In regards to the Rissoidae, you might want to check out the page
below.  It links to the Med. Rissoidea catalog with 145 drawings.
 
Bill F.
 
http://www.geocities.com/CapeCanaveral/2208/
 
 
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M8V]M+T-A<&5#86YA=F5R86PO,C(P."\-"DUO9&EF:65D/44P-$1&,3DX0C0T
)0D)%,#$W- T*
`
end