MITRA lyroeformis. 

 Harp Mitre, 



Generic Character. — See PI. 28. 



Specific Character. 



M. testa costis regularibus, carinatis, approximantibus: columella striata, juxta 

 basin tripUcatd: spird suhattenuata ; apice subpapillosd. 



Shell with regular, carinated, approximating, longitudinal ribs. Pillar 

 striated, three-plaited near the base. Spire .somewhat attenuated. 

 Apex slightly papillary. 



This beautiful and highly interesting shell has been generally 

 considered unique among the collections in this country. It was 

 originally in the possession of the late Mr. Jennings, and, I am 

 informed by Captain Laskey, was on first being received, in a 

 much finer state. Mr. Jennings had it cleaned, and in so doing 

 many of the delicate transverse strias were partially obliterated, 

 and the sharp ridges on the longitudinal ribs worn down, as in- 

 deed was apparent from a drawing Captain L. had made of the 

 shell previous to this unmerciful cleaning. It however still re- 

 mains a very fine shell, and is now in the cabinet of Mrs. Bol- 

 ton, of Storr's-hull, to whom I am obliged for the opportunity of 

 now publishing it. 



The figure and specific character will sufficiently point out 

 its distinctions. The body-whorl is smooth, but strongly gra- 

 nulated at the base ; the spire delicately striated between the 

 ribs; the two last whorls before the apex are close, thick, and 

 somewhat papillary ; the apex itself small and sharp. The upper 

 part of the inner lip has some faint obsolete teeth, but the base 

 has three very strong ones. 



It connects in the most beautiful manner the two genera of 

 Milra and Voluta. Its country is unknown. 

 PL 54. 



