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at the lower part of the upper surface, and numerous intermediate ones. Below the rounded 

 periphery appear two or three more remote lirae, with intermediate ones and numerous, regular, 

 flatter hrae on the convex basal part, becoming broader towards the umbilicus; the whole shell 

 is crossed by oblique, fine, but conspicuous growth-striae. Umbilicus narrow, in the front view 

 concealed by the columellar margin, with rather smooth walls. Aperture rounded-quadrangular, 

 upper margin thin, curved, running uninterruptedly in the basal margin, columellar margin 

 pardy reflected over the umbilicus. Interior of aperture nacreous, with a few shallow grooves, 

 corresponding to the stronger external lirae. Operculum brown, outer surface concave, many- 

 whorled, each whorl divided in two parts, a central one, with oblique, strong and an external 

 part with nearly perpendicular, fine striae. 



Alt. 30, diam. maj. 30; apert. alt. 17, lat. 15 Mill. 



This species resembles in shape C. y^icatecanum Dall (Blake Gastropoda, p. 370, PI. 24, 

 fig. 4), but is quite different in sculpture and many other characters. I know no other species, 

 with which to compare it. 



7. Calliostoma (Astele) scihihim Adams. 



A. Adams. Proc. Zool. Soc. Lond. 1S54, p. 38. 

 Reeve. Conch. Ic. Vol. XIV, Zizyphinus, fig. 44. 

 KlENER. Coq. Viv. Vol. X, Trochus, p. 274, PI. 90, fig. 3. 

 PiLSBRY. Man. of Conch. Vol. XI, p. 402; Vol. X, pi. 41, fig. 27. 



Stat. 144. North of Salomakie-(Damar)-island. 45 M. Coral bottom and Lithothamnion. 2 Spec. 

 Stat. 282. Between Nusa Besi and the N.E. point of Timor. 27 — 54 M. Sand, coral and 

 Lithothamnion. i Spec. 



The specimens agree sufficiently with those I received from Port Jackson, especially with 

 one of the 4 specimens in my collection ; the species till now, was only known from South 

 Australia. The specimens from Stat. 144 are not quite adult, that from Stat. 282 is very young. 



8. Calliostoma (Astele) expansum n. sp. PL V, fig. 9. 



Stat. 59. Western entrance Samau-strait. 390 M. Coarse coralsand with small stones. 5 Spec. 

 Stat. 302. 10° 27'. 9 S., 123° 28'. 7 E. 216 M. Sand and coralsand. 1 Spec. 



Shell depressed-conical, with convex sides, umbilicate, yellowish, with purple-brown blotches 

 at the peripheral keel and rarely (in one specimen) with fainter blotches and flames of the same 

 colour; whorls 6, convex, slightly depressed above the suture and consequently above the keel 

 of last whorl; nucleus smooth, followed by about one whorl with only a few spiral striae, next 

 whorls with conspicuous, spiral, beaded lirae ; with radiating plicae extending either over the whole 

 whorl or more or less at the upper part of each whorl; last whorl with 10 spiral lirae, of which 

 the lower form a sharp keel and the upper one is the strongest; the lirae are elegantly beaded 

 and connected by irregular, rather strong, elevated striae or plicae in the interstices; base nearly 

 flat, slightly convex, especially towards the aperture, with eight beaded, spiral lirae and a few 

 intermediate ones, the interstices are wider than on the upper surface, the most central one 

 runs nearly in the umbilicus. The base is crossed by rather regular, radiating plicae, not running 



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