Ciliary muscle spasm: Related Topics. These medical condition or symptom topics may be relevant to medical information for Ciliary muscle spasm: 1  Ciliary muscle. 2  Muscle spasm (29 causes). 3  Ciliary. 4  Muscle. 5  Muscle symptoms (7251 causes). 6  Muscle disease.
Dolphins can at times be found in rivers as well. River dolphins are four living species of dolphin, which reside in freshwater rivers and estuaries. They are classed in the Platanistoidea super family of cetaceans. Three species live in fresh water rivers.The fourth species, the La Plata Dolphin, lives in salt-water estuaries and near-shore marine environments. However, it is scientifically classed in the river dolphin family rather than the oceanic dolphin family. These species may never venture towards the oceans.hree species live in fresh water rivers. The fourth species, the La Plata Dolphin, lives in salt-water estuaries and near-shore marine environments. However, it is scientifically classed in the river dolphin family rather than the oceanic dolphin family. These species may never venture towards the oceans.
The only places dolphins donât live are the polar regionsâalthough one dolphin species, the orca, or killer whale, lives close to both the Arctic and Antarctic. (And, yes, the orca is actually a dolphin species, rather than a whale.). Most dolphins live in the worldâs seas and oceans. But a fewâfour, to be exactâare river-dwelling dolphin species. The most well-known of these river dolphins are the two species that live in the tropical rivers of South America.