2G2 DO LIU M. 



which appears to be the usual fresh state of the species. 

 Klister's earlier diagnosis was prepared from a faded or varietal 

 form in which the maculations have disappeared or are but 

 feebly shown. One of the figures (t. 63, f. 1) given by Kiister 

 for D. variegatum, appears to represent this species ; which is 

 certainly very closely allied to D. melanostoma. 



D. VARIEGATUM, Lam. PL 3, figs. 13, 14. 



Umbilicated, whorls 7, the last bearing fifteen to eighteen 

 spiral ribs, the interstices nearly as wide, the upper ones bearing 

 an intermediate smaller rib ; whitish, maculated with chestnut 

 on the ribs, often with one or two ribs more yellowish in color, 

 upon which there are no maculations. Spire more elevated, and 

 suture less impressed than in the preceding species. 



Length, 4-9 inches. North Australia . 



D. Kieneri, Phil.,. is a synonym. 



Var. CHINENSE, Dillwyn. Fig. 14. 



Smaller, of lighter structure and more contracted growth, 

 most of the interstices of the eighteen to twenty ribs bearing a 

 smaller rib. Fine specimens are usually alternately banded 

 spirally with light yellow and whitish, the ribs of the latter only 

 showing chestnut maculations. 



China. 



This is D. australe of Morch. 



D. OLEARIUM, Brug. PL 2, figs. 8-11. 



Spirally broadly ribbed, with very narrow, shallow interstices ; 

 fulvous chestnut maculated with white ; suture deep. 



Length, 3-5 inches. 



Indian Ocean, Philippim'*. 



A very frequent state of this species has the surface worn so 

 that the grooves are indicated more by darker spiral lines than 

 by their very shallow depression. 



Var. CUMINGII, Hanley. PL 2, fig. 9. 



Kibs more numerous and, with the groove, more distinct, 

 whorls not so deep-sutured . maculations interrupted with spiral, 

 longitudinally linivated bands. 



Philippines. 

 Var. DESHAYESII, Reeve. PI. i>. fig. 10. 



Suture slightly impressed; pale fulvous chestnut, painted 



