MOLLUSCA EASl' dl' CAPE IIVKON 



i9 



X 



white and chocolate. Sculp- 

 ture, of fifty sharp beads 

 arranged as a projecting 

 keel around the periphery. 

 Above the suture and perip- 

 hery runs a spiral cord which 

 doubles on the last whoi'l. 

 P^i'oni suture to peiiphery, 

 overriding the spirals in their 

 ct)urse, radiate sharp, narrow, 

 elevate lamellte. They con- 

 spicuously lattice a furrow 

 beneatli the peripheral bead 

 row, and there end abruptly. 

 The radiate lamellre continue from whoi'l to whorl, here and there 

 fresh rows are intercalated. Base flattened, oi-namented by eight 

 narrow-spaced spiral riblets, broken into fine close-packed granules. 

 Umbilicus a quarter of the diameter of the base, deep and steep, 

 margined by a row of small tubercles. Aperture simple, rhom- 

 boidal. Columella margin a little reflected, inserted on the' um- 

 bilical bead-row. Height, 2-6 mm. ; maj. diam., 3-2 mm,: min. 

 diam., 2 -75 mm. 



A single specimen, apparently not adult, was collected. Like 

 several other Aside it resembles Basilissn, to which, when perfect 

 examples arrive, it may have to be transferred. The peculiar 

 sculpture will, at any rate, serve to distinguish the species in any 

 stasi'e of lii'owth. 



Fi^. 13. 

 Asle/e hilix. 



LlOTIA ALAZON, Sjy. ttOV. 



(Fig. U). 



Shell minute, solid, turbinate, elevate, tricarinate, descending at 

 the aperture, narrowly umbilicate. Surface smooth and glossy. 



Colour, porcelain white. Wliorls 

 three, the first a protoconch. Sculp- 

 ture, of three projecting lamellate 

 keels revolving from the protoconch 

 to the aperture. The third keel of the 

 penultimate whorl is half covered 

 by the suture of the following whorl. 

 From the first keel, which runs 

 along the shoulder, a nearly flat 

 shelf extends to the suture. From 

 the first to the third keel the side of 

 the shell is nearly perpendicular. 



Fig. 14. 

 Liotia alazon. 



