212 EBURNA. 



E. AREOLATA, Lam. PL 82, fig. 416 ; PL 83, fig. 525. 



Shell thinner than E. lutosa, with shoulder more marked and 

 slightly channelled ; umbilicus wider, open ; same pattern of 

 markings as E. lutosa, but color much darker, blotches more 

 regular, quadrangular, the three revolving series more widely 

 separated by intervening white spaces. 



Length, 2-25-3-5 inches. 



Ceylon ; China Sea, 14 fathoms. 



E. spirata, Linn., included this species, as well as the one which 

 now bears that name. Lamarck separated and defined the two 

 forms. 



E. SPIRATA, Lam. PL 82, figs. 466-468 ; PL 84, fig. 526. 



Shoulder sharp-edged, deeply channelled ; umbilicus narrow, 

 perforated or closed ; epidermis frequently adhering, dark brown ; 

 coloring a well-defined series of blotches superiorly, below which 

 are numerous, rather large transverse or oblique oval spots ; 

 some of the latter frequently become confluent into an inferior 

 revolving series of irregular or cuneiform markings. 



Length, 2-3 inches. 



f'ct/J.n/) ; Philippines. 



E. CHRYSOSTOMA, Sowb. PL 82, fig. 469. 



The blotches and spots are both smaller and more numerous 

 than in E. spirata, the form is more oval, the coloring brighter, 



including a carneous aperture and columelln. 



Ceylon. 



I separate this from E. spirata with some hesitation. Sowerby 

 considers his Fig. 3 of E. spirata to represent this species ; it has 

 the coloration, but the form and markings are of the charcteristic 

 spirata pattern. Perhaps it would be better reo-arded as a 

 varietj r of spirata. 



E. BORNEENSIS, Sowb. PL 82, fig. 464. 



Spots large, dark chestnut, distributed over the surface with 

 no arrangement into revolving series. Length, 2 inches. 



Borneo. 



Peculiar in the coloring and leopard-like arrangement of the 

 spots. 



