180 PROCEEDINGS OF THE MALACOLOGICAL SOCIETY. 



Cassidea royana, n.sp. 



Shell large, rather solid, smootli, very broadly ovate. Colour fawu 

 and fawnish-white with broad spiral bands of darker colour, probably 

 deep chocolate in fresh specimens. lu the worn specimen described 

 four bands can be distinguished on the last whorl, though all are 

 only obscurely seen, and all placed below the noduled shoulder. 

 On the outer lip, which is rolled backwards, these are more clearly 

 marked, whilst a lifth is seen just above the shoulder. Whorls, 

 three only remain, the apex being missing. No spiral sculpture can 

 be discerned, but on the last whorl, which is strongly shouldered, 

 twelve prominent regularly spaced nodules can be counted. No trace 

 of these appears above the shoulder, but below they more or less 

 develop into broad longitudinal ridges, much more distinct on the 

 back than on the face of the shell. On the penultimate sixteen more 

 obscurely marked nodules can be counted, whilst on the ante- 

 penultimate whorl, though still present, the shell is too worn to admit 

 of the recognition of the separate nodules. Outer lip expanded and 

 reflected backwards, though a narrow deep canal intervenes between 

 the inrolled outer lip and the whorl itself. Columella smooth, with 

 one marked plication. Inner lip expanded as a callus, and at the 

 anterior extremity reflected, so as to leave a minute perforation. 

 Canal short, bi'oad, little recurved. Length 135, breadth 95 mm. 



Hah. — Sunday Island, Kermadec Group. 



Type to be presented to the Canterbury Museum, Christchurch, 

 New Zealand. 



With this magnificent shell, which needs comparison with none 

 yet described, I associate the name of my friend Mr. Roy Bell, to 

 still further mark my gratitude for his ever - ready help in 

 investigating the molluscan fauna of the Kermadec Group. 



