Paul R. Monfils wrote:
>
> Astraea (Astralium) kesteveni Iredale is not the same as Astraea (Astralium)
> stellare (Gmelin).  A. kesteveni is actually a synonym for A. squamiferum
> (Koch).  It is a smaller shell than A. stellare, more depressed, with less
> pronounced sculpture.  The operculum is white, not bright blue as in A.
> stellare.
> Cantharus assimilis (Reeve) is a small species from west Africa.  It is also
> found in the Canary Islands.  It is usually dark-colored, with a single row of
> white nodules around the shoulder, and reaches about 15 mm.
> I never saw a land snail with spines approaching those of Guildfordia; however
> there is a genus of land snails, Priotrochatella, which are commonly known as
> star shells.  They are depressed in shape like Guildfordia, and they do have
> spines around the periphery, but the spines are much more numerous and much
> shorter than those of Guildfordia.  It's actually more of a "saw-toothed"
> effect than real spines.  These shells are about 1 to 1.5 cm in diameter.
> Regards,
> Paul Monfils
> Rhode Island, U.S.A.
 
 
Thanks, Paul, is a very complete information.
 
I4m shure will be very useful to my collection.
 
A warm regard from Mexico City
Jorge Mendez