11 
MUREX Swmithii. 
TAB. DLXXVIII.—/ig. 1. 2. & 3. 
Spec. Cuar. Pyriform, transversely striated, fur- 
nished with three rows of short tubercles, those 
of the upper row largest, pointed ; beak 
elongated, straight ; upper parts of the whorls 
flattened. 
Var. 8. spire produced: fig. 3. 
———EEE ee 
‘Tue spire being very short, the last whorl very large, 
and the beak much produced, give the pear-like form to 
this shell: two rows of the tubercles are wholly conceal- 
ed within the last whorl. When the shell is removed 
from the stone, the cast of the spire appears longer, and 
in var. £. it is so much produced as to show the middle 
row of tubercles. 
The beautiful specimen represented at figs. 1. and 2. 
is nearly covered by a Flustra: it was collected in Alum 
Bay, Isle of Wight, by Gerrard E. Smith, Esq., whose 
zeal we wish to commemorate by naming it after him. 
The variety fig. 3. is a cast found at Maida Hill, Pad- 
dington : it is in the collection of G, A. Mantell, Esgq., 
who also possesses a cast of the first variety imbedded 
in part of a Septarium from Bognor. It seems to be a 
rare London Clay shell, as we know of no other speci- 
mens. 
