Looks like a muricid egg mass, very similar to Stramonita haemastoma; thjis
species however usually has purple-tinged egg cases due to the color of the
intracapsular liquid.

http://www.jaxshells.org/mcegg3.htm and
http://shellmuseum.org/shells/shelldetails.cfm?id=76 

José H. Leal, Ph.D., Director and Curator  
The Bailey-Matthews Shell Museum
Editor, The Nautilus
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www.shellmuseum.org <http://www.shellmuseum.org/>

                                                
3075 Sanibel-Captiva Road
Sanibel, FL 33957 USA
(239)395-2233
fax (239)395-6706

 
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From: Conchologists List [mailto:[log in to unmask]] On Behalf Of
Linda Brunner
Sent: Thursday, July 26, 2012 3:05 PM
To: [log in to unmask]
Subject: [CONCH-L] Egg cases

Can anyone ID these from the Gulf of Mexico off Panama City, FL.

Thanks,

Linda

 
https://picasaweb.google.com/lh/photo/fFsR2ka9_984e3GpK2vrZ9MTjNZETYmyPJy0li
ipFm0?feat=directlink

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