🌊 SURF 'N TURF 🏝️ -THE BITCOIN ISLAND LIFE- Marine Life in The Philippines & Southeast Asia. Number 21: Toad Shells. https://image.nostr.build/a9118e0f9981b673bd8c73915607fa402377f9d7fef1da404c7f2cfe367c1005.jpg The Bursidae, common name "frog snails" or "frog shells", are a small taxonomic family of large sea snails, marine gastropod predatory snails in the clade Littorinimorpha. https://image.nostr.build/314e5d938f58ebd47aa6990ebdbb259d82e76bb2f83cb2d38e66563e638d96b3.jpg Distribution Most species in this family occur on rocks or coral reefs in shallow waters of tropical oceans, including the Indo-Pacific, the Caribbean Sea, and other marginal warm seas, but they are also found in the Atlantic Ocean and the Mediterranean Sea. Only a few are found on sandy bottoms of deeper waters of the continental shelf. https://image.nostr.build/32696682a06464b3c859b248ddc3afd5e81ac8f7cecbdd013d305ca0849421d9.jpg Shell description The thick, ovate to slightly elongated shells are coarsely sculptured, resembling the triton shells of the Ranellidae. The intersection of the spiral ribs and the axial sculpture results in a strong nodulose pattern of more or less round knobs. https://image.nostr.build/b4679a2a925facba9eca52b1a2b8d649bff4b3b27db4023633de1c6b10288147.jpg This warty surface gave them their common name - frog shells. The outer varicose lip is dilated and shows a number of labial plicae, resulting in a toothed lip on the inside. The inner lip is calloused, showing transverse plicae. https://image.nostr.build/fdafe3004d1240f1e5ce3eb3ce6d20ddc7ecd6c6bd2ba489710c6989a4f77dc4.jpg The anterior and posterior canals are well developed. The siphonal canal at the anterior end is usually short. The anal canal at the posterior end is a deep slot. The strong axial varices are often in two continuous series per whorl, one down each side of the shell. The nucleus of the corneous operculum is situated either at the anterior end or the mid-inner margin. A periostracum (hairy covering of the outer shell) is usually absent or thin. Credits Goes to the respective Author ✍️/ Photographer📸 🐇 🕳️ #Bitcoin #Satoshis #Freedom #Apocalypse #Music #Movies #Philosophy #Literature #dogstr #islands #scuba #marinelife