Location: Romblon Island
Depth: shallow / medium depth
Cover Photo: Christophe Kazmierski
Scientific Name: Cyerce katiae K. Moreno, Gosliner, N. G. Wilson, Krug & Á. Valdés, 2025 (before known as Cyerce sp. 4 (NSSI2)
Cyerce katiae: A Beautiful Tribute to Marine Conservation
Cyerce katiae is one of the most recently described species of butterfly seaslugs, belonging to the fascinating family Caliphyllidae within the order Sacoglossa. This elegant marine gastropod represents a remarkable example of how dedicated marine conservation efforts can lead to significant scientific discoveries.
A Species with Special Significance
What makes Cyerce katiae particularly special to our diving resort in Romblon is its namesake – this beautiful seaslug was named after Kati Eschweiler, one of the resort owners. The scientific naming represents not only a recognition of her contributions to marine conservation and education but also highlights the important role that dive resorts and marine enthusiasts play in advancing our understanding of ocean biodiversity.
Characteristics and Identification
Like other members of the Cyerce genus, C. katiae displays the characteristic butterfly-like cerata (finger-like projections) that give these seaslugs their common name.
The species exhibits the typical sacoglossan lifestyle, using its specialized radula (feeding apparatus) to pierce algal cells and suck out their contents.
Habitat and Distribution
Cyerce katiae has been documented in Indo-Pacific waters, particularly in the waters around Romblon, where it inhabits coral reef environments and seagrass beds. For underwater photography enthusiasts, locating and capturing images of this species requires patience and keen observation skills, as their small size and excellent camouflage make them challenging subjects.
Conservation and Research Importance
The description of Cyerce katiae underscores the incredible biodiversity that exists in our marine environments and the importance of continued research and conservation efforts. Every newly described species adds to our understanding of marine ecosystems and highlights how much we still have to learn about the ocean’s inhabitants.
For scuba diving enthusiasts and underwater photography specialists visiting our diving resort in Romblon, spotting Cyerce katiae represents not just an exciting wildlife encounter, but a connection to the ongoing scientific work that helps protect these remarkable creatures and their habitats for future generations. The clear waters around Romblon provide excellent visibility for macro photography, making it an ideal location for capturing detailed images of these delicate seaslugs.




















