190 PLANAXIDA. 
12. Planaxis ater. 
Planaxis ater,! Pease, Amer. Journ. Conch. V, 1868, Marquesas —long. §, 
diam. 44 mil. [not Pl. ater of the Con. Icon.]; = Pl. hanleyi, Smith, Ann. 
Mag. XTT, 1872, Sandwich Islands, long. 12, diam. 5: mil. 
1 Viti ; ex Mus. Godeffroy. 
Agrees excellently with original figure, &c. 
13. Planaxis atropurpureus. 
Planaxis atropurpureus, Recluz, Rev. Zool. Cuv. 1843, p. 261, South Seas— 
anfr. 5 to 6—long. 7, diam. 4 mil. ; P= Pl. albersi, Dkr., Nov. Conch. 
Sup. IT, pl. I, fig, 3537, W. Africa. 
2 Paumotu; ex Mus. Godeffroy. 
Sent as “ Pl. brevis, Quoy” [Guam and N. Guinea], which 
is, however, quite different. It is like a dwarf Pl. abbreviatus.] 
Long. 5, diam. 3 mil. ; anfr. 3. 
14. Planaxis semisulcatus. 
Planaxis semisulcatus, Sowerby, Genera Shells, I, 1824, Hab.? ;= Purpura 
nucleus, Lam. VII, 1822, [not Buc. nucleus, Brug. 1789, from Mada- 
gaseur |. 
12 W. Indies, exc. Prof W. Newcomb. 
1 St. Thomas; ex c. Colonel Godwin-Austen. 
15. Planaxis acutus. 
Planaxis acutus, Krauss, Siid—Afrik. Moll. 1848, Natal, long. 6, diam. 34 
lin. ; var. =Pl. similis, Smith, Ann. Mag. XII, 1872, Sandwich Islands, 
long. 114, diam. 5} mil. 
The figures 11 and 12 of the Con. Iconica, Pl. similis and Pl. 
hanleyi, Smith,” both resemble more closeiy the original figure 
of Krauss than does fig, 9, ‘Pl. acutus”. I consider Smith’s 
Pl. similis doubtfully separable even as a variety. The species 
varies much in size, and tendency to subangulation at the peri- 
phery. Pl. ater, Pease, is scarcely more than a geographical race 
or variety. 
13 Cvylon; coll. G. Nevill, Esq., [largest specimen—12$, 73]. 
10 Mauritius and Bourbon; coll. G. Nevill, Esq. 
1 Andamans [?]; coll. Dr. F. Stoliczka. 
