Ethalia catharinae Poppe, Tagaro, and Dekkers, 2006

    This snail is pictured on page 267 of Reef Creature Identification Tropical Pacific (Paul Humann and Ned Deloach, 2010) and identified as Heliacus variegatus (Variegated Sundial). However, shell/live animal review indicates that the snail is in the family Trocohidea vice Architectonicidae.

Ethalia catharinae Poppe, Tagaro, and Dekkers, 2006

    Photographed by Linda Ianniello while SCUBA diving at Anilao, Mabini, Batangas, Philippines. Underwater photograph copyright 2011 by Linda Ianniello. This species is notorious as it is one of the few Trochids that can literally swim for several meters (Guido Poppe, personal communication, 19 September, 2014).