Needed for research... the only juvenile known from either of these
two families is a single specimen of Humphreyia  strangei. Juveniles
will be up to adult size but with articulating valves covering only a
tiny portion of the anterodorsal surface of the body (older
penicillid juveniles will have a "saddle" secreted around the valves,
fixing them at 120-180 degrees). In some species the body will be
covered by a periostracal layer. They will be nestling in rock or
coral crevices/borings or in sand/mud, depending on the species.
--
Andrew Grebneff
Dunedin
New Zealand
Fossil preparator
Seashell, Macintosh, VW/Toyota van nut
‚ Opinions stated are mine, not those of Otago University
"There is water at the bottom of the ocean"  - Talking Heads

----------------------------------------------------------------------
[log in to unmask] - a forum for informal discussions on molluscs
To leave this list, click on the following web link:
http://listserv.uga.edu/cgi-bin/wa?SUBED1=conch-l&A=1
Type your email address and name in the appropriate box and
click leave the list.
----------------------------------------------------------------------