Simnia avena (G. B. Sowerby I 1833)

Description: Español: Simnia avena (sinonimia: Delonovolva aequalis) en isla Santa Catalina, EE.UU. Date: 1 November 2006, 05:56:39. Source: http://www.sanctuarysimon.org/photos/photo_download.php?photoID=4669&image=SIL_111797_0037.jpg&search=gs&speciesSearchTerm=&keywordSearchTerm=&locationSearch=&s=4400&page=221. Author: Steve Lonhart / NOAA MBNMS.

Description: Español: Simnia avena. Date: 1 November 2006, 13:56:40. Source: http://www.sanctuarysimon.org/photos/photo_info.php?photoID=4670&search=gs&s=4400&page=221. Author: Steve Lonhart / NOAA MBNMS.