There are places in my locality where there are hundreds of Urosalpinx
cinerea on the intertidal rocks, so I can be selective, picking out full
grown mature specimens.  These generally range from 26 to 28 mm, but
occasionally larger.  Interestingly, Abbott's American Seashells lists the
size range of the species as 1/2 to 1 inch (13-25 mm).


On 9/2/12 2:19 PM, "Eddy WILMET" <[log in to unmask]> wrote:

> Last week I've been collecting Urosalpinx cinerea in the Oosterschelde-
> delta in the Netherlands where it's invasive, together with Ocinebrellus
> inornatus (which is almost a 200km expansion for this species to the North
> as normally its habitat is French-Brittany, Atlantic Coast)
> The presence of the Urosalpinx cinerea is overwhelming with large
> specimens over 25/30 mm. Can anyone give me some considerations about the
> growing rate of this species and maximum sizes of the American specimens.
> Thanks,
> Eddy.
>
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