CYMBIUM. 
Puate X. 
Species 4. (Hig. 5 6, Mus. Brit.) 
The accompanying figure is a front view of the specimen 
represented in the preceding Plate, the type of Mr. Bro- 
derip’s Melo umbilicatus, and it will be observed by the 
numbering that I at first regarded it as a species dis- 
tinct from Cymbium ducale. Notwithstanding its slenderly 
oblong form and slight texture as compared with the 
heavy rounded specimen figured at Plate VII. (and there 
is even a larger and thicker specimen than this in the 
British Museum), the species is the same. ‘The detail of 
painting, of scales, and of structure throughout is the 
same in both, and the smaller specimens represented at 
Plate VIII. Fig. 4 6, c, help to show the connection 
between them. 
December, 1860. 
