Thanks Harry,
Although I cannot say that this is what happens in this particular case,
usually the strong yellow, orange, and red pigments in eggs is caused simply
by the presence of yolk, or the nutritive reserves that feed the embryo and
early larval stages in mollusks (and in other groups of organisms). And yes,
Amy Tripp is an extremely keen field worker, and her exceptional photos of
live mollusks can be enjoyed in the SW Florida Shells section of the Shell
Museum web site and, sporadically, in the Museum Facebook "page"
Cheers,
José
José H. Leal, Ph.D., Director and Curator
The Bailey-Matthews Shell Museum
Editor, The Nautilus
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From: Conchologists List [mailto:[log in to unmask]] On Behalf Of
Harry G. Lee
Sent: Wednesday, February 22, 2012 6:02 PM
To: [log in to unmask]
Subject: Re: [CONCH-L] Egg Capsule IDs?
Thanks, José.
I think I see that same reddish coloration as in the unknown within one of
the E. sulcidentata capsules on BMSM webfeature at the URL you provided.
Hemoglobin and myoglobin are found an a phylogenetically diverse assortment
of animals; I wonder if that's the pigment involved here.
Speaking of Amy; here is an early version of work she initiated:
<http://www.jaxshells.org/kice.htm> <http://www.jaxshells.org/kice.htm> .
Harry
On 2/22/2012 5:48 PM, José H. Leal wrote:
Thanks Harry,
The closest species here would be (I believe)
http://shellmuseum.org/shells/shelldetails.cfm?id=73
Cheers
José H. Leal, Ph.D., Director and Curator
The Bailey-Matthews Shell Museum
Editor, The Nautilus
[log in to unmask]
www.shellmuseum.org <http://www.shellmuseum.org/>
3075 Sanibel-Captiva Road
Sanibel, FL 33957 USA
(239)395-2233
fax (239)395-6706
P Please consider the environment before printing this e-mail
From: Conchologists List [mailto:[log in to unmask]] On Behalf Of
Harry G. Lee
Sent: Wednesday, February 22, 2012 5:23 PM
To: [log in to unmask]
Subject: Re: [CONCH-L] Egg Capsule IDs?
While it cannot be the actual species responsible for egg capsule-on-egg
capsule deposition, Eupleura caudata has a similar habit and egg capsule
morphology; see
<http://www.jaxshells.org/828pp.htm> <http://www.jaxshells.org/828pp.htm> .
Harry
On 2/22/2012 4:09 PM, José H. Leal wrote:
I just posted a great image of gastropod egg capsules shot by friend and
Conch-L member Amy Tripp on Kice Island yesterday. Amy is frequent
contributor to the Museum's "SW Florida Shells" online resource. The
pictures are in the Shell Museum's Facebook "page" and in the Museum web
site at http://shellmuseum.org/shells/shelldetails.cfm?id=89
The image comprises a few egg capsules of the local horse conch, on which
were deposited smaller capsules, presumed (by me, in case this is not true)
to belong to another species of gastropod. Any suggestions?
Happy Shelling,
José
José H. Leal, Ph.D., Director and Curator
The Bailey-Matthews Shell Museum
Editor, The Nautilus
[log in to unmask]
www.shellmuseum.org <http://www.shellmuseum.org/>
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Sanibel, FL 33957 USA
(239)395-2233
fax (239)395-6706
P Please consider the environment before printing this e-mail
--
Harry G. Lee MD
4132 Ortega Forest Drive
Jacksonville, FL 32210-5813
USA
(904) 389 4049
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Harry G. Lee MD
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(904) 389 4049
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