ROSTELLARIA Parkinsoni. 
TAB. DLVIII.— -fig. 3. 
Spec. Char. Turreted, striated, costated ; last whorl 
costated and obscurely carinated ; lip expanded 
and furnished with one styloid process ; costae 
numerous. 
Syn. Rostellaria, having only one spur-like process. 
Parkinson , Org. Rem. 3. 63. lab . b.f 1 1. 
Rostellaria Parkinsoni. Mantell , Geology of 
Sussex , p. 72j 82, & 108. 
The length of the costae upon the last whorl, and the 
single spur-like process, are the essential characters of 
this shell. The former seems to distinguish it from the 
London Clay species given under the same name at 
tab. 349 ; but so great is their resemblance, that, with 
only imperfect specimens before us, we still remain in 
doubt. 
The late sale of Mr. Parkinson’s collection has enabled 
us to give figures of the type of this species. The upper 
specimen is from Blackdown, the other from near Faver- 
sliam. 
We have seen two other species from the Greensand : 
one with four smooth carinae and a very long beak 
(R. carinata, Mantell ?), another with the lip resembling 
that of the Pes-Pelicani ; but the specimens are much 
too indistinct for figuring. 
The Syn. 66 S. Pes-Pelicani Brocchi,” must be erased 
from p. 66 of vol. iv. ; as indeed ail the synonyms per- 
haps ought to be, and even a new name given. 
