lO.Mi.IN : SIX NKW MARINK SHELLS KRO.M SOUTH AFRICA. 217 



beaded spiml ridges on tlie last whorl, nine on the penultimate and 

 eight on the antepenultimate, and every third ridge is noticeably 

 spotted at intervals with black, each spot covering from one to three 

 beads ; the last six or seven ridges on the base and usually the ridge 

 below the suture are much broader, with flattened oblong sculpture 

 instead of beading ; interstices with close oblique cross striation ; 

 sutures well marked : umbilicus small but deep, with four or five 

 sharply acute axial ridges round its mouth ; armature of aperture 

 similar to that of C. corallunis. 



Diam. max., 17 mnh ; alt., 12 '5 mm. 



Habitat, Durban (McClelland and others). 



Type, in coll. Tomlin. 



This shell must, I think, be what has been several times recorded 

 as C. kraussi Phil. The latter was described from unknown locality, 

 but has since been recognised as a West African shell, of which I 

 possess a series from S. Thome Island. It is small and conical, akin 

 to the Mediterranean cruciatus L. as Fischer says, but both he and 

 Pilsbry give the dimensions far too large ; thus they give the maxi- 

 mum diameter as 19 mm., while Philippi in his original description 

 gives it as about 9*5. C. atricatena is more of the build of guine- 

 ensis Gmel. 



Natica aureozona nov. sp. PI. VIII, fig. 3, 4. 



Shell small, white, polished, with a broad golden band of colour 

 on the body-whorl, just above the periphery, and another, more or 

 less interrupted, immediately below the suture ; the apical whorls are 

 of the same colour, and there is a spot likewise on the umbilical 

 callus. The umbilicus is completely closed; whorls 4A in number; 

 spire very short ; aperture white and pear-shaped. 



Diam. max., 6 mm. ; altitude, 6 mm. Aperture 3 mm. in length. 

 Breadth of peripheral colour band, i mm. 



Habitat, Port Alfred (Turton). 



Type in coll. Turton, Oxford University Museum. 



This species, while not possessing any very striking characteristics, 

 appears to be undescribed. In general appearance it is not very 

 unlike decipiens Smith, but is imperforate, rather less conical, has a 

 longer body-whorl, and different colouration. 



