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ADDENDA. 
Paupera, Gould, scabrous variety. Japan. 
—samoensis, D’k’r. 
—balteata, Pease. 
Paupera, Gould, var. tasmanica. Tasmania. 
Burchardi, D’k’r., broad variety. ==labecula, A. Ad. 
Labiosa, J: Sow. Crag. Var. maculata, A. Ad. Small and 
narrow. Philippines. 
Marginulata, Lam., dark brown, with a white central band. 
S. Archer, Singapore. 
- ribs distant, interstices grooved. Canton. 
Teenia, Gmel., small, dark brown, with a central white band. 
New Guinea. 
5 smooth, highly polished. 
Plicata, Meusch. (?), passing into the N. venusta, D’k’r. Ceylon. 
=thersites, Brug. 
Tabescens, Marr. (See description.) 
Compta, A. Ad., passing into the N. succincta, A. Ad. var. 
- 5 N. velata, Gould. 
» + N. pallidula, A. Ad. 
Bimaculosa, A. Ad., a small oblique form. Singapore. 
. var. Immersa, Carpt., variety elongated. 
Sesarma, Marr., all the whorls, with the exception of the two 
last, ribbed and coronated. 
Jacksoniana, Quoy and Gaim., passing into N. subspinosa, 
Lam. 8. Archer, Singapore. 
Between N. undata and sesarma, Marr. 
Callospira, A. Ad., ribs plain. 
é ribs cross-grooved. 
- ribs granular. 
Semigranosa, D’k’r. The thick white granular varieties pass 
into the white varieties of the N. nodicinata, A. Ad. 
Between N. sertula, A. Ad., and N. polita, Marr. 
» N. polita and interstincta, Marr. 
a as and bucculenta, Marr. 
=. N. bucculenta, Marr., and corniculum, Olivi. 
Teenie, Gmel., smooth, polished, and pale in colour. 
New Guinea. 
Marginulata, Mart. and Chem., 2nd edit., pl. 12, f. 7, 8, is 
intermediate between the shell of Lam. and the next. 
