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As the columella of this species is slightly thickened in the middle, I have located it 

 in Cantharidtis. I see eleven striae on the last whorl, the uppermost and lower two, border 

 slightly prominent lirae. Base with about lo lirae, convex. 



5. Cantharidtis (Thalotia) maldivensis Smith. 



Smith. The Fauna and Geography of the Maldive and Laccadive Archip. Vol. II, part 2. 

 Marine Mollusca, p. 617, PI. 35, fig. 25, 26. 



Stat. 37. Sailus Ketjil, Paternoster-islands. 18 and 17 M. Coralsand. 5 Spec. 



Stat. 99- North-Ubian. 16 — 23 M. Lithothamnion-bottom. i Spec. 



Stat. 109. Pulu Tongkil, Sulu-Archipelago. 13 M. Lithothamnion-bottom. 5 Spec. 



Stat. 133. Lirung; Salibabu-island. 36 M. Hard sand. I Spec. 



Stat. 240. Banda. 9 — 45 M. Lithothamnion-bottom. 3 Spec. 



E. A. Smith has described (I. c.) two colour-varieties. The specimens of the Siboga 

 Expedition show a larger range of variability. Some specimens are nearly typical, others are 

 typical in painting, but with white ilames on a purple ground, or of a uniform green, shaded 

 with yellow, with or without the spotted band at the base of each whorl. In most specimens 

 the colour is mixed with yellow granules, and sometimes also with nearly black ones. The largest 

 specimen, from Stat. 99 has a length of 1 2^/3 Mill, and slightly coarser sculpture. Besides the 

 sculpture described by Smith, I observed still another system of sculpture, visible only under 

 the lens; between the rows of granules, are a few fine, spiral, elevated striae, i to 3 in each 

 interstice of the last whorl, crossed by oblique, slightly lamellose striae. On the base of the 

 shell I observed also one distinct, and often i or 2 very small intermediate lirae, and also less 

 crowded oblique striae. 



6. Cantharidus (Thalotia) pliciferiLS n. sp. PI. Ill, fig. 3. 



Stat. 109. Pulu Tongkil, Sulu-Archipelago. 13 M. Lithothamnion-bottom. i Spec. 



Shell conical, with a rather elevated spire and convex base, angular at the periphery, 

 imperforate. Whorls 6, slightly convex, upper 3 whorls white, the fourth rosy, turning to crimson 

 on the fifth ; last whorl whitish, rather regularly ornamented by brown blotches in 5 spiral rows, 

 angle or keel articulated with white and black, base with 6 rows of blackish-brown blotches. 

 Embryonic whorls wanting at least for a large part; first persisting whorl, smooth at first, then 

 with 4 spiral lirae, with narrow interstices, which are punctured; on the fourth whorl radiating 

 ribs make their appearance, running from suture to suture, and making the upper edge of this 

 and the subsequent whorls crenulated near the suture, which is very deep and waved at the 

 base of each whorl, by the bluntly ending ribs. On the last whorl, the ribs are nearly white, 

 especially towards the periphery, this whorl and the penultimate one have 5 spiral lirae exclusive 

 of the peripheral keel. Base with 6 spirals of which that near the columella is uniformly white, 

 like the ground-colour of the base, the other ones have the blackish spots; their interstices are 

 broad, with slightly scaly striae; moreover the whole shell in covered with very fine growth- 

 striae, visible only under a strong lens. Aperture subquadrate, outer and basal margins thin, 



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