MITRA contracta. 

 Contracted Miti'e — upper figure. 



Generic Character. — Fl. 



Specific Character. 

 M. (Div.Z.) testa siiblavi; marg'me super iure anfradimm prominente, an- 

 fractu basal i in medio contracto 



Shell nearly smooth; upper margin of the volutions prominent; basal 

 whorl contracted in the middle. 



An undescribed species, for the loan of which I am indebted 

 to Mr. G. Humphrey, of Leicester-street, whose knowledge as 

 a collector, and integrity as a dealer, have gained him respect and 

 confidence through a lono- life: and it is no less singular than true, 

 that many genera of modern authors, now universally adopted, 

 were formed by him near twenty-five years ago (under different 

 names) in the Museum Cahmiduum, printed in 1797. 



Shell one inch and a half long, and smooth ; the base and spire 

 with faint remote grooves ; the spiral whorls are scarcely convex, 

 and their upper margins prominent. Outer lip thick, effuse, 

 slightly reflected below, and contracted above. Pillar five- 

 plaited ; colour yellowish white, with two or three waved longi- 

 tudinal bands of orange, and a few others broad and remote on 

 the spire. A finer specimen I have since seen with Mr. Hum- 

 phrey's was one inch three quarters long, the ground-colour 

 pure white, the aperture orange, and the bands rich orange- 

 chesnut. 

 PI. 18. 



