Cruz, Rafael A, and Carlos R Villalobos. 1993. “Monthly Changes in Tissue Weight and Biochemical Composition of the Musel <i>Mytella guyanensis</i≫ (Bivalvia: Mytilidae) in Costa Rica”. Revista De Biología Tropical 41 (1):93–96. https://revistas.ucr.ac.cr/index.php/rbt/article/view/23312.