APPENDIX. 311 
Mirra Levis? Dubois. Wolhyn. Pod.,t. 1, figs. 2,3. Fide Phil. 
— Derrancrr. Payr. Cat. Moll. Cors., p. 166, t. 8, fig. 22. 
— cornicuLa. Sismond. Syn. Meth. an. Invert. Ped. Foss., p. 41. 
VotuTa PricatuLa. Brocchi. pp. 318 and 646, t. 4, fig. 7. 
— cornicuta. Linn. Syst. Nat., ed. 11, p. 1191. 
Spec. Char. Testd turritd, sublevigatd, aut obsolete costatd ; anfractibus convexiusculis ; aperturd 
spiram equante ; columella triplicatd sive quadruplicatd. 
Shell turreted, nearly smooth, with obsolete ribs; whorls slightly convex; aperture the length of 
the spire; columella with three or perhaps four folds. 
Length. inch. 
Locality. Cor. Crag, Gedgrave. Recent, Mediterranean. Fossil, Apulia and Piedmont. 
A single specimen of this genus has been obligingly presented to me by Mr. Charlesworth, and this 
is the only one I have seen. It is not quite perfect, the outer lip being slightly broken, but it is otherwise 
in good condition ; and there is every reasonable probability of its belonging to one of the variable forms of 
ebenus. It most resembles the variety with the upper volutions somewhat obscurely costated, having the 
body one smooth. My specimen has seven volutions, and three distinct folds upon the columella; the 
upper two folds large and distant, the third smaller and closer, with a very minute one lower down, perhaps 
invisible if the lip were perfect. There is a slightly depressed mark around the upper part of the volution, 
and, in the living state, probably corresponded with Philippi’s description, ‘‘infra suturas linea albida 
obscure cinctis.” : 
A specimen of Mitra is mentioned, in the ‘ Mem. of the Geol. Survey,’ vol. i, p. 429, as having been 
found in the Glacial Beds of Wexford, and referred to M. cornea, Lamk., with doubt, 
Mirra prictrera. S. Wood. Crag Moll., vol. i, p. 21, t. XXXI, fig. 8. 
Not haying been able to obtain anything more perfect than what have been so long in my cabinet, I 
have had my best specimen figured, in order to call attention to its existence in the Coralline Crag. It 
appears too strongly costated to be a variety of ebenus, and the apex is more obtuse than in that species. It 
must, therefore, remain for the present with its provisional name. 
Pyrua acciinis, S. Wood. Tab. XXXI, fig, 6, a, b. 
PYRULA RETICULATA, Lam., vide. Crag Moll., vol. i, p. 42, t. 2, fig. 12. 
A better knowledge of the various recent shells of this genus give reason to believe the differences 
previously pointed out between the fossil and the recent species, to which it was assigned, are sufficient to 
entitle it to specific distinction ; I therefore propose for the Crag shell the above name. 
Edward Acton, Esq., of Grundisburgh, has, out of his rich collection, presented me with a cast in sand- 
stone of what most probably was this species, obtained from the Red Crag of Sutton, which appears to 
present a still greater difference from the recent re¢iculata than do either of my own specimens, from which 
the assignment had previously been made. This cast (fig. 6, @) shows a greater elevation of spire than 
either the recent shell or my own fossils, which might perhaps be expected; but the excess in height is 
more than would arise simply from its being a cast, and it shows also more particularly that the shell from 
which it was taken had a shorter canal than the true reticulata: the latter character is, I think, 
sufficient to separate our fossil from the existing species, and I am the more readily induced on that account 
to change the name previously given. 
This is in a sandstone nodule, similar to what has been spoken of at p. 69, and the cavity left by 
the withdrawal of the shell is imperfectly filled by carbonate of lime in a crystallized state, the crystals 
