FAMILY 10. PURPURIFERA. 237 
Pl. CCLXIX. Fig. 4. 
Nassa cCLATHRATA*, Encylopédie Méthodique, pl. 394. f. 5.a,b. Sow- 
erby, Genera of Shells, No. 25. 
Buccinum gemmulatum, Lamarck. 
Pl. CCLXIX. Fig. 5. 
Nassa PAPILLOSA, Sowerby, Genera of Shells, No. 25. Martini, Conch., 
vol. iv. pl. 125. f. 1204 and 1205. 
Buccinum papillosum, Linneus. Lamarck. 
Pl. CCLXIX. Fig. 6. 
Nassa ABBREVIATA, Nobis. 
Buccinum abbreviatum, Chemnitz, Conch., vol. x. p. 194. pl. 153. f. 1463 
and 1464. Wood, Index Testaceologicus, pl. 22. f. 12. Kiener, 
Iconographie des Coquilles vivantes, pl. 26. f. 105. 
Nassa globosa, Sowerby. 
PLANAXIS, Lamarck. 
Testa solida, ovato-conica, sinu perangusto terminata; spira subacuta ; 
apertura ovato-oblonga; columella levi, callo superné instruct, 
basi depressa, truncata; labro externo leviter incrassato, fauce sul- 
cata, aut lineata. Operculum tenue, corneum. 
Lamarck very naturally observes, when describing the characters which 
entitle the Planaxes to rank as a genus, that they exhibit a strong affinity 
with the Buccina and Purpure ; why then did he so indiscreetly arrange 
them between the Turbines and the Phasianelle? The Planaxes differ from 
both these genera, not only in having their shells sinuated at the base, but 
* Care must be taken not to confound this species with the Buccinum clathratum of Bruguiére, 
nor with the Buccinum clathratum of Kiener, the latter of which is the Buccinum globulosum 
of Quoy. 
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