CONUS. 63 



band ; sculptured all over with rows of minute, close-set, oblong 

 punctures, more numerous and distinct towards the base, which 

 is encircled by a number of narrow elevated ridges ; spire striate. 



Length, 20 mill. 



Port Jackson, Australia. 



Described by Angas as C. Mrtcalfei, a name preoccupied by 

 Reeve. 



C. INTERRUPTUS, Brod. PL 27, fig. 8 ; PL 19, figs. 100-2 ; PL 20, 

 figs. 3-5, 21. 



Shell long and narrow, with smooth elevated spire, body-whorl 

 striate towards the base, the striae sometimes minutely granular; 

 whitish, largely covered by longitudinal chocolate clouds, encir- 

 cled b} r numerous lines of minute chestnut spots; spire nearly 

 covered by chestnut or chocolate flammules. 



Length, 1-5-2-25 inches. 

 West Coast of Central America to Mazatlan, Cape St. Lucas. 



Occasional^ the entire body-whorl is covered with impressed 

 or raised striae, the latter smooth or granular. There are a 

 number of synonyms, none of them differing much from the 

 typical shells. These are C. mahogani, Reeve (figs. 1, 2), 

 C. Ximenes, Gray (fig. 100), C. monilifer, Brod. (fig. 3), C. tor- 

 natus, Brod. (fig. 4), C. Pliilippii, Kiener (fig. 5). 



C. arcuatus, Brod. and Sowb., although differing much in form, 

 is still possibly an extreme variety of this species ; and I am 

 inclined to refer here also C. catenatus, Sowb. (fig. 21). 



Section XII. ACHATINI. 



Chelyconus, Morch. 

 C. CATUS, Hwass. PL 20, figs. 6-10. 



Shell bulb.ous, with convex, striate spire ; bodj'-whorl striate, 



the striae rounded, usually obsolete above, granular below, olive, 



chestnut-, chocolate- or pink-brown, variously marbled and 



flecked with white, often faintly white-banded below the middle. 



Length, 1-25-1-75 inches. 



Red Sea, Mauritius, Java, China, 



New Caledonia, Polynesia. 



C. eques, Brug. (fig. 10), is probably a synonym; the species 

 is only known by the figure of which I give a copy. 



