The most important (and recent) information on this species is by Houbrick
in Malacologia vol. 35 (1993).
The genus is Bittiolum, not Bittium or Diastoma (the latter quite
unrelated). The type of protoconch suggest planktotrophy (but it could be
lecitotrophic).

Cheers,

Marien Faber


----- Original Message -----
From: "Ryan moody" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Friday, June 11, 2004 11:44 PM
Subject: Bittium and Diastoma


> Hello!
> Can anyone tell me about reproduction in Diastoma (formerly Bittium)
varium
> in particular or the group in general? I specifically want to know if they
> have a planktonic larvae...if so, is it lecithotrophic or planktotrophic?
>
> Thank you!
>
> Ryan
>
>
>
>
> ~~~~~~~~~~~~~~~~~~~~~
> Ryan M. Moody
> Dauphin Island Sea Lab
> 101 Bienville Boulevard
> Dauphin Island, AL 36528
> (251) 861-7532
> (251) 861-7540 (fax)
> ~~~~~~~~~~~~~~~~~~~~~
>
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