01. N. reticulata, Linn. (Buccinum.)—N. pullus, Tritonium r.—Brit. and Eu. co. generally. Littoral, Cc.
02. N. incrassata, Müller, (Buccinum.)—N. and B. minutum, macula, asperulum, etc.—Brit. shores generally, 0 to 50 fath., gravel, C.
03. 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.
04. M. turriculata, Mont. (Murex.)—Bela, Fusus, and Pleurotoma angulatus, etc.—Brit. co. generally, 3 to 100 fath., N. Eu., C. Whorls flat above.
05. 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.
06. M. rufa, Mont. (Murex.)—F., M., and B. chordula, Ulideana (var.), etc.—Brit. co. generally, Mc.
07. M. teres, Forbes, (Pleurotoma.)—P. boreale.—Various loc., 15 to 50 fath. S. Eu., Mr. Carinated, aperture deeply notched.
08. M. purpurea, Mont. (Murex.)—Fusus and Pleu. p., Philberti versicolor and variegatum.—Brit. co. gen., 3 to 60 fath., C. S. Eu.
09. M. cancellata, Sowerby (Fusus.)—M. purpurea var., F. asperrimus,—Cornwall, Cork, R. Sharply sculptured.