland, Orkneys, etc., 45 fath., and deep, R. Ventricose, cancellated.

19, 20. M. striolata, Scacchi, (Pleu.)—P. and Murex Smithii, Farranti.—S. Devon, Clyde, Guernsey, Bantry, etc., Medit., R. as Brit. Ribs angularly curved above.