MITRA. in 



figure is from Gould's type, and I can add nothing to the above 

 meagre information concerning this curious form. 



M. Desetangsii, Kiener. PI. 34, fig. 34. 



More ventricose and thicker than M. variegata^ less strongly 

 cancellated on the upper portion of the two last whorls ; with 

 three zones of spots upon the last whorl, one of them sutural, 

 and the other two separated by a wide very light reddish-brown 

 band. Length, 29 mill. 



Mauritius. 



Kiener's description and my figure (copied) are from a dead 

 and bleached specimen. Lienard gives the above particulai's of 

 coloration, and acknowledges its close relationship to M.variegata 

 — from which, nevertheless he distinguishes it. 



M. CANCELLATA, Kiener. PI. 34, fig. 36. 



Whitish, cancellated and pitted. Length, 1*3 inches. 



Habitat unknown. 



This shell has been overlooked b}' subsequent monographers ; 

 I can make nothing out of it ; it is evidently in bad condition, 

 and only a single specimen is known, in the Massena Collection. 

 There is a M. cancellaia, Swainson, a very different species. 



M. Hamillei, Petit. PL 34, fig. 37. 



Brown, marbled and tinted with chestnut and olivaceous, 

 finely cancellated by revolving incised lines and close growth- 

 lines. Length, 1*5 inches. 



Cape Verd Islands. 



Distinguished by its compressed cylindrical form. A species 

 from Moreton Bay sent to the Philadelphia Academy as 31. 

 cylindrical Reeve, by Dr. J. C. Cox, of Sydnej^, N. S. W., 

 appears to be identical with the above. 



M. Senegalensis, Reeve. PI. 34, fig. 38. 



Livid olive, longitudinally ornamented with a very few white 



flames ; aperture livid chestnut. Length, 1-3 inches. 



Senegal. 



M. glabra, Swainson. PL 34, fig. 42. 



Smooth, polished, with slight incised revolving lines ; base 



truncated and a little recurved. Orange-red, encircled by fine 



