Halgerda Batangas Nudibranch, Sekotong, Indonesia

We saw this Halgerda Batangas Nudibranch while diving Deep Water Corner near Sekotong, Indonesia. The name nudibranch translates roughly from Latin as "naked lung" or in this instance "naked gills." A name given to these creatures because they shed their shell following their larval stage, leaving their gills exposed. Read more about diving in Sukoton in our post, A Scuba Divers Guide to Lombok, Indonesia.