Chapter M: RUDIS. See Trophon

PURPURA.

5. P. LAPILLUS, _Linn._ (_Buccinum._)--_B._ and _P. filosum_, _imbricatum_, and _bizonalis_.--In crevices on shores, Brit. co. generally, N. and S. Eu., C.

LACHESIS.

6. L. MINIMA, _Mont._ (_Buccinum_.)--_B. brunneum_, _B. rubrum_, _Nesæa granulata_, _mamillata_, _Fusus minimus_, etc.--Channel Isls. and S. Brit., on shores. S. Eu.

BUCCINUM.

7. B. HOLBOLLII.--_Mangelia H._--Cornwall, Rr.

8. B. UNDATUM, _Linn._--_B. striatum_, _anglicanum_, _pyramidale_, _imperiale_, etc.--Brit. co. generally, shores, Cc. N. Eu. and Am.

9. B. ACUMINATUM, _Brod._--_B. undatum_ var., B. M.--Rr.

10. B. CILIATUM, _Fabr._ (_Tritonium._)--Shetland, deep water, R. More thin than No. 9; with striæ finer, and hairs of epidermis tufted minutely.

11. B. FUSIFORME, _Brod._--Cork, Wexford, Rr. Turreted, fusiform, white, ribbed, striated.

12. B. DALEI, _Sowerby._--_B. ovum_, _Halia Flemingiana_.--Torbay, Northumberland, Aberdeen, etc., R. Ventricose.

13. B. HUMPHREYSIANUM, _Bennett._--_Tritonium H._--Cork, Skye, Bantry Bay, R. Light, smooth.

FUSUS.

14. F. BERNICIENSIS, _King._--Northumberland, Rr. Carinated, with open pink mouth.

15. F. NORVEGICUS, _Chemn._ (_Strombus._)--_Tritonium n._--Scarborough, Durham, Rr. Oval, smooth, with large aperture.

16. F. ANTIQUUS, _Linn._ (_Murex._)--_M._, _B._, and _Tritonium despectus_, _contrarius_, _carinatus_, _babylonicus_, etc.--Various Brit. co., 5 to 30 fath., C.

17. F. ISLANDICUS, _Chemn._--_Murex corneus_, _Tritonium gracile_, etc.--Brit. co. generally; 5 to 80 fath.; N. Eu., C. (See _F. propinquus_.)

18. F. TURTONI, _Bean._--Yorkshire, Northumberland, 60 fath., Rr.

19. F. PROPINQUUS, _Alder._--_F. corneus_ and _islandicus_, var.--N. Scotland, Bantry Bay, Northumberland, deep water, Mr. Shorter than _F. islandicus_, with deep suture and symmetrical spire.

TROPHON.

20. T. RUDIS, _Phil._ (_Fusus._)--_Murex r._, Jeffreys.--Tenby; unique as British. Whorls and ribs rounded.

21. T. MURICATUS, _Mont._--_Fusus_ and _Murex m._--Brit. co. generally, Channel Isls., 15 to 50 fath., Mr. Whorls angular, ribs intersected.

22. T. SCALARIFORMIS, _Gould._--Belfast, in sand, Rr. Ribs smooth.

23. T. CLATHRATUS, _Linn._ (_Murex._)--_Tritonium_, _Fusus_, and _Pleurotoma Bamfius_.--Irish sea, Zetland, Mc. Ribs laminated.

24. T. BARVICENSIS, _Johnston._--_Fusus_ and _Tritonium b._--Hebrides, Cork, Northumberland, 60 fath., Mr. Ribs aculeated.

PLATE XIX.

NASSA.

Fig.

1. N. RETICULATA, _Linn._ (_Buccinum._)--_N. pullus_, _Tritonium r._--Brit. and Eu. co. generally. Littoral, Cc.

2. N. INCRASSATA, _Müller_, (_Buccinum._)--_N._ and _B. minutum_, _macula_, _asperulum_, etc.--Brit. shores generally, 0 to 50 fath., gravel, C.

3. N. PYGMÆA, _Lamk._ (_Ranella._)--_B. tuberculatum_, _Tritonia varicosa_, etc.--S. Brit. co., S. Eu., 4 fath. to deep water, C. Small, with white varices on the body.

MANGELIA.

4. M. TURRICULATA, _Mont._ (_Murex._)--_Bela_, _Fusus_, and _Pleurotoma angulatus_, etc.--Brit. co. generally, 3 to 100 fath., N. Eu., C. Whorls flat above.

5. M. TREVELLIANA, _Turt._--_Pleurotoma_, _Bela_, and _M. reticulata_, _decussata_, and _leucostoma_.--Northumberland, Aberdeen, Zetland, etc., 15 to 40 fath., R. Whorls with angular slope above.

6. M. RUFA, _Mont._ (_Murex._)--_F._, _M._, and _B. chordula_, _Ulideana_ (var.), etc.--Brit. co. generally, Mc.

7. M. TERES, _Forbes_, (_Pleurotoma._)--_P. boreale._--Various loc., 15 to 50 fath. S. Eu., Mr. Carinated, aperture deeply notched.

8. M. PURPUREA, _Mont._ (_Murex._)--_Fusus_ and _Pleu. p._, _Philberti versicolor_ and _variegatum_.--Brit. co. gen., 3 to 60 fath., C. S. Eu.

9. M. CANCELLATA, _Sowerby_ (_Fusus._)--_M. purpurea_ var., _F. asperrimus_,--Cornwall, Cork, R. Sharply sculptured.

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.

21, 22. M. COSTATA, _Pennant_, (_Murex._)--_Buccinum_, _Fusus_, _Pl. 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. COARCTATA, _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_, _heptagona_, etc.--Torbay, Bristol Channel, Forth, Galway, 5 to 30 fath., Mc.

25. M. ATTENUATA, _Mont._ (_Murex._)--_M. aciculatus_, _Pl. gracilis_, _Villiersii_, 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.