South Africa - July 26, 2024

A groundbreaking discovery has emerged from the depths of South Africa’s western coast: a new species of galeommatoidean bivalves found nestled within the region's vibrant kelp forests. Led by Paul Valentich-Scott from the Santa Barbara Museum of Natural History, in collaboration with researchers from the University of Cape Town, Sea Change Trust, Stellenbosch University, and the University of Colorado Boulder, the study delves into the intricate ecosystems and taxonomy of these enigmatic marine mollusks.

Published in the esteemed journal ZooKeys, the research highlights four species of galeommatoidean bivalves unearthed from South Africa's Western Cape. Of particular intrigue is Brachiomya ducentiunus, a diminutive clam measuring a mere 2 mm (less than 1/8th inch) in length. This newly identified species has been exclusively spotted in False Bay, attached to the burrowing sea urchin Spatagobrissus mirabilis amidst coarse gravel at a depth of approximately 3 meters.

Valentich-Scott underscores the significance of this find: "This discovery enhances our understanding of galeommatoidean bivalve diversity and their ecological roles. By revealing the hidden behaviors of these small yet ecologically vital organisms, we aim to bolster marine biodiversity knowledge and advance conservation efforts for these unique habitats."

Co-author Charles L. Griffiths, emeritus professor at the University of Cape Town, emphasizes the ongoing exploration of South Africa's marine biodiversity, noting the frequent discovery of new species in specialized habitats.

Jannes Landschoff, marine biologist at the Sea Change Trust, echoes this sentiment: "Building foundational knowledge about biodiversity is crucial for appreciating the immense diversity of coastal ecosystems like the 'Great African Seaforest' off Cape Town."